Exposure
ID
GRAVI.2025-07-15T00:18:31.675_1
Header ID
GRAVI.2025-07-15T00:18:31.675
Date updated
2025-07-15 00:35:51 UTC+0000
Release date
2025-07-15 00:18:31 UTC+0000
UTC Start
2025-07-15 00:18:31.675
UTC End
2025-07-15 00:24:31.675
MJD Start
60871.01286661
MJD End
60871.017033276665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.004377
Ambient temperature (°C)
12.96
Seeing (arcsec)
0.56
Observation
ID
68771
Category
calibrator
Program ID
115.281B.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
51168
Name
HD99844
RA
172.160144
DEC
-54.16934
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 89.2470 89.1580 158.1000 159.5000
A0-J2 115.5980 115.0250 141.4000 143.0000
A0-K0 97.7120 96.5770 120.9190 122.6100
G1-J2 39.5600 38.8850 101.0000 102.5000
G1-K0 60.1500 59.2300 57.1880 57.9030
J2-K0 41.8130 41.6980 16.2750 17.0250
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.281B.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60871.01286661
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 99844
HIERARCH ESO INS SOBJ NAME HD99844
RA 172.160144
DEC -54.16934
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 89.247
HIERARCH ESO ISS PBL12 END 89.158
HIERARCH ESO ISS PBLA12 START 158.1
HIERARCH ESO ISS PBLA12 END 159.5
HIERARCH ESO ISS PBL13 START 115.598
HIERARCH ESO ISS PBL13 END 115.025
HIERARCH ESO ISS PBLA13 START 141.4
HIERARCH ESO ISS PBLA13 END 143.0
HIERARCH ESO ISS PBL14 START 97.712
HIERARCH ESO ISS PBL14 END 96.577
HIERARCH ESO ISS PBLA14 START 120.919
HIERARCH ESO ISS PBLA14 END 122.61
HIERARCH ESO ISS PBL23 START 39.56
HIERARCH ESO ISS PBL23 END 38.885
HIERARCH ESO ISS PBLA23 START 101.0
HIERARCH ESO ISS PBLA23 END 102.5
HIERARCH ESO ISS PBL24 START 60.15
HIERARCH ESO ISS PBL24 END 59.23
HIERARCH ESO ISS PBLA24 START 57.188
HIERARCH ESO ISS PBLA24 END 57.903
HIERARCH ESO ISS PBL34 START 41.813
HIERARCH ESO ISS PBL34 END 41.698
HIERARCH ESO ISS PBLA34 START 16.275
HIERARCH ESO ISS PBLA34 END 17.025
HIERARCH ESO ISS AMBI TAU0 START 0.004442
HIERARCH ESO ISS AMBI TAU0 END 0.004312
HIERARCH ESO ISS AMBI TEMP 12.96
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.57