Exposure
ID
GRAVI.2023-09-28T23:37:55.930_1
Header ID
GRAVI.2023-09-28T23:37:55.930
Date updated
2025-03-26 15:25:23 UTC+0000
Release date
2024-09-28 23:50:39 UTC+0000
UTC Start
2023-09-28 23:37:55.930
UTC End
2023-09-28 23:43:55.930
MJD Start
60215.98467511
MJD End
60215.98884177666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0042685
Ambient temperature (°C)
13.31
Seeing (arcsec)
0.895
Observation
ID
57131
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
42353
Name
KB230496
RA
265.767366
DEC
-35.25673
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 53.0030 52.7330 36.5000 37.0000
U1-U3 95.1200 94.5220 43.1000 43.6000
U1-U4 118.6560 117.4690 73.5130 74.2580
U2-U3 42.9130 42.5840 51.3000 51.9000
U2-U4 82.7610 81.9840 96.2080 97.1830
U3-U4 60.4890 60.1990 126.2520 127.3700
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 60215.98467511
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME KB230496
HIERARCH ESO INS SOBJ NAME KB230496
RA 265.767366
DEC -35.25673
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 375.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 53.003
HIERARCH ESO ISS PBL12 END 52.733
HIERARCH ESO ISS PBLA12 START 36.5
HIERARCH ESO ISS PBLA12 END 37.0
HIERARCH ESO ISS PBL13 START 95.12
HIERARCH ESO ISS PBL13 END 94.522
HIERARCH ESO ISS PBLA13 START 43.1
HIERARCH ESO ISS PBLA13 END 43.6
HIERARCH ESO ISS PBL14 START 118.656
HIERARCH ESO ISS PBL14 END 117.469
HIERARCH ESO ISS PBLA14 START 73.513
HIERARCH ESO ISS PBLA14 END 74.258
HIERARCH ESO ISS PBL23 START 42.913
HIERARCH ESO ISS PBL23 END 42.584
HIERARCH ESO ISS PBLA23 START 51.3
HIERARCH ESO ISS PBLA23 END 51.9
HIERARCH ESO ISS PBL24 START 82.761
HIERARCH ESO ISS PBL24 END 81.984
HIERARCH ESO ISS PBLA24 START 96.208
HIERARCH ESO ISS PBLA24 END 97.183
HIERARCH ESO ISS PBL34 START 60.489
HIERARCH ESO ISS PBL34 END 60.199
HIERARCH ESO ISS PBLA34 START 126.252
HIERARCH ESO ISS PBLA34 END 127.37
HIERARCH ESO ISS AMBI TAU0 START 0.003996
HIERARCH ESO ISS AMBI TAU0 END 0.004541
HIERARCH ESO ISS AMBI TEMP 13.31
HIERARCH ESO ISS AMBI FWHM START 0.98
HIERARCH ESO ISS AMBI FWHM END 0.81
HIERARCH ESO FT ROBJ NAME 2MASS17430426-351519
HIERARCH ESO FT ROBJ ALPHA 174304.264
HIERARCH ESO FT ROBJ DELTA -351519.493