Exposure
ID
GRAVI.2025-10-31T05:43:33.140_1
Header ID
GRAVI.2025-10-31T05:43:33.140
Date updated
2025-10-31 05:55:52 UTC+0000
Release date
2025-10-31 05:43:33 UTC+0000
UTC Start
2025-10-31 05:43:33.140
UTC End
2025-10-31 05:49:33.140
MJD Start
60979.23857801
MJD End
60979.24274467667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.004597
Ambient temperature (°C)
13.06
Seeing (arcsec)
0.36
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 89.7750 90.0370 113.5000 113.4000
A0-J2 123.2070 124.2340 92.1000 92.2000
A0-K0 116.0200 117.3810 70.0940 70.3820
G1-J2 51.3160 51.9080 52.6000 53.2000
G1-K0 79.8650 80.2620 19.5560 20.3860
J2-K0 46.2750 46.1500 342.3430 342.8870
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 60979.23857801
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 89.775
HIERARCH ESO ISS PBL12 END 90.037
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.4
HIERARCH ESO ISS PBL13 START 123.207
HIERARCH ESO ISS PBL13 END 124.234
HIERARCH ESO ISS PBLA13 START 92.1
HIERARCH ESO ISS PBLA13 END 92.2
HIERARCH ESO ISS PBL14 START 116.02
HIERARCH ESO ISS PBL14 END 117.381
HIERARCH ESO ISS PBLA14 START 70.094
HIERARCH ESO ISS PBLA14 END 70.382
HIERARCH ESO ISS PBL23 START 51.316
HIERARCH ESO ISS PBL23 END 51.908
HIERARCH ESO ISS PBLA23 START 52.6
HIERARCH ESO ISS PBLA23 END 53.2
HIERARCH ESO ISS PBL24 START 79.865
HIERARCH ESO ISS PBL24 END 80.262
HIERARCH ESO ISS PBLA24 START 19.556
HIERARCH ESO ISS PBLA24 END 20.386
HIERARCH ESO ISS PBL34 START 46.275
HIERARCH ESO ISS PBL34 END 46.15
HIERARCH ESO ISS PBLA34 START 342.343
HIERARCH ESO ISS PBLA34 END 342.887
HIERARCH ESO ISS AMBI TAU0 START 0.005278
HIERARCH ESO ISS AMBI TAU0 END 0.003916
HIERARCH ESO ISS AMBI TEMP 13.06
HIERARCH ESO ISS AMBI FWHM START 0.33
HIERARCH ESO ISS AMBI FWHM END 0.39