Exposure
ID
GRAVI.2024-04-28T06:43:20.602_1
Header ID
GRAVI.2024-04-28T06:43:20.602
Date updated
2024-04-28 06:55:25 UTC+0000
Release date
2025-04-28 06:55:25 UTC+0000
UTC Start
2024-04-28 06:43:20.602
UTC End
2024-04-28 06:46:00.602
MJD Start
60428.28009956
MJD End
60428.28195141185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0029685
Ambient temperature (°C)
16.73
Seeing (arcsec)
0.89
Observation
ID
58987
Category
science
Program ID
113.26A2.001
Program Title
ORBITAL AND SPECTRAL CHARACTERISATION OF A UNIQUE QUADRUPLE (OR QUINTUPLE?) SYSTEM
Program Type
Normal
PI / COI
VISWANATH / JANSON / LACOUR / SQUICCIARINI / CHOMEZ / DELORME / RINGQVIST / LAGRANGE / CHAUVIN / VIGAN
Target
ID
43671
Name
HIP_81208_B
RA
248.810395
DEC
-35.72483
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 55.8210 55.7800 25.5000 25.9000
U1-U3 101.3080 101.2240 31.9000 32.2000
U1-U4 129.8870 129.8010 59.7480 60.1470
U2-U3 46.2490 46.2080 39.6000 39.9000
U2-U4 89.4290 89.4240 80.3020 80.7230
U3-U4 62.1840 62.2380 109.3250 109.7290
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26A2.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60428.28009956
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HIP 81208
HIERARCH ESO INS SOBJ NAME HIP_81208_B
RA 248.810395
DEC -35.72483
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 176.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 55.821
HIERARCH ESO ISS PBL12 END 55.78
HIERARCH ESO ISS PBLA12 START 25.5
HIERARCH ESO ISS PBLA12 END 25.9
HIERARCH ESO ISS PBL13 START 101.308
HIERARCH ESO ISS PBL13 END 101.224
HIERARCH ESO ISS PBLA13 START 31.9
HIERARCH ESO ISS PBLA13 END 32.2
HIERARCH ESO ISS PBL14 START 129.887
HIERARCH ESO ISS PBL14 END 129.801
HIERARCH ESO ISS PBLA14 START 59.748
HIERARCH ESO ISS PBLA14 END 60.147
HIERARCH ESO ISS PBL23 START 46.249
HIERARCH ESO ISS PBL23 END 46.208
HIERARCH ESO ISS PBLA23 START 39.6
HIERARCH ESO ISS PBLA23 END 39.9
HIERARCH ESO ISS PBL24 START 89.429
HIERARCH ESO ISS PBL24 END 89.424
HIERARCH ESO ISS PBLA24 START 80.302
HIERARCH ESO ISS PBLA24 END 80.723
HIERARCH ESO ISS PBL34 START 62.184
HIERARCH ESO ISS PBL34 END 62.238
HIERARCH ESO ISS PBLA34 START 109.325
HIERARCH ESO ISS PBLA34 END 109.729
HIERARCH ESO ISS AMBI TAU0 START 0.002836
HIERARCH ESO ISS AMBI TAU0 END 0.003101
HIERARCH ESO ISS AMBI TEMP 16.73
HIERARCH ESO ISS AMBI FWHM START 0.91
HIERARCH ESO ISS AMBI FWHM END 0.87
HIERARCH ESO FT ROBJ NAME HIP_81208
HIERARCH ESO FT ROBJ ALPHA 163513.839
HIERARCH ESO FT ROBJ DELTA -354328.725