Exposure
ID
GRAVI.2025-09-30T23:38:34.047_1
Header ID
GRAVI.2025-09-30T23:38:34.047
Date updated
2025-09-30 23:46:03 UTC+0000
Release date
2025-09-30 23:38:34 UTC+0000
UTC Start
2025-09-30 23:38:34.047
UTC End
2025-09-30 23:38:53.247
MJD Start
60948.98511629
MJD End
60948.985338512226
Exposure time (s)
19.2
Validation level
1
Tau 0: Coherence time (s)
0.009732
Ambient temperature (°C)
12.55
Seeing (arcsec)
0.65
Observation
ID
70516
Category
calibrator
Program ID
60.A-9256(A)
Program Title
CALIBRATION RUN FOR GRAVITY
Program Type
Normal
PI / COI
OBSERVATORY
Target
ID
52289
Name
HD_189140
RA
300.107494
DEC
-43.04324
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 88.4600 88.5050 110.8000 111.0000
A0-J2 128.6340 128.6650 88.3000 88.5000
A0-K0 127.9370 127.9280 67.6910 67.8260
G1-J2 57.8440 57.8300 52.5000 52.7000
G1-K0 87.6340 87.6100 24.0350 24.1370
J2-K0 45.9980 46.0070 347.1670 347.2540
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 60.A-9256(A)
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60948.98511629
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 189140
HIERARCH ESO INS SOBJ NAME HD_189140
RA 300.107494
DEC -43.04324
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 50.0
HIERARCH ESO DET2 SEQ1 DIT 0.3
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 88.46
HIERARCH ESO ISS PBL12 END 88.505
HIERARCH ESO ISS PBLA12 START 110.8
HIERARCH ESO ISS PBLA12 END 111.0
HIERARCH ESO ISS PBL13 START 128.634
HIERARCH ESO ISS PBL13 END 128.665
HIERARCH ESO ISS PBLA13 START 88.3
HIERARCH ESO ISS PBLA13 END 88.5
HIERARCH ESO ISS PBL14 START 127.937
HIERARCH ESO ISS PBL14 END 127.928
HIERARCH ESO ISS PBLA14 START 67.691
HIERARCH ESO ISS PBLA14 END 67.826
HIERARCH ESO ISS PBL23 START 57.844
HIERARCH ESO ISS PBL23 END 57.83
HIERARCH ESO ISS PBLA23 START 52.5
HIERARCH ESO ISS PBLA23 END 52.7
HIERARCH ESO ISS PBL24 START 87.634
HIERARCH ESO ISS PBL24 END 87.61
HIERARCH ESO ISS PBLA24 START 24.035
HIERARCH ESO ISS PBLA24 END 24.137
HIERARCH ESO ISS PBL34 START 45.998
HIERARCH ESO ISS PBL34 END 46.007
HIERARCH ESO ISS PBLA34 START 347.167
HIERARCH ESO ISS PBLA34 END 347.254
HIERARCH ESO ISS AMBI TAU0 START 0.009732
HIERARCH ESO ISS AMBI TAU0 END 0.009732
HIERARCH ESO ISS AMBI TEMP 12.55
HIERARCH ESO ISS AMBI FWHM START 0.65
HIERARCH ESO ISS AMBI FWHM END 0.65