Exposure
ID
GRAVI.2025-11-06T09:03:39.578_1
Header ID
GRAVI.2025-11-06T09:03:39.578
Date updated
2025-11-06 09:15:54 UTC+0000
Release date
2026-11-06 09:15:54 UTC+0000
UTC Start
2025-11-06 09:03:39.578
UTC End
2025-11-06 09:05:03.578
MJD Start
60985.37754141
MJD End
60985.378513632226
Exposure time (s)
84.0
Validation level
1
Tau 0: Coherence time (s)
0.00335
Ambient temperature (°C)
10.28
Seeing (arcsec)
0.765
Observation
ID
71189
Category
science
Program ID
116.29H7.001
Program Title
GPAO COMMISSIONING
Program Type
Normal
PI / COI
TEAM
Target
ID
52856
Name
51_Eri
RA
69.402827
DEC
-2.47378
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 56.5000 56.4880 35.3000 35.3000
U1-U3 101.6320 101.5700 39.7000 39.7000
U1-U4 116.7760 116.3960 61.3120 61.2280
U2-U3 45.5150 45.4600 45.2000 45.2000
U2-U4 70.5200 70.1110 81.9070 81.8780
U3-U4 43.5300 43.2400 120.5280 120.7720
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.29H7.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60985.37754141
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME 51 Eri
HIERARCH ESO INS SOBJ NAME 51_Eri
RA 69.402827
DEC -2.47378
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 109.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 84
HIERARCH ESO ISS PBL12 START 56.5
HIERARCH ESO ISS PBL12 END 56.488
HIERARCH ESO ISS PBLA12 START 35.3
HIERARCH ESO ISS PBLA12 END 35.3
HIERARCH ESO ISS PBL13 START 101.632
HIERARCH ESO ISS PBL13 END 101.57
HIERARCH ESO ISS PBLA13 START 39.7
HIERARCH ESO ISS PBLA13 END 39.7
HIERARCH ESO ISS PBL14 START 116.776
HIERARCH ESO ISS PBL14 END 116.396
HIERARCH ESO ISS PBLA14 START 61.312
HIERARCH ESO ISS PBLA14 END 61.228
HIERARCH ESO ISS PBL23 START 45.515
HIERARCH ESO ISS PBL23 END 45.46
HIERARCH ESO ISS PBLA23 START 45.2
HIERARCH ESO ISS PBLA23 END 45.2
HIERARCH ESO ISS PBL24 START 70.52
HIERARCH ESO ISS PBL24 END 70.111
HIERARCH ESO ISS PBLA24 START 81.907
HIERARCH ESO ISS PBLA24 END 81.878
HIERARCH ESO ISS PBL34 START 43.53
HIERARCH ESO ISS PBL34 END 43.24
HIERARCH ESO ISS PBLA34 START 120.528
HIERARCH ESO ISS PBLA34 END 120.772
HIERARCH ESO ISS AMBI TAU0 START 0.003216
HIERARCH ESO ISS AMBI TAU0 END 0.003484
HIERARCH ESO ISS AMBI TEMP 10.28
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.76
HIERARCH ESO FT ROBJ NAME 51_Eri
HIERARCH ESO FT ROBJ ALPHA 043736.133
HIERARCH ESO FT ROBJ DELTA -022824.775