def main():
logger = logger_defaults.getProgramLogger("observe",
loglevel=logging.INFO)
# pulsar observation
ant_list = ["1a","1f"]
ata_control.reserve_antennas(ant_list)
atexit.register(ata_control.release_antennas, ant_list, False)
dump_thread = ata_coords.CoordDumpThread(ant_list,
"/mnt/buf0/obs/coords_dump.txt")
dump_thread.start()
atexit.register(dump_thread.stop)
#source = "GPS-BIIRM-3--PRN-12-"
source = "GPS-BIIF-6---PRN-06-"
ata_control.create_ephem(source, **{'duration': 2, 'interval': 0.1})
freqs = [1575]*len(ant_list)
snap_dada.set_freq_auto(freqs, ant_list)
antpols = ["%s%s" %(ant, pol) for ant in ant_list for pol in ["x", "y"]]
if_atten = {antpol:10 for antpol in antpols}
snap_if.setatten(if_atten)
pbfwhm = (3.5 / freqs[0] * 1000.0);
delta = pbfwhm / 2.0
obs_time = 30
offsets = [
[0., 4*delta],
[0., delta],
[0., 0.],
[0., -delta],
[0., -4*delta],
[-4*delta, 0.],
[-delta, 0.],
[0., 0.],
[delta, 0.],
[4*delta, 0.]
]
# offsets = az/el
for offset in offsets:
print(offset)
ata_control.track_and_offset(source, ant_list, offset=offset)
utc = snap_dada.start_recording(ant_list, obs_time, acclen=120*16,
disable_rfi=True)
def main():
logger = logger_defaults.getProgramLogger("observe", loglevel=logging.INFO)
# pulsar observation
ant_list = ["1a", "1f"]
ata_control.reserve_antennas(ant_list)
atexit.register(ata_control.release_antennas, ant_list, False)
source = "GPS-BIIRM-3--PRN-12-"
source = "casa"
ata_control.create_ephem(source)
freqs = [1575] * len(ant_list)
snap_dada.set_freq_auto(freqs, ant_list)
antpols = ["%s%s" % (ant, pol) for ant in ant_list for pol in ["x", "y"]]
if_atten = {antpol: 10 for antpol in antpols}
snap_if.setatten(if_atten)
pbfwhm = (3.5 / freqs[0] * 1000.0)
delta = pbfwhm / 2.0
obs_time = 30
delta = 1.
offsets = [[0., 4 * delta], [0., delta], [0., 0.], [0., -delta],
[0., -4 * delta], [-4 * delta, 0.], [-delta, 0.], [0., 0.],
[delta, 0.], [4 * delta, 0.]]
# offsets = az/el
for offset in offsets:
print(offset)
ata_control.track_and_offset(source, ant_list, offset=offset)
#utc = snap_dada.start_recording(ant_list, obs_time, acclen=120*16,
# disable_rfi=True)
_ = input("Press enter for next pointing")
def main():
logger = logger_defaults.getProgramLogger("observe", loglevel=logging.INFO)
ant_list = ['2b']
#pms = {ant:ata_pointing.PointingModel(ant) for ant in ant_list}
#pm = ata_pointing.PointingModel('3c')
ata_control.reserve_antennas(ant_list)
atexit.register(ata_control.release_antennas, ant_list, False)
pams = {ant + pol: 27 for ant in ant_list for pol in ["x", "y"]}
ifs = {ant + pol: 20 for ant in ant_list for pol in ["x", "y"]}
ata_control.set_pams(pams)
snap_if.setatten(ifs)
freq = 1575
snap_dada.set_freq_auto([freq] * len(ant_list), ant_list)
# define how to grid the sky
pbfwhm = (3.5 / freq * 1000.0)
delta = pbfwhm / 2.0
obs_time = 30
# elevation then azimuth
offsets = [[0., 4 * delta], [0., delta], [0., 0.], [0., -delta],
[0., -4 * delta], [-4 * delta, 0.], [-delta, 0.], [0., 0.],
[delta, 0.], [4 * delta, 0.]]
