Exposure
ID
GRAVI.2025-11-06T09:15:09.607_1
Header ID
GRAVI.2025-11-06T09:15:09.607
Date updated
2025-11-06 09:26:22 UTC+0000
Release date
2026-11-06 09:26:22 UTC+0000
UTC Start
2025-11-06 09:15:09.607
UTC End
2025-11-06 09:16:33.607
MJD Start
60985.38552786
MJD End
60985.386500082226
Exposure time (s)
84.0
Validation level
1
Tau 0: Coherence time (s)
0.00315
Ambient temperature (°C)
10.02
Seeing (arcsec)
0.825
Observation
ID
71193
Category
science
Program ID
116.29H7.001
Program Title
GPAO COMMISSIONING
Program Type
Normal
PI / COI
TEAM
Target
ID
52860
Name
51_Eri
RA
69.402831
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 56.4000 56.3810 35.2000 35.2000
U1-U3 101.1710 101.0930 39.5000 39.5000
U1-U4 114.1380 113.7240 60.7090 60.6100
U2-U3 45.1250 45.0620 44.9000 44.8000
U2-U4 67.7040 67.2670 81.6930 81.6570
U3-U4 41.5720 41.2750 122.2580 122.5370
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 60985.38552786
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME 51 Eri
HIERARCH ESO INS SOBJ NAME 51_Eri
RA 69.402831
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 56.4
HIERARCH ESO ISS PBL12 END 56.381
HIERARCH ESO ISS PBLA12 START 35.2
HIERARCH ESO ISS PBLA12 END 35.2
HIERARCH ESO ISS PBL13 START 101.171
HIERARCH ESO ISS PBL13 END 101.093
HIERARCH ESO ISS PBLA13 START 39.5
HIERARCH ESO ISS PBLA13 END 39.5
HIERARCH ESO ISS PBL14 START 114.138
HIERARCH ESO ISS PBL14 END 113.724
HIERARCH ESO ISS PBLA14 START 60.709
HIERARCH ESO ISS PBLA14 END 60.61
HIERARCH ESO ISS PBL23 START 45.125
HIERARCH ESO ISS PBL23 END 45.062
HIERARCH ESO ISS PBLA23 START 44.9
HIERARCH ESO ISS PBLA23 END 44.8
HIERARCH ESO ISS PBL24 START 67.704
HIERARCH ESO ISS PBL24 END 67.267
HIERARCH ESO ISS PBLA24 START 81.693
HIERARCH ESO ISS PBLA24 END 81.657
HIERARCH ESO ISS PBL34 START 41.572
HIERARCH ESO ISS PBL34 END 41.275
HIERARCH ESO ISS PBLA34 START 122.258
HIERARCH ESO ISS PBLA34 END 122.537
HIERARCH ESO ISS AMBI TAU0 START 0.00315
HIERARCH ESO ISS AMBI TAU0 END 0.00315
HIERARCH ESO ISS AMBI TEMP 10.02
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.84
HIERARCH ESO FT ROBJ NAME 51_Eri
HIERARCH ESO FT ROBJ ALPHA 043736.133
HIERARCH ESO FT ROBJ DELTA -022824.775