Exposure
ID
GRAVI.2025-12-08T04:04:33.010_1
Header ID
GRAVI.2025-12-08T04:04:33.010
Date updated
2025-12-08 04:16:08 UTC+0000
Release date
2026-12-08 04:16:08 UTC+0000
UTC Start
2025-12-08 04:04:33.010
UTC End
2025-12-08 04:07:13.010
MJD Start
61017.1698265
MJD End
61017.17167835186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0037105000000000003
Ambient temperature (°C)
11.54
Seeing (arcsec)
0.985
Observation
ID
72041
Category
science
Program ID
116.29H7.001
Program Title
GPAO COMMISSIONING
Program Type
Normal
PI / COI
TEAM
Target
ID
53502
Name
V_HL_Tau
RA
67.912988
DEC
18.23234
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 44.6170 44.8480 33.6000 33.8000
U1-U3 83.5580 84.0220 40.8000 40.9000
U1-U4 122.3710 122.8580 67.4870 67.3540
U2-U3 39.6930 39.9130 48.9000 49.0000
U2-U4 88.8970 89.0080 83.7490 83.5290
U3-U4 60.7040 60.5290 105.6750 105.4930
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.29H7.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 61017.1698265
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V HL Tau
HIERARCH ESO INS SOBJ NAME V_HL_Tau
RA 67.912988
DEC 18.23234
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 44.617
HIERARCH ESO ISS PBL12 END 44.848
HIERARCH ESO ISS PBLA12 START 33.6
HIERARCH ESO ISS PBLA12 END 33.8
HIERARCH ESO ISS PBL13 START 83.558
HIERARCH ESO ISS PBL13 END 84.022
HIERARCH ESO ISS PBLA13 START 40.8
HIERARCH ESO ISS PBLA13 END 40.9
HIERARCH ESO ISS PBL14 START 122.371
HIERARCH ESO ISS PBL14 END 122.858
HIERARCH ESO ISS PBLA14 START 67.487
HIERARCH ESO ISS PBLA14 END 67.354
HIERARCH ESO ISS PBL23 START 39.693
HIERARCH ESO ISS PBL23 END 39.913
HIERARCH ESO ISS PBLA23 START 48.9
HIERARCH ESO ISS PBLA23 END 49.0
HIERARCH ESO ISS PBL24 START 88.897
HIERARCH ESO ISS PBL24 END 89.008
HIERARCH ESO ISS PBLA24 START 83.749
HIERARCH ESO ISS PBLA24 END 83.529
HIERARCH ESO ISS PBL34 START 60.704
HIERARCH ESO ISS PBL34 END 60.529
HIERARCH ESO ISS PBLA34 START 105.675
HIERARCH ESO ISS PBLA34 END 105.493
HIERARCH ESO ISS AMBI TAU0 START 0.003929
HIERARCH ESO ISS AMBI TAU0 END 0.003492
HIERARCH ESO ISS AMBI TEMP 11.54
HIERARCH ESO ISS AMBI FWHM START 0.96
HIERARCH ESO ISS AMBI FWHM END 1.01