obs_time = 20
utcs = []
sats_observed = []
time_obs = []
t = time.time()
ofile = open("/home/obsuser/pointing/%i_atapointer.txt" % t, "w")
tpoints = {
ant: open("/home/obsuser/pointing/%i_%s_tpoint.txt" % (t, ant), "w")
for ant in ant_list
}
atexit.register(ofile.close)
for tpoint in tpoints.values():
atexit.register(tpoint.close)
while True:
#utc = snap_dada.start_recording(ant_list, obs_time, acclen=120*16,
# disable_rfi=True)
#utcs.append(utc)
#for ant in ant_list:
# p = get_power(utc, ant)
# print(ant, p, 10*np.log10(p), "dB")
sats = ata_sources.get_sats()['GPS']
setting_sats, rising_sats = select_group_sats(sats)
to_observe = None
# select a rising satellite from rising group first
# then check if there's any setting satellite, and observe
# that instead. The rising satellite will be selected in the
# following iteration
for sat_group in [rising_sats, setting_sats]:
for sat in sat_group:
name, az, el = sat['name'], float(sat['az']), float(sat['el'])
# skip if satellite has been observed in the last 5 times
if name in sats_observed[-5:]:
continue
to_observe = sat
ofile.write("will observe: %s, state: %s\n" %
(name, sat['state']))
break
# if all the satellites have been observed
if not to_observe:
# chose a random satellite that is setting, in case there's one
if len(setting_sats) != 0:
to_observe = random.choice(setting_sats)
# else chose one that is rising, if there's one
if len(rising_sats) != 0:
to_observe = random.choice(rising_sats)
if to_observe:
az, el = float(sat['az']), float(sat['el'])
name = sat['name']
ofile.write("%s: Observing: %s\n" %
(datetime.datetime.now(), to_observe['name']))
ofile.write("%s: Az, el, state: %.2f, %.2f, %s\n" %
(datetime.datetime.now(), az, el, sat['state']))
ata_control.create_ephem(name, **{'duration': 2, 'interval': 1})
# offsets = az/el
for i in range(nRepeats):
azs = {ant: [] for ant in ant_list}
els = {ant: [] for ant in ant_list}
az_offs = {ant: [] for ant in ant_list}
el_offs = {ant: [] for ant in ant_list}
meas = {ant: [] for ant in ant_list}
igrid = 0
# now do the cross pattern
for offset in offsets:
ofile.write("%s: %s" % (datetime.datetime.now(), offset))
ofile.write("\n")
ata_control.track_and_offset(name,
ant_list,
xoffset=offset)
for ant in ant_list:
# XXX: what az/el are these? Encoder or astronomical?
az_el = ata_control.get_az_el(ant_list)[ant]
# Determine the true position of satellite
x_el_off = offset[0]
el_off = offset[1]
az_off = x_el_off / np.cos(np.deg2rad(az_el[1]))
azs[ant].append(az_el[0] - az_off)
els[ant].append(az_el[1] - el_off)
az_offs[ant].append(az_off)
el_offs[ant].append(el_off)
# record data
utc = snap_dada.start_recording(ant_list,
obs_time,
acclen=120 * 16,
disable_rfi=True)
# get the measurement data
for ant in ant_list:
try:
meas[ant].append(get_power(utc, ant))
except:
meas[ant].append(np.nan)
for ant in ant_list:
ofile.write(ant + "\n")
az_avg = np.array(azs[ant]).mean()
el_avg = np.array(els[ant]).mean()
ofile.write("%s: azimuths: " % (datetime.datetime.now()) +
float_arr_to_str(azs[ant]) + "\n")
ofile.write("%s: elevations: " %
(datetime.datetime.now()) +
float_arr_to_str(els[ant]) + "\n")
ofile.write("%s: az_offsets: " %
(datetime.datetime.now()) +
float_arr_to_str(az_offs[ant]) + "\n")
ofile.write("%s: el_offsets: " %
(datetime.datetime.now()) +
float_arr_to_str(el_offs[ant]) + "\n")
ofile.write("%s: meas: " % (datetime.datetime.now()) +
float_arr_to_str(meas[ant]) + "\n")
ofile.write("%s: source az_avg: " %
(datetime.datetime.now()) + str(az_avg) + "\n")
ofile.write("%s: source el_avg: " %
(datetime.datetime.now()) + str(el_avg) + "\n")
try:
peak_el = analyzeFivePoints(el_offs[ant][:5],
meas[ant][:5])
peak_pos_el, peak_val_el, peak_width_el = peak_el
peak_az = analyzeFivePoints(az_offs[ant][5:],
meas[ant][5:])
peak_pos_az, peak_val_az, peak_width_az = peak_az
peak_sbr = np.sqrt(peak_val_az**2 + peak_val_el**2)
except:
ofile.write(
"%s: Something went wrong with measuring power with ant: %s\n"
% (datetime.datetime.now(), ant))
continue
ofile.write("%f %f %f\n" %
(peak_pos_el, peak_val_el, peak_width_el))
ofile.write("%f %f %f\n" %
(peak_pos_az, peak_val_az, peak_width_az))
meas_az = (az_avg + peak_pos_az)
meas_el = (el_avg + peak_pos_el)
#meas_az, meas_el, ir = pms[ant].applyTPOINTCorrections(meas_az, meas_el, 0)
dt = datetime.datetime.now()
hour = dt.hour + dt.minute / 60.
