Exposure
ID
GRAVI.2025-10-31T06:45:57.298_1
Header ID
GRAVI.2025-10-31T06:45:57.298
Date updated
2025-10-31 07:00:48 UTC+0000
Release date
2025-10-31 06:45:57 UTC+0000
UTC Start
2025-10-31 06:45:57.298
UTC End
2025-10-31 06:51:57.298
MJD Start
60979.28191317
MJD End
60979.28607983667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0035865000000000003
Ambient temperature (°C)
12.54
Seeing (arcsec)
0.5549999999999999
Observation
ID
70896
Category
calibrator
Program ID
116.28R6.001
Program Title
TRACING VARIABILITY AT THE INNER ASTRONOMICAL UNITS IN PROTOPLANETARY DISKS WITH GRAVITY
Program Type
GTO
PI / COI
SANCHEZ / GARCIA LOPEZ / CARATTI O GARATTI / ROUSSELET-PERRAUT / GARCIA / BENISTY / LABADIE / BRANDNER / HENNING / KEPPLER / VAN BOEKEL / PFUHL / ECKART / EISENHAUER / LACOUR / MENARD / PAUMARD / PERRIN / STRAUBMEIER / VAN DISHOECK / BOUVIER / DOUGADOS /
Target
ID
52605
Name
HD_31317
RA
73.645599
DEC
-1.79522
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.8270 89.5210 113.9000 114.1000
A0-J2 129.1610 129.2330 92.5000 92.6000
A0-K0 125.9720 126.5200 72.1870 72.3190
G1-J2 56.1340 56.4750 56.7000 57.0000
G1-K0 83.9870 84.4010 26.7690 27.3740
J2-K0 45.1210 45.0230 348.3560 349.0360
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28R6.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60979.28191317
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 31317
HIERARCH ESO INS SOBJ NAME HD_31317
RA 73.645599
DEC -1.79522
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
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 377.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 89.827
HIERARCH ESO ISS PBL12 END 89.521
HIERARCH ESO ISS PBLA12 START 113.9
HIERARCH ESO ISS PBLA12 END 114.1
HIERARCH ESO ISS PBL13 START 129.161
HIERARCH ESO ISS PBL13 END 129.233
HIERARCH ESO ISS PBLA13 START 92.5
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 125.972
HIERARCH ESO ISS PBL14 END 126.52
HIERARCH ESO ISS PBLA14 START 72.187
HIERARCH ESO ISS PBLA14 END 72.319
HIERARCH ESO ISS PBL23 START 56.134
HIERARCH ESO ISS PBL23 END 56.475
HIERARCH ESO ISS PBLA23 START 56.7
HIERARCH ESO ISS PBLA23 END 57.0
HIERARCH ESO ISS PBL24 START 83.987
HIERARCH ESO ISS PBL24 END 84.401
HIERARCH ESO ISS PBLA24 START 26.769
HIERARCH ESO ISS PBLA24 END 27.374
HIERARCH ESO ISS PBL34 START 45.121
HIERARCH ESO ISS PBL34 END 45.023
HIERARCH ESO ISS PBLA34 START 348.356
HIERARCH ESO ISS PBLA34 END 349.036
HIERARCH ESO ISS AMBI TAU0 START 0.003455
HIERARCH ESO ISS AMBI TAU0 END 0.003718
HIERARCH ESO ISS AMBI TEMP 12.54
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.51