Exposure
ID
GRAVI.2025-12-08T03:48:26.969_1
Header ID
GRAVI.2025-12-08T03:48:26.969
Date updated
2025-12-08 04:01:03 UTC+0000
Release date
2026-12-08 04:01:03 UTC+0000
UTC Start
2025-12-08 03:48:26.969
UTC End
2025-12-08 03:51:06.969
MJD Start
61017.15864547
MJD End
61017.16049732186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0035485
Ambient temperature (°C)
11.33
Seeing (arcsec)
0.97
Observation
ID
72038
Category
science
Program ID
116.29H7.001
Program Title
GPAO COMMISSIONING
Program Type
Normal
PI / COI
TEAM
Target
ID
53499
Name
V_HL_Tau
RA
67.912961
DEC
18.23236
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 43.3270 43.5640 32.2000 32.5000
U1-U3 80.9200 81.4090 39.9000 40.1000
U1-U4 119.3890 119.9690 68.1750 68.0560
U2-U3 38.4150 38.6550 48.5000 48.6000
U2-U4 88.0550 88.2380 84.9590 84.7390
U3-U4 61.5240 61.3930 106.7150 106.5210
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 61017.15864547
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V HL Tau
HIERARCH ESO INS SOBJ NAME V_HL_Tau
RA 67.912961
DEC 18.23236
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 43.327
HIERARCH ESO ISS PBL12 END 43.564
HIERARCH ESO ISS PBLA12 START 32.2
HIERARCH ESO ISS PBLA12 END 32.5
HIERARCH ESO ISS PBL13 START 80.92
HIERARCH ESO ISS PBL13 END 81.409
HIERARCH ESO ISS PBLA13 START 39.9
HIERARCH ESO ISS PBLA13 END 40.1
HIERARCH ESO ISS PBL14 START 119.389
HIERARCH ESO ISS PBL14 END 119.969
HIERARCH ESO ISS PBLA14 START 68.175
HIERARCH ESO ISS PBLA14 END 68.056
HIERARCH ESO ISS PBL23 START 38.415
HIERARCH ESO ISS PBL23 END 38.655
HIERARCH ESO ISS PBLA23 START 48.5
HIERARCH ESO ISS PBLA23 END 48.6
HIERARCH ESO ISS PBL24 START 88.055
HIERARCH ESO ISS PBL24 END 88.238
HIERARCH ESO ISS PBLA24 START 84.959
HIERARCH ESO ISS PBLA24 END 84.739
HIERARCH ESO ISS PBL34 START 61.524
HIERARCH ESO ISS PBL34 END 61.393
HIERARCH ESO ISS PBLA34 START 106.715
HIERARCH ESO ISS PBLA34 END 106.521
HIERARCH ESO ISS AMBI TAU0 START 0.003261
HIERARCH ESO ISS AMBI TAU0 END 0.003836
HIERARCH ESO ISS AMBI TEMP 11.33
HIERARCH ESO ISS AMBI FWHM START 1.04
HIERARCH ESO ISS AMBI FWHM END 0.9