Exposure
ID
GRAVI.2025-07-08T04:00:47.613_1
Header ID
GRAVI.2025-07-08T04:00:47.613
Date updated
2025-07-08 04:15:39 UTC+0000
Release date
2026-07-08 04:15:39 UTC+0000
UTC Start
2025-07-08 04:00:47.613
UTC End
2025-07-08 04:06:47.613
MJD Start
60864.16721774
MJD End
60864.17138440667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0108285
Ambient temperature (°C)
15.93
Seeing (arcsec)
0.27
Observation
ID
68384
Category
science
Program ID
115.27WT.003
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
50819
Name
SGRA
RA
266.416468
DEC
-29.00733
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 56.0390 55.9390 29.9000 30.5000
U1-U3 101.3560 101.1270 36.3000 36.9000
U1-U4 128.4550 127.9460 64.6300 65.3110
U2-U3 46.0870 45.9560 44.0000 44.7000
U2-U4 88.3820 88.0180 85.8140 86.5860
U3-U4 62.1350 61.9750 115.4320 116.2900
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60864.16721774
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416468
DEC -29.00733
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 56.039
HIERARCH ESO ISS PBL12 END 55.939
HIERARCH ESO ISS PBLA12 START 29.9
HIERARCH ESO ISS PBLA12 END 30.5
HIERARCH ESO ISS PBL13 START 101.356
HIERARCH ESO ISS PBL13 END 101.127
HIERARCH ESO ISS PBLA13 START 36.3
HIERARCH ESO ISS PBLA13 END 36.9
HIERARCH ESO ISS PBL14 START 128.455
HIERARCH ESO ISS PBL14 END 127.946
HIERARCH ESO ISS PBLA14 START 64.63
HIERARCH ESO ISS PBLA14 END 65.311
HIERARCH ESO ISS PBL23 START 46.087
HIERARCH ESO ISS PBL23 END 45.956
HIERARCH ESO ISS PBLA23 START 44.0
HIERARCH ESO ISS PBLA23 END 44.7
HIERARCH ESO ISS PBL24 START 88.382
HIERARCH ESO ISS PBL24 END 88.018
HIERARCH ESO ISS PBLA24 START 85.814
HIERARCH ESO ISS PBLA24 END 86.586
HIERARCH ESO ISS PBL34 START 62.135
HIERARCH ESO ISS PBL34 END 61.975
HIERARCH ESO ISS PBLA34 START 115.432
HIERARCH ESO ISS PBLA34 END 116.29
HIERARCH ESO ISS AMBI TAU0 START 0.009597
HIERARCH ESO ISS AMBI TAU0 END 0.01206
HIERARCH ESO ISS AMBI TEMP 15.93
HIERARCH ESO ISS AMBI FWHM START 0.29
HIERARCH ESO ISS AMBI FWHM END 0.25
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520