Exposure
ID
GRAVI.2023-07-07T00:42:47.525_1
Header ID
GRAVI.2023-07-07T00:42:47.525
Date updated
2025-03-26 15:25:23 UTC+0000
Release date
2024-07-07 00:50:27 UTC+0000
UTC Start
2023-07-07 00:42:47.525
UTC End
2023-07-07 00:44:47.525
MJD Start
60132.02971672
MJD End
60132.03110560888
Exposure time (s)
120.0
Validation level
1
Tau 0: Coherence time (s)
0.003811
Ambient temperature (°C)
10.57
Seeing (arcsec)
0.77
Observation
ID
56163
Category
science
Program ID
108.220D.004
Program Title
TOWARDS DETECTION OF SINGLE BLACK HOLES BY MICROLENSING AND INTERFEROMETRY
Program Type
Monitoring
PI / COI
MÉRAND / DONG / GOULD / WOILLEZ / UDALSKI / MROZ
Target
ID
41609
Name
Gaia1731-3046
RA
262.929849
DEC
-30.77145
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-COMBINED
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.4290 56.4330 6.5000 6.8000
U1-U3 101.5760 101.6010 11.8000 12.2000
U1-U4 120.8840 121.1520 36.7270 37.2120
U2-U3 45.6850 45.7120 18.3000 18.7000
U2-U4 77.5420 77.8920 58.2380 58.7130
U3-U4 51.6400 51.9630 92.8400 93.1380
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.220D.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60132.02971672
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME KMT-2023-BLG-0025
HIERARCH ESO INS SOBJ NAME Gaia1731-3046
RA 262.929849
DEC -30.77145
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE COMBINED
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 150.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 120
HIERARCH ESO ISS PBL12 START 56.429
HIERARCH ESO ISS PBL12 END 56.433
HIERARCH ESO ISS PBLA12 START 6.5
HIERARCH ESO ISS PBLA12 END 6.8
HIERARCH ESO ISS PBL13 START 101.576
HIERARCH ESO ISS PBL13 END 101.601
HIERARCH ESO ISS PBLA13 START 11.8
HIERARCH ESO ISS PBLA13 END 12.2
HIERARCH ESO ISS PBL14 START 120.884
HIERARCH ESO ISS PBL14 END 121.152
HIERARCH ESO ISS PBLA14 START 36.727
HIERARCH ESO ISS PBLA14 END 37.212
HIERARCH ESO ISS PBL23 START 45.685
HIERARCH ESO ISS PBL23 END 45.712
HIERARCH ESO ISS PBLA23 START 18.3
HIERARCH ESO ISS PBLA23 END 18.7
HIERARCH ESO ISS PBL24 START 77.542
HIERARCH ESO ISS PBL24 END 77.892
HIERARCH ESO ISS PBLA24 START 58.238
HIERARCH ESO ISS PBLA24 END 58.713
HIERARCH ESO ISS PBL34 START 51.64
HIERARCH ESO ISS PBL34 END 51.963
HIERARCH ESO ISS PBLA34 START 92.84
HIERARCH ESO ISS PBLA34 END 93.138
HIERARCH ESO ISS AMBI TAU0 START 0.004024
HIERARCH ESO ISS AMBI TAU0 END 0.003598
HIERARCH ESO ISS AMBI TEMP 10.57
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.78
HIERARCH ESO FT ROBJ NAME KMT-2023-BLG-0025
HIERARCH ESO FT ROBJ ALPHA 173142.610
HIERARCH ESO FT ROBJ DELTA -304616.928