Exposure
ID
GRAVI.2025-12-08T03:40:20.949_1
Header ID
GRAVI.2025-12-08T03:40:20.949
Date updated
2025-12-08 03:50:37 UTC+0000
Release date
2026-12-08 03:50:37 UTC+0000
UTC Start
2025-12-08 03:40:20.949
UTC End
2025-12-08 03:43:00.949
MJD Start
61017.15302024
MJD End
61017.15487209186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004318499999999999
Ambient temperature (°C)
11.48
Seeing (arcsec)
0.835
Observation
ID
72037
Category
science
Program ID
116.29H7.001
Program Title
GPAO COMMISSIONING
Program Type
Normal
PI / COI
TEAM
Target
ID
53498
Name
V_HL_Tau
RA
67.912923
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 42.6750 42.9090 31.5000 31.8000
U1-U3 79.5540 80.0450 39.4000 39.6000
U1-U4 117.7060 118.3230 68.4880 68.3780
U2-U3 37.7370 37.9820 48.3000 48.4000
U2-U4 87.4820 87.6990 85.5640 85.3480
U3-U4 61.8410 61.7350 107.2620 107.0640
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 61017.15302024
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V HL Tau
HIERARCH ESO INS SOBJ NAME V_HL_Tau
RA 67.912923
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 42.675
HIERARCH ESO ISS PBL12 END 42.909
HIERARCH ESO ISS PBLA12 START 31.5
HIERARCH ESO ISS PBLA12 END 31.8
HIERARCH ESO ISS PBL13 START 79.554
HIERARCH ESO ISS PBL13 END 80.045
HIERARCH ESO ISS PBLA13 START 39.4
HIERARCH ESO ISS PBLA13 END 39.6
HIERARCH ESO ISS PBL14 START 117.706
HIERARCH ESO ISS PBL14 END 118.323
HIERARCH ESO ISS PBLA14 START 68.488
HIERARCH ESO ISS PBLA14 END 68.378
HIERARCH ESO ISS PBL23 START 37.737
HIERARCH ESO ISS PBL23 END 37.982
HIERARCH ESO ISS PBLA23 START 48.3
HIERARCH ESO ISS PBLA23 END 48.4
HIERARCH ESO ISS PBL24 START 87.482
HIERARCH ESO ISS PBL24 END 87.699
HIERARCH ESO ISS PBLA24 START 85.564
HIERARCH ESO ISS PBLA24 END 85.348
HIERARCH ESO ISS PBL34 START 61.841
HIERARCH ESO ISS PBL34 END 61.735
HIERARCH ESO ISS PBLA34 START 107.262
HIERARCH ESO ISS PBLA34 END 107.064
HIERARCH ESO ISS AMBI TAU0 START 0.004234
HIERARCH ESO ISS AMBI TAU0 END 0.004403
HIERARCH ESO ISS AMBI TEMP 11.48
HIERARCH ESO ISS AMBI FWHM START 0.84
HIERARCH ESO ISS AMBI FWHM END 0.83