tpoints[ant].write(
"%.3f, %.3f, %.3f, %.3f, %.3f, %.3f\n" %
(az_avg, el_avg, meas_az, meas_el, peak_sbr, hour))
tpoints[ant].flush()
os.system("killall ata_udpdb")
sats_observed.append(to_observe['name'])
else:
# wait for 20 minutes and see what other satellite pops up
ofile.write("%s: nothing to observe, waiting\n" %
(datetime.datetime.now()))
#sats_observed = []
time.sleep(20 * 60)
ofile.flush()
def main():
logger = logger_defaults.getProgramLogger("observe", loglevel=logging.INFO)
ant_list = ['1h', '2h']
#ant_list = ["1a", "1f", "1c", "2a", "2b", "2h",
# "3c", "4g", "1k", "5c", "1h", "4j"]
#ant_list = ["1a", "1f", "1c", "2a", "2b", "3d",
# "3c", "4g", "1k", "5c", "1h", "4j"]
#ant_list = ["1c", "1e", "1g", "1h", "1k", "2a", "2b", "2c",
# "2e", "2h", "2j", "2k", "2l", "2m", "3c", "3d",
# "3l", "4j", "5b", "4g"]
lo = "B"
antlo_list = [ant + lo for ant in ant_list]
#ant_list = ["2a", "2b", "5c"]
pms = {ant: ata_pointing.PointingModel(ant) for ant in ant_list}
#pm = ata_pointing.PointingModel('3c')
ata_control.reserve_antennas(ant_list)
atexit.register(ata_control.release_antennas, ant_list, False)
#pams = {ant+pol:27 for ant in ant_list for pol in ["x","y"]}
#ifs = {antlo+pol:20 for antlo in antlo_list for pol in ["x","y"]}
#ata_control.set_pams(pams)
#snap_if.setatten(ifs)
freq = 1575
#snap_dada.set_freq_auto([freq]*len(ant_list), ant_list)
ata_control.set_freq([freq] * len(ant_list), ant_list, lo='b')
# define how to grid the sky
pbfwhm = (3.5 / freq * 1000.0)
delta = pbfwhm / 2.0
obs_time = 30
# elevation then azimuth
offsets = [[0., 4 * delta], [0., delta], [0., 0.], [0., -delta],
[0., -4 * delta], [-4 * delta, 0.], [-delta, 0.], [0., 0.],
[delta, 0.], [4 * delta, 0.]]
obs_time = 20
utcs = []
sats_observed = []
time_obs = []
t = time.time()
basedir = "/home/obsuser/pointing_2pol"
# create directory for the pointing
os.mkdir("%s/%i" % (basedir, t))
ofile = open("%s/%i/%i_atapointer.txt" % (basedir, t, t), "w")
#tpoints = {ant:open("/home/obsuser/pointing/%i/%i_%s_%p.tpoint" %(t,t,ant,polr), "w")
# for ant in ant_list}
tpoints_x = {
ant: open("%s/%i/%i_%s_x.tpoint" % (basedir, t, t, ant), "w")
for ant in ant_list
}
tpoints_y = {
ant: open("%s/%i/%i_%s_y.tpoint" % (basedir, t, t, ant), "w")
for ant in ant_list
}
atexit.register(ofile.close)
for tpointx in tpoints_x.values():
atexit.register(tpointx.close)
for tpointy in tpoints_y.values():
atexit.register(tpointy.close)
for ant in ant_list:
tpoint_file = tpoints_x[ant]
pm = pms[ant]
write_header(tpoint_file, pm, freq, "x")
for ant in ant_list:
tpoint_file = tpoints_y[ant]
pm = pms[ant]
write_header(tpoint_file, pm, freq, "y")
while True:
sats = ata_sources.get_sats()['GPS']
setting_sats, rising_sats = select_group_sats(sats)
to_observe = None
# select a rising satellite from rising group first
# then check if there's any setting satellite, and observe
# that instead. The rising satellite will be selected in the
# following iteration
for sat_group in [rising_sats, setting_sats]:
for sat in sat_group:
name, az, el = sat['name'], float(sat['az']), float(sat['el'])
# skip if satellite has been observed in the last 5 times
if name in sats_observed[-5:]:
continue
to_observe = sat
ofile.write("will observe: %s, state: %s\n" %
(name, sat['state']))
break
# if all the satellites have been observed
if not to_observe:
# chose a random satellite that is setting, in case there's one
if len(setting_sats) != 0:
to_observe = random.choice(setting_sats)
# else chose one that is rising, if there's one
if len(rising_sats) != 0:
to_observe = random.choice(rising_sats)
if to_observe:
az, el = float(sat['az']), float(sat['el'])
name = sat['name']
ofile.write("%s: Observing: %s\n" %
(datetime.datetime.now(), to_observe['name']))
ofile.write("%s: Az, el, state: %.2f, %.2f, %s\n" %
(datetime.datetime.now(), az, el, sat['state']))
ephem = ata_control.create_ephem(name, **{
'duration': 2,
'interval': 1
})
ephem = np.array(ephem)
# offsets = az/el
for i in range(nRepeats):
got_nan = False
azs = {ant: [] for ant in ant_list}
els = {ant: [] for ant in ant_list}
az_offs = {ant: [] for ant in ant_list}
el_offs = {ant: [] for ant in ant_list}
meas_x = {ant: [] for ant in ant_list}
meas_y = {ant: [] for ant in ant_list}
igrid = 0
t1 = time.time() * 1e9 #nanoseconds
# now do the cross pattern
for offset in offsets:
ofile.write("%s: %s" % (datetime.datetime.now(), offset))
ofile.write("\n")
ata_control.make_and_track_source(name,
ant_list) #track source
ata_control.autotune(ant_list)
snap_if.tune_if_antslo(antlo_list)
ata_control.track_and_offset(name,
ant_list,
xoffset=offset)
for ant in ant_list:
