def test_time_from_mjd_string_accuracy_vs_longdouble(i, f):
mjd = np.longdouble(i) + np.longdouble(f)
s = str(mjd)
t = Time(val=i, val2=f, format="mjd", scale="utc")
assert abs(time_from_mjd_string(s) - t).to(u.us) < 1 * u.us
if 40000 <= i <= 60000:
assert abs(time_from_mjd_string(s) - t).to(u.us) < 1 * u.ns
# Get the output lines from the TOAs
for line, TOA in zip(goodlines, ts.table):
assert len(line.split()) == 20, \
"tempo2 general2 does not support all needed outputs"
oclk, ut1_utc, tai_utc, tt_tai, ttcorr, tt2tb, \
ep0, ep1, ep2, ev0, ev1, ev2, \
tp0, tp1, tp2, tv0, tv1, tv2, Ttt = \
(float(x) for x in line.split()[1:])
t2_epv = utils.PosVel(numpy.asarray([ep0, ep1, ep2]) * ls,
numpy.asarray([ev0, ev1, ev2]) * ls/u.s)
t2_opv = utils.PosVel(numpy.asarray([tp0, tp1, tp2]) * ls,
numpy.asarray([tv0, tv1, tv2]) * ls/u.s)
t2_ssb2obs = t2_epv + t2_opv
# print utils.time_toq_mjd_string(TOA.mjd.tt), line.split()[-1]
tempo_tt = utils.time_from_mjd_string(line.split()[-1], scale='tt')
# Ensure that the clock corrections are accurate to better than 0.1 ns
assert(math.fabs((oclk*u.s - TOA['flags']["clkcorr"]).to(u.ns).value) < 0.1)
log.info("TOA in tt difference is: %.2f ns" % \
((TOA['mjd'].tt - tempo_tt.tt).sec * u.s).to(u.ns).value)
pint_opv = erfautils.topo_posvels(TOA['obs'], TOA)[0] # usually for arrays...
#print " obs T2:", t2_opv.pos.to(u.m).value, t2_opv.vel.to(u.m/u.s)
#print " obs PINT:", pint_opv.pos.to(u.m), pint_opv.vel.to(u.m/u.s)
dopv = pint_opv - t2_opv
dpos = numpy.sqrt(numpy.dot(dopv.pos.to(u.m), dopv.pos.to(u.m)))
dvel = numpy.sqrt(numpy.dot(dopv.vel.to(u.mm/u.s), dopv.vel.to(u.mm/u.s)))
log.info(" obs diff: %.2f m, %.3f mm/s" % (dpos, dvel))
assert(dpos < 2.0 and dvel < 0.02)
"tempo2 general2 does not support all needed outputs"
oclk, gps_utc, tai_utc, tt_tai, ttcorr, tt2tb, \
ep0, ep1, ep2, ev0, ev1, ev2, \
tp0, tp1, tp2, tv0, tv1, tv2, Ttt = \
(float(x) for x in line.split())
t2_epv = utils.PosVel(
numpy.asarray([ep0, ep1, ep2]) * ls,
numpy.asarray([ev0, ev1, ev2]) * ls / u.s)
t2_opv = utils.PosVel(
numpy.asarray([tp0, tp1, tp2]) * ls,
numpy.asarray([tv0, tv1, tv2]) * ls / u.s)
t2_ssb2obs = t2_epv + t2_opv
# print utils.time_toq_mjd_string(TOA.mjd.tt), line.split()[-1]
tempo_tt = utils.time_from_mjd_string(line.split()[-1], scale='tt')
# Ensure that the clock corrections are accurate to better than 0.1 ns
assert (math.fabs(
(oclk * u.s + gps_utc * u.s - TOA['flags']["clkcorr"]).to(u.ns).value)
< 0.1)
log.info("TOA in tt difference is: %.2f ns" % \
((TOA['mjd'].tt - tempo_tt.tt).sec * u.s).to(u.ns).value)
pint_opv = erfautils.topo_posvels(Observatory.get(
TOA['obs']).earth_location,
TOA,
obsname=TOA['obs'])
pint_opv = utils.PosVel(pint_opv.pos.T[0], pint_opv.vel.T[0])
#print " obs T2:", t2_opv.pos.to(u.m).value, t2_opv.vel.to(u.m/u.s)
#print " obs PINT:", pint_opv.pos.to(u.m), pint_opv.vel.to(u.m/u.s)
print "param1 num value is ", param1.num_value
print "param1 value is ", param1.value, "With type ", type(param1.value)
print "param1 unit is ", param1.units
print "param1 num unit is ", param1.num_unit
# Change num_value
print "Change num_values"
param1.num_value = 10.0
print "param1 num value is ", param1.num_value
print "param1 value is ", param1.value, "With type ", type(param1.value)
print "param1 unit is ", param1.units
print "param1 num unit is ", param1.num_unit
# Test MJDparameter Class
paramMJD = p.MJDParameter(
name="TZRMJD",
description="Reference epoch for phase = 0.0",
parse_value=lambda x: time_from_mjd_string(x, scale="tdb"),
)
print "Before assigning paramMJD value."
print "paramMJD num value is ", longdouble2string(paramMJD.num_value)
print "paramMJD value is ", paramMJD.value, "With type ", type(paramMJD.value)
print "paramMJD unit is ", paramMJD.units
print "paramMJD num unit is ", paramMJD.num_unit
paramMJD.set("54001.012345678901234")
print "After assigning paramMJD value."
