Exposure
ID
GRAVI.2025-05-13T05:47:19.623_1
Header ID
GRAVI.2025-05-13T05:47:19.623
Date updated
2025-05-13 06:56:31 UTC+0000
Release date
2026-05-13 06:56:30 UTC+0000
UTC Start
2025-05-13 05:47:19.623
UTC End
2025-05-13 05:53:19.623
MJD Start
60808.24119934
MJD End
60808.24536600667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008387499999999999
Ambient temperature (°C)
16.77
Seeing (arcsec)
0.495
Observation
ID
67321
Category
science
Program ID
115.27WT.001
Program Title
THE GALACTIC CENTER WITH GRAVITY(+) - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
ID
50062
Name
SGRA
RA
266.416198
DEC
-29.00741
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.5170 56.5310 17.0000 17.8000
U1-U3 102.1690 102.2360 23.0000 23.9000
U1-U4 127.5350 128.0130 50.3290 51.2860
U2-U3 46.3550 46.4160 30.4000 31.3000
U2-U4 86.1350 86.6740 71.4810 72.3790
U3-U4 59.5470 59.9830 102.2290 102.9170
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60808.24119934
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416198
DEC -29.00741
HIERARCH ESO INS SPEC RES LOW
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 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 56.517
HIERARCH ESO ISS PBL12 END 56.531
HIERARCH ESO ISS PBLA12 START 17.0
HIERARCH ESO ISS PBLA12 END 17.8
HIERARCH ESO ISS PBL13 START 102.169
HIERARCH ESO ISS PBL13 END 102.236
HIERARCH ESO ISS PBLA13 START 23.0
HIERARCH ESO ISS PBLA13 END 23.9
HIERARCH ESO ISS PBL14 START 127.535
HIERARCH ESO ISS PBL14 END 128.013
HIERARCH ESO ISS PBLA14 START 50.329
HIERARCH ESO ISS PBLA14 END 51.286
HIERARCH ESO ISS PBL23 START 46.355
HIERARCH ESO ISS PBL23 END 46.416
HIERARCH ESO ISS PBLA23 START 30.4
HIERARCH ESO ISS PBLA23 END 31.3
HIERARCH ESO ISS PBL24 START 86.135
HIERARCH ESO ISS PBL24 END 86.674
HIERARCH ESO ISS PBLA24 START 71.481
HIERARCH ESO ISS PBLA24 END 72.379
HIERARCH ESO ISS PBL34 START 59.547
HIERARCH ESO ISS PBL34 END 59.983
HIERARCH ESO ISS PBLA34 START 102.229
HIERARCH ESO ISS PBLA34 END 102.917
HIERARCH ESO ISS AMBI TAU0 START 0.008066
HIERARCH ESO ISS AMBI TAU0 END 0.008709
HIERARCH ESO ISS AMBI TEMP 16.77
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.45
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530