# XXX: what az/el are these? Encoder or astronomical?
az_el = ata_control.get_az_el(ant_list)[ant]
# Determine the true position of satellite
x_el_off = offset[0]
el_off = offset[1]
az_off = x_el_off / np.cos(np.deg2rad(az_el[1]))
azs[ant].append(az_el[0] - az_off)
els[ant].append(az_el[1] - el_off)
az_offs[ant].append(az_off)
el_offs[ant].append(el_off)
# record data
utc = snap_dada.start_recording(antlo_list,
obs_time,
acclen=120 * 16,
disable_rfi=True)
os.system("killall ata_udpdb")
# move data from antlo to ant format in /mnt/buf0/obs/utc
mv_utc_antlo_to_ant(utc)
# get the measurement data
for ant in ant_list:
try:
meas_x[ant].append(get_power(utc, ant, 'x'))
except:
got_nan = True
meas_x[ant].append(np.nan)
for ant in ant_list:
try:
meas_y[ant].append(get_power(utc, ant, 'y'))
except:
got_nan = True
meas_y[ant].append(np.nan)
t2 = time.time() * 1e9 #nanoseconds
az_avg_src, el_avg_src = get_ephem_az_el(ephem, t1, t2)
for ant in ant_list:
ofile.write(ant + "\n")
az_avg = np.array(azs[ant]).mean()
el_avg = np.array(els[ant]).mean()
ofile.write("%s: azimuths: " % (datetime.datetime.now()) +
float_arr_to_str(azs[ant]) + "\n")
ofile.write("%s: elevations: " %
(datetime.datetime.now()) +
float_arr_to_str(els[ant]) + "\n")
ofile.write("%s: az_offsets: " %
(datetime.datetime.now()) +
float_arr_to_str(az_offs[ant]) + "\n")
ofile.write("%s: el_offsets: " %
(datetime.datetime.now()) +
float_arr_to_str(el_offs[ant]) + "\n")
ofile.write("%s: meas: " % (datetime.datetime.now()) +
float_arr_to_str(meas_x[ant]) + "\n")
ofile.write("%s: meas: " % (datetime.datetime.now()) +
float_arr_to_str(meas_y[ant]) + "\n")
ofile.write("%s: source az_avg: " %
(datetime.datetime.now()) + str(az_avg) + "\n")
ofile.write("%s: source el_avg: " %
(datetime.datetime.now()) + str(el_avg) + "\n")
ofile.write("%s: source ephem az_avg: " %
(datetime.datetime.now()) + str(az_avg_src) +
"\n")
ofile.write("%s: source ephem el_avg: " %
(datetime.datetime.now()) + str(el_avg_src) +
"\n")
#xpol
try:
peak_el_x = analyzeFivePoints(el_offs[ant][:5],
meas_x[ant][:5])
peak_pos_el_x, peak_val_el_x, peak_width_el_x = peak_el_x
peak_az_x = analyzeFivePoints(az_offs[ant][5:],
meas_x[ant][5:])
peak_pos_az_x, peak_val_az_x, peak_width_az_x = peak_az_x
peak_sbr_x = np.sqrt(peak_val_az_x**2 +
peak_val_el_x**2)
except:
ofile.write(
"%s: Something went wrong with measuring power with ant: %s, pol x\n"
% (datetime.datetime.now(), ant))
continue
ofile.write(
"El: %f %f %f\n" %
(peak_pos_el_x, peak_val_el_x, peak_width_el_x))
ofile.write(
"Az: %f %f %f\n" %
(peak_pos_az_x, peak_val_az_x, peak_width_az_x))
meas_az_x = (az_avg + peak_pos_az_x)
meas_el_x = (el_avg + peak_pos_el_x)
meas_az_x, meas_el_x, ir = pms[ant].applyTPOINTCorrections(
meas_az_x, meas_el_x, 0)
dt = datetime.datetime.now()
hour = dt.hour + dt.minute / 60.
