Exposure
ID
GRAVI.2025-07-10T05:15:16.546_1
Header ID
GRAVI.2025-07-10T05:15:16.546
Date updated
2025-07-10 05:30:47 UTC+0000
Release date
2026-07-10 05:30:47 UTC+0000
UTC Start
2025-07-10 05:15:16.546
UTC End
2025-07-10 05:21:16.546
MJD Start
60866.2189415
MJD End
60866.22310816667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0067565
Ambient temperature (°C)
13.65
Seeing (arcsec)
0.37
Observation
ID
68537
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
50972
Name
SGRA
RA
266.417607
DEC
-29.00788
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 53.8790 53.6190 36.5000 37.0000
U1-U3 96.3440 95.7460 42.8000 43.2000
U1-U4 116.8140 115.4290 72.5970 73.1690
U2-U3 43.1980 42.8540 50.7000 51.1000
U2-U4 79.8260 78.8160 96.0020 96.8660
U3-U4 58.1900 57.7410 127.8390 128.9730
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 60866.2189415
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417607
DEC -29.00788
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 53.879
HIERARCH ESO ISS PBL12 END 53.619
HIERARCH ESO ISS PBLA12 START 36.5
HIERARCH ESO ISS PBLA12 END 37.0
HIERARCH ESO ISS PBL13 START 96.344
HIERARCH ESO ISS PBL13 END 95.746
HIERARCH ESO ISS PBLA13 START 42.8
HIERARCH ESO ISS PBLA13 END 43.2
HIERARCH ESO ISS PBL14 START 116.814
HIERARCH ESO ISS PBL14 END 115.429
HIERARCH ESO ISS PBLA14 START 72.597
HIERARCH ESO ISS PBLA14 END 73.169
HIERARCH ESO ISS PBL23 START 43.198
HIERARCH ESO ISS PBL23 END 42.854
HIERARCH ESO ISS PBLA23 START 