Exposure
ID
GRAVI.2025-12-10T07:30:48.006_1
Header ID
GRAVI.2025-12-10T07:30:48.006
Date updated
2025-12-10 07:46:23 UTC+0000
Release date
2025-12-10 07:30:48 UTC+0000
UTC Start
2025-12-10 07:30:48.006
UTC End
2025-12-10 07:36:48.006
MJD Start
61019.31305562
MJD End
61019.31722228666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0041435
Ambient temperature (°C)
12.54
Seeing (arcsec)
0.88
Observation
ID
72120
Category
calibrator
Program ID
116.28R6.002
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
53554
Name
HD_99821
RA
172.116044
DEC
-54.34348
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 67.8350 68.7370 71.2000 72.7000
A0-J2 113.4730 114.2020 47.5000 49.1000
A0-K0 124.3990 124.6430 30.4450 31.9080
G1-J2 58.1970 58.2070 19.5000 20.8000
G1-K0 85.4190 85.4220 359.2070 0.1640
J2-K0 36.8330 37.1130 326.0250 326.6520
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28R6.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 61019.31305562
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 99821
HIERARCH ESO INS SOBJ NAME HD_99821
RA 172.116044
DEC -54.34348
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 67.835
HIERARCH ESO ISS PBL12 END 68.737
HIERARCH ESO ISS PBLA12 START 71.2
HIERARCH ESO ISS PBLA12 END 72.7
HIERARCH ESO ISS PBL13 START 113.473
HIERARCH ESO ISS PBL13 END 114.202
HIERARCH ESO ISS PBLA13 START 47.5
HIERARCH ESO ISS PBLA13 END 49.1
HIERARCH ESO ISS PBL14 START 124.399
HIERARCH ESO ISS PBL14 END 124.643
HIERARCH ESO ISS PBLA14 START 30.445
HIERARCH ESO ISS PBLA14 END 31.908
HIERARCH ESO ISS PBL23 START 58.197
HIERARCH ESO ISS PBL23 END 58.207
HIERARCH ESO ISS PBLA23 START 19.5
HIERARCH ESO ISS PBLA23 END 20.8
HIERARCH ESO ISS PBL24 START 85.419
HIERARCH ESO ISS PBL24 END 85.422
HIERARCH ESO ISS PBLA24 START 359.207
HIERARCH ESO ISS PBLA24 END 0.164
HIERARCH ESO ISS PBL34 START 36.833
HIERARCH ESO ISS PBL34 END 37.113
HIERARCH ESO ISS PBLA34 START 326.025
HIERARCH ESO ISS PBLA34 END 326.652
HIERARCH ESO ISS AMBI TAU0 START 0.004192
HIERARCH ESO ISS AMBI TAU0 END 0.004095
HIERARCH ESO ISS AMBI TEMP 12.54
HIERARCH ESO ISS AMBI FWHM START 0.93
HIERARCH ESO ISS AMBI FWHM END 0.83