print "paramMJD num value is ", longdouble2string(paramMJD.num_value)
print "paramMJD value is ", paramMJD.value, "With type ", type(paramMJD.value)
print "paramMJD unit is ", paramMJD.units
print "paramMJD num unit is ", paramMJD.num_unit
# change num_value
paramMJD.num_value = data2longdouble("54001.012345678901234")
print "After assigning paramMJD num_value."
def test_time_from_mjd_string_roundtrip_very_close(i, f):
i = 50000
f = np.finfo(float).eps
t = Time(val=i, val2=f, format="pulsar_mjd", scale="utc")
s = time_to_mjd_string(t)
assert abs(time_from_mjd_string(s) - t).to(u.ns) <= 4 * time_eps
def test_times_against_tempo2():
log.setLevel('ERROR')
# for nice output info, set the following instead
#log.setLevel('INFO')
ls = u.def_unit('ls', const.c * 1.0 * u.s)
log.info("Reading TOAs into PINT")
ts = toa.get_TOAs(datadir + "/testtimes.tim",
include_bipm=False, usepickle=False)
if log.level < 25:
ts.print_summary()
ts.table.sort('index')
log.info("Calling TEMPO2")
#cmd = 'tempo2 -output general2 -f tests/testtimes.par tests/testtimes.tim -s "XXX {clock0} {clock1} {clock2} {clock3} {tt} {t2tb} {telSSB} {telVel} {Ttt}\n"'
# cmd = 'tempo2 -output general2 -f ' + datadir+'/testtimes.par ' + datadir + \
# '/testtimes.tim -s "XXX {clock0} {clock1} {clock2} {clock3} {tt} {t2tb} {earth_ssb1} {earth_ssb2} {earth_ssb3} {earth_ssb4} {earth_ssb5} {earth_ssb6} {telEpos} {telEVel} {Ttt}\n"'
# args = shlex.split(cmd)
#
# tout = subprocess.check_output(args)
# goodlines = [x for x in tout.split("\n") if x.startswith("XXX")]
#
# assert(len(goodlines)==len(ts.table))
#t2result = numpy.genfromtxt('datafile/testtimes.par' + '.tempo2_test', names=True, comments = '#')
f = open(datadir + '/testtimes.par' + '.tempo2_test')
lines = f.readlines()
goodlines = lines[1:]
# Get the output lines from the TOAs
for line, TOA in zip(goodlines, ts.table):
assert len(line.split()) == 19, \
"tempo2 general2 does not support all needed outputs"
oclk, gps_utc, tai_utc, tt_tai, ttcorr, tt2tb, \
ep0, ep1, ep2, ev0, ev1, ev2, \
tp0, tp1, tp2, tv0, tv1, tv2, Ttt = \
(float(x) for x in line.split())
t2_epv = utils.PosVel(numpy.asarray([ep0, ep1, ep2]) * ls,
numpy.asarray([ev0, ev1, ev2]) * ls/u.s)
t2_opv = utils.PosVel(numpy.asarray([tp0, tp1, tp2]) * ls,
numpy.asarray([tv0, tv1, tv2]) * ls/u.s)
t2_ssb2obs = t2_epv + t2_opv
# print utils.time_toq_mjd_string(TOA.mjd.tt), line.split()[-1]
tempo_tt = utils.time_from_mjd_string(line.split()[-1], scale='tt')
# Ensure that the clock corrections are accurate to better than 0.1 ns
assert(math.fabs((oclk*u.s + gps_utc*u.s - TOA['flags']["clkcorr"]).to(u.ns).value) < 0.1)
log.info("TOA in tt difference is: %.2f ns" % \
((TOA['mjd'].tt - tempo_tt.tt).sec * u.s).to(u.ns).value)
pint_opv = erfautils.gcrs_posvel_from_itrf(
Observatory.get(TOA['obs']).earth_location_itrf(),
TOA, obsname=TOA['obs'])
pint_opv = utils.PosVel(pint_opv.pos, pint_opv.vel)
#print " obs T2:", t2_opv.pos.to(u.m).value, t2_opv.vel.to(u.m/u.s)
#print " obs PINT:", pint_opv.pos.to(u.m), pint_opv.vel.to(u.m/u.s)
dopv = pint_opv - t2_opv
dpos = numpy.sqrt(numpy.dot(dopv.pos.to(u.m), dopv.pos.to(u.m)))
dvel = numpy.sqrt(numpy.dot(dopv.vel.to(u.mm/u.s), dopv.vel.to(u.mm/u.s)))
log.info(" obs diff: %.2f m, %.3f mm/s" % (dpos, dvel))
assert(dpos < 2.0 and dvel < 0.02)
pint_ssb2obs = PosVel(numpy.asarray(TOA['ssb_obs_pos'])*u.km,
numpy.asarray(TOA['ssb_obs_vel'])*u.km/u.s,
origin='SSB', obj='OBS')
#print " topo T2:", t2_ssb2obs.pos.to(u.km), t2_ssb2obs.vel.to(u.km/u.s)
#print " topo PINT:", pint_ssb2obs.pos.to(u.km), pint_ssb2obs.vel.to(u.km/u.s)
dtopo = pint_ssb2obs - t2_ssb2obs
dpos = numpy.sqrt(numpy.dot(dtopo.pos.to(u.m), dtopo.pos.to(u.m)))
dvel = numpy.sqrt(numpy.dot(dtopo.vel.to(u.mm/u.s), dtopo.vel.to(u.mm/u.s)))
log.info(" topo diff: %.2f m, %.3f m/s" % (dpos, dvel))
assert(dpos < 2.0 and dvel < 0.02)