tpoints_x[ant].write(
"%.3f, %.3f, %.3f, %.3f, %.3f, %.3f ! %.3f, %.3f\n" %
(az_avg, el_avg, meas_az_x, meas_el_x, peak_sbr_x,
hour, peak_pos_az_x, peak_pos_el_x))
tpoints_x[ant].flush()
#ypol
try:
peak_el_y = analyzeFivePoints(el_offs[ant][:5],
meas_y[ant][:5])
peak_pos_el_y, peak_val_el_y, peak_width_el_y = peak_el_y
peak_az_y = analyzeFivePoints(az_offs[ant][5:],
meas_y[ant][5:])
peak_pos_az_y, peak_val_az_y, peak_width_az_y = peak_az_y
peak_sbr_y = np.sqrt(peak_val_az_y**2 +
peak_val_el_y**2)
except:
ofile.write(
"%s: Something went wrong with measuring power with ant: %s pol y\n"
% (datetime.datetime.now(), ant))
continue
#ofile.write("El: %f %f %f\n" %(peak_pos_el, peak_val_el, peak_width_el))
#ofile.write("Az: %f %f %f\n" %(peak_pos_az, peak_val_az, peak_width_az))
meas_az_y = (az_avg + peak_pos_az_y)
meas_el_y = (el_avg + peak_pos_el_y)
meas_az_y, meas_el_y, ir = pms[ant].applyTPOINTCorrections(
meas_az_y, meas_el_y, 0)
dt = datetime.datetime.now()
hour = dt.hour + dt.minute / 60.
tpoints_y[ant].write(
"%.3f, %.3f, %.3f, %.3f, %.3f, %.3f ! %.3f, %.3f\n" %
(az_avg, el_avg, meas_az_y, meas_el_y, peak_sbr_y,
hour, peak_pos_az_y, peak_pos_el_y))
tpoints_y[ant].flush()
if got_nan:
#os.system("bash ~/backends/frb_backend/snap_init_spec_skipprog.bash")
os.system(
"bash /home/obsuser/src/ata_snap_rfsoc/program_rfsoc_spec.sh"
)
sats_observed.append(to_observe['name'])
else:
# wait for 20 minutes and see what other satellite pops up
print(rising_sats)
print(setting_sats)
ofile.write("%s: nothing to observe, waiting\n" %
(datetime.datetime.now()))
#sats_observed = []
time.sleep(20 * 60)
ofile.flush()
def main():
logger = logger_defaults.getProgramLogger("observe", loglevel=logging.INFO)
#ant_list = ['2b']
#ant_list = ["1a", "1f", "1c", "2a", "2b", "2h",
# "3c", "4g", "1k", "5c", "1h", "4j"]
#ant_list = ["1a", "1f", "1c", "2a", "2b", "3d",
# "3c", "4g", "1k", "5c", "1h", "4j"]
ant_list = [
"1c", "1e", "1g", "1h", "2a", "2b", "2c", "2e", "2h", "2j", "2k", "2l",
"2m", "3c", "3d", "3l", "4j", "5b", "4g"
] #1k left out cuz of weird movement
# ant_list = ["1c", "1e", "1g", "1h", "2a", "2b", "2c",
# "2h", "2j", "2k", "2l", "3c", "3d",
# "3l", "4j", "5b", "4g"] #2e,2m and 1k left out cuz of Danni + weird movement
lo = "B"
antlo_list = [ant + lo for ant in ant_list]
#ant_list = ["2a", "2b", "5c"]
pms = {ant: ata_pointing.PointingModel(ant) for ant in ant_list}
#pm = ata_pointing.PointingModel('3c')
ata_control.reserve_antennas(ant_list)
atexit.register(ata_control.release_antennas, ant_list, False)
pams = {ant + pol: 27 for ant in ant_list for pol in ["x", "y"]}
ifs = {antlo + pol: 20 for antlo in antlo_list for pol in ["x", "y"]}
ata_control.set_pams(pams)
snap_if.setatten(ifs)
freq = 1600
#snap_dada.set_freq_auto([freq]*len(ant_list), ant_list)
ata_control.set_freq([freq] * len(ant_list), ant_list, lo='b')
# define how to grid the sky
pbfwhm = (3.5 / freq * 1000.0)
delta = pbfwhm / 2.0
obs_time = 30
# elevation then azimuth
offsets = [[0., 4 * delta], [0., delta], [0., 0.], [0., -delta],
[0., -4 * delta], [-4 * delta, 0.], [-delta, 0.], [0., 0.],
[delta, 0.], [4 * delta, 0.]]
obs_time = 20
sats_observed = []
time_obs = []
t = time.time()
basedir = "/home/obsuser/pointing_goes_2pol"
# create directory for the pointing
os.mkdir("%s/%i" % (basedir, t))
ofile = open("%s/%i/%i_atapointer.txt" % (basedir, t, t), "w")
#tpoints = {ant:open("/home/obsuser/pointing/%i/%i_%s_%p.tpoint" %(t,t,ant,polr), "w")
# for ant in ant_list}
tpoints_x = {
ant: open("%s/%i/%i_%s_x.tpoint" % (basedir, t, t, ant), "w")
for ant in ant_list
}
tpoints_y = {
ant: open("%s/%i/%i_%s_y.tpoint" % (basedir, t, t, ant), "w")
for ant in ant_list
}
atexit.register(ofile.close)
for tpointx in tpoints_x.values():
atexit.register(tpointx.close)
for tpointy in tpoints_y.values():
atexit.register(tpointy.close)
for ant in ant_list:
tpoint_file = tpoints_x[ant]
pm = pms[ant]
write_header(tpoint_file, pm, freq, "x")
for ant in ant_list:
tpoint_file = tpoints_y[ant]
pm = pms[ant]
write_header(tpoint_file, pm, freq, "y")
sats = ['GOES-16', 'GOES-17']
for sat_name in sats:
name = sat_name
ephem = ata_control.create_ephem(name, **{
'duration': 2,
'interval': 1
})
ephem = np.array(ephem)
# offsets = az/el
for i in range(nRepeats):
utcs = []
got_nan = False
azs = {ant: [] for ant in ant_list}
els = {ant: [] for ant in ant_list}
az_offs = {ant: [] for ant in ant_list}
el_offs = {ant: [] for ant in ant_list}
meas_x = {ant: [] for ant in ant_list}
meas_y = {ant: [] for ant in ant_list}
igrid = 0
t1 = time.time() * 1e9 #nanoseconds
# now do the cross pattern
for offset in offsets:
ofile.write("%s: %s" % (datetime.datetime.now(), offset))
ofile.write("\n")
ata_control.track_and_offset(name, ant_list, xoffset=offset)
for ant in ant_list:
# XXX: what az/el are these? Encoder or astronomical?
az_el = ata_control.get_az_el(ant_list)[ant]
# Determine the true position of satellite
x_el_off = offset[0]
el_off = offset[1]
az_off = x_el_off / np.cos(np.deg2rad(az_el[1]))
azs[ant].append(az_el[0] - az_off)
els[ant].append(az_el[1] - el_off)
az_offs[ant].append(az_off)
el_offs[ant].append(el_off)
# record data
utc = snap_dada.start_recording(antlo_list,
obs_time,
acclen=120 * 16,
disable_rfi=True)
utcs.append(utc)
os.system("killall ata_udpdb")
# move data from antlo to ant format in /mnt/buf0/obs/utc
mv_utc_antlo_to_ant(utc)
# get the measurement data
for ant in ant_list:
try:
meas_x[ant].append(get_power(utc, ant, 'x'))
except:
got_nan = True
meas_x[ant].append(np.nan)
for ant in ant_list:
try:
meas_y[ant].append(get_power(utc, ant, 'y'))
except:
got_nan = True
meas_y[ant].append(np.nan)
t2 = time.time() * 1e9 #nanoseconds
az_avg_src, el_avg_src = get_ephem_az_el(ephem, t1, t2)
base_utcs = " ".join(["/mnt/buf0/obs/%s" % utc for utc in utcs])
#os.system("mv /mnt/buf0/obs/%s /mnt/datax-netStorage-40G/pointing_obs/" %utc)
os.system("mv " + base_utcs +
" /mnt/datax-netStorage-40G/pointing_obs/")
for ant in ant_list:
ofile.write(ant + "\n")
az_avg = np.array(azs[ant]).mean()
el_avg = np.array(els[ant]).mean()
ofile.write("%s: azimuths: " % (datetime.datetime.now()) +
float_arr_to_str(azs[ant]) + "\n")
ofile.write("%s: elevations: " % (datetime.datetime.now()) +
float_arr_to_str(els[ant]) + "\n")
ofile.write("%s: az_offsets: " % (datetime.datetime.now()) +
float_arr_to_str(az_offs[ant]) + "\n")
ofile.write("%s: el_offsets: " % (datetime.datetime.now()) +
float_arr_to_str(el_offs[ant]) + "\n")
ofile.write("%s: meas: " % (datetime.datetime.now()) +
float_arr_to_str(meas_x[ant]) + "\n")
ofile.write("%s: meas: " % (datetime.datetime.now()) +
float_arr_to_str(meas_y[ant]) + "\n")
ofile.write("%s: source az_avg: " % (datetime.datetime.now()) +
str(az_avg) + "\n")
ofile.write("%s: source el_avg: " % (datetime.datetime.now()) +
str(el_avg) + "\n")
ofile.write("%s: source ephem az_avg: " %
(datetime.datetime.now()) + str(az_avg_src) + "\n")
ofile.write("%s: source ephem el_avg: " %
(datetime.datetime.now()) + str(el_avg_src) + "\n")
#xpol
try:
peak_el_x = analyzeFivePoints(el_offs[ant][:5],
meas_x[ant][:5])
peak_pos_el_x, peak_val_el_x, peak_width_el_x = peak_el_x
peak_az_x = analyzeFivePoints(az_offs[ant][5:],
meas_x[ant][5:])
peak_pos_az_x, peak_val_az_x, peak_width_az_x = peak_az_x
peak_sbr_x = np.sqrt(peak_val_az_x**2 + peak_val_el_x**2)
except:
ofile.write(
"%s: Something went wrong with measuring power with ant: %s, pol x\n"
% (datetime.datetime.now(), ant))
continue
ofile.write("El: %f %f %f\n" %
(peak_pos_el_x, peak_val_el_x, peak_width_el_x))
ofile.write("Az: %f %f %f\n" %
(peak_pos_az_x, peak_val_az_x, peak_width_az_x))
meas_az_x = (az_avg + peak_pos_az_x)
meas_el_x = (el_avg + peak_pos_el_x)
meas_az_x, meas_el_x, ir = pms[ant].applyTPOINTCorrections(
meas_az_x, meas_el_x, 0)
dt = datetime.datetime.now()
hour = dt.hour + dt.minute / 60.
tpoints_x[ant].write(
"%.3f, %.3f, %.3f, %.3f, %.3f, %.3f ! %.3f, %.3f\n" %
(az_avg, el_avg, meas_az_x, meas_el_x, peak_sbr_x, hour,
peak_pos_az_x, peak_pos_el_x))
tpoints_x[ant].flush()
#ypol
try:
peak_el_y = analyzeFivePoints(el_offs[ant][:5],
meas_y[ant][:5])
peak_pos_el_y, peak_val_el_y, peak_width_el_y = peak_el_y
peak_az_y = analyzeFivePoints(az_offs[ant][5:],
meas_y[ant][5:])
peak_pos_az_y, peak_val_az_y, peak_width_az_y = peak_az_y
peak_sbr_y = np.sqrt(peak_val_az_y**2 + peak_val_el_y**2)
except:
ofile.write(
"%s: Something went wrong with measuring power with ant: %s pol y\n"
% (datetime.datetime.now(), ant))
continue
#ofile.write("El: %f %f %f\n" %(peak_pos_el, peak_val_el, peak_width_el))
#ofile.write("Az: %f %f %f\n" %(peak_pos_az, peak_val_az, peak_width_az))
meas_az_y = (az_avg + peak_pos_az_y)
meas_el_y = (el_avg + peak_pos_el_y)
meas_az_y, meas_el_y, ir = pms[ant].applyTPOINTCorrections(
meas_az_y, meas_el_y, 0)
dt = datetime.datetime.now()
hour = dt.hour + dt.minute / 60.
tpoints_y[ant].write(
"%.3f, %.3f, %.3f, %.3f, %.3f, %.3f ! %.3f, %.3f\n" %
(az_avg, el_avg, meas_az_y, meas_el_y, peak_sbr_y, hour,
peak_pos_az_y, peak_pos_el_y))
tpoints_y[ant].flush()
if got_nan:
#os.system("bash ~/backends/frb_backend/snap_init_spec_skipprog.bash")
os.system(
"bash /home/obsuser/src/ata_snap_rfsoc/program_rfsoc_spec.sh"
)
ofile.flush()
def main():
logger = logger_defaults.getProgramLogger("observe",
loglevel=logging.INFO)
ant_list = ['3c']
#pms = {ant:ata_pointing.PointingModel(ant) for ant in ant_list}
pm = ata_pointing.PointingModel('3c')
ata_control.reserve_antennas(ant_list)
atexit.register(ata_control.release_antennas, ant_list, False)
pams = {ant+pol:27 for ant in ant_list for pol in ["x","y"]}
ifs = {ant+pol:27 for ant in ant_list for pol in ["x","y"]}
ata_control.set_pams(pams)
snap_if.setatten(ifs)
freq = 1575
snap_dada.set_freq_auto([freq]*len(ant_list), ant_list)
obs_time = 10
utcs = []
sats_observed = []
time_obs = []
ofile = open("./atapointer.txt", "w")
tpoint = open("./3c_tpoint.txt", "w")
atexit.register(ofile.close)
atexit.register(tpoint.close)
while True:
#utc = snap_dada.start_recording(ant_list, obs_time, acclen=120*16,
# disable_rfi=True)
#utcs.append(utc)
#for ant in ant_list:
# p = get_power(utc, ant)
# print(ant, p, 10*np.log10(p), "dB")
sats = ata_sources.get_sats()['GPS']
setting_sats, rising_sats = select_group_sats(sats)
to_observe = None
# select a rising satellite from rising group first
# then check if there's any setting satellite, and observe
# that instead. The rising satellite will be selected in the
# following iteration
for sat_group in [rising_sats, setting_sats]:
for sat in sat_group:
name, az, el = sat['name'], float(sat['az']), float(sat['el'])
# skip if satellite has been observed in the last 5 times
if name in sats_observed[-5:]:
continue
to_observe = sat
#print("will observe: %s, state: %s" %(name, sat['state']))
break
# if all the satellites have been observed
if not to_observe:
# chose a random satellite that is setting, in case there's one
if len(setting_sats) != 0:
to_observe = random.choice(setting_sats)
# else chose one that is rising, if there's one
if len(rising_sats) != 0:
to_observe = random.choice(rising_sats)
if to_observe:
az, el = float(sat['az']), float(sat['el'])
name = sat['name']
ofile.write("%s: Observing: %s\n" %(
datetime.datetime.now(), to_observe['name']))
ofile.write("%s: Az, el, state: %.2f, %.2f, %s\n" %(
datetime.datetime.now(),az, el, sat['state']))
ata_control.create_ephem(name,
**{'duration': 2, 'interval': 1})
pbfwhm = (3.5 / freq * 1000.0);
delta = pbfwhm / 2.0
obs_time = 30
# elevation then azimuth
offsets = [
[0., 4*delta],
[0., delta],
[0., 0.],
[0., -delta],
[0., -4*delta],
[-4*delta, 0.],
[-delta, 0.],
[0., 0.],
[delta, 0.],
[4*delta, 0.]
]
# offsets = az/el
for i in range(nRepeats):
azs = []
els = []
az_offs = []
el_offs = []
meas = []
igrid = 0
for offset in offsets:
ofile.write("%s %s" %(datetime.datetime.now(), offset))
ofile.write("\n")
ata_control.track_and_offset(name, ant_list, xoffset=offset)
az_el = ata_control.get_az_el(ant_list)['3c'] #XXX
# Determine the true position of satellite
x_el_off = offset[0]
el_off = offset[1]
az_off = x_el_off / np.cos(np.deg2rad(az_el[1]))
azs.append(az_el[0] - az_off)
els.append(az_el[1] - el_off)
az_offs.append(az_off)
el_offs.append(el_off)
time.sleep(30)
utc = snap_dada.start_recording(ant_list, obs_time, acclen=120*16,
disable_rfi=True)
meas.append(get_power(utc, "3c"))
az_avg = np.array(azs).mean()
el_avg = np.array(els).mean()
print(azs)
print(els)
print(az_offs)
print(el_offs)
print(meas)
print(az_avg)
print(el_avg)
peak_el = analyzeFivePoints(el_offs[:5], meas[:5])
peak_pos_el, peak_val_el, peak_width_el = peak_el
peak_az = analyzeFivePoints(az_offs[5:], meas[5:])
peak_pos_az, peak_val_az, peak_width_az = peak_az
peak_sbr = np.sqrt(peak_val_az**2 + peak_val_el**2)
print(peak_pos_el, peak_val_el, peak_width_el)
print(peak_pos_az, peak_val_az, peak_width_az)
meas_az = (az_avg + peak_pos_az)
meas_el = (el_avg + peak_pos_el)
meas_az, meas_el, ir = pm.applyTPOINTCorrections(meas_az, meas_el, 0)
dt = datetime.datetime.now()
hour = dt.hour + dt.minute/60.
tpoint.write("! %.3f, %.3f, %.3f, %.3f, %.3f, %.3f\n"
%(az_avg, el_avg, meas_az, meas_el, peak_sbr, hour))
sats_observed.append(to_observe['name'])
else:
# wait for 20 minutes and see what other satellite pops up
ofile.write("%s: nothing to observe, waiting\n" %(
datetime.datetime.now()))
#sats_observed = []
time.sleep(20*60)
ofile.flush()