Exposure
ID
GRAVI.2025-04-10T01:16:45.034_1
Header ID
GRAVI.2025-04-10T01:16:45.034
Date updated
2025-04-10 01:25:34 UTC+0000
Release date
2025-04-10 01:16:45 UTC+0000
UTC Start
2025-04-10 01:16:45.034
UTC End
2025-04-10 01:18:05.034
MJD Start
60775.05329901
MJD End
60775.05422493592
Exposure time (s)
80.0
Validation level
1
Tau 0: Coherence time (s)
0.0056555
Ambient temperature (°C)
13.88
Seeing (arcsec)
0.43
Observation
ID
66164
Category
calibrator
Program ID
60.A-9801(U)
Program Title
TECHNICAL TIME
Program Type
Normal
PI / COI
OBSERVATORY
Target
ID
49258
Name
hd91881b
RA
159.020787
DEC
-26.67608
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 56.5140 56.5190 20.6000 20.8000
U1-U3 102.2480 102.2640 26.8000 27.0000
U1-U4 128.9550 129.0420 54.6520 54.8530
U2-U3 46.4760 46.4890 34.4000 34.6000
U2-U4 88.0270 88.1170 75.7290 75.9170
U3-U4 61.3360 61.4040 105.7390 105.8950
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 60.A-9801(U)
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 60775.05329901
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME hd91881b
HIERARCH ESO INS SOBJ NAME hd91881b
RA 159.020787
DEC -26.67608
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 95.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 56.514
HIERARCH ESO ISS PBL12 END 56.519
HIERARCH ESO ISS PBLA12 START 20.6
HIERARCH ESO ISS PBLA12 END 20.8
HIERARCH ESO ISS PBL13 START 102.248
HIERARCH ESO ISS PBL13 END 102.264
HIERARCH ESO ISS PBLA13 START 26.8
HIERARCH ESO ISS PBLA13 END 27.0
HIERARCH ESO ISS PBL14 START 128.955
HIERARCH ESO ISS PBL14 END 129.042
HIERARCH ESO ISS PBLA14 START 54.652
HIERARCH ESO ISS PBLA14 END 54.853
HIERARCH ESO ISS PBL23 START 46.476
HIERARCH ESO ISS PBL23 END 46.489
HIERARCH ESO ISS PBLA23 START 34.4
HIERARCH ESO ISS PBLA23 END 34.6
HIERARCH ESO ISS PBL24 START 88.027
HIERARCH ESO ISS PBL24 END 88.117
HIERARCH ESO ISS PBLA24 START 75.729
HIERARCH ESO ISS PBLA24 END 75.917
HIERARCH ESO ISS PBL34 START 61.336
HIERARCH ESO ISS PBL34 END 61.404
HIERARCH ESO ISS PBLA34 START 105.739
HIERARCH ESO ISS PBLA34 END 105.895
HIERARCH ESO ISS AMBI TAU0 START 0.006295
HIERARCH ESO ISS AMBI TAU0 END 0.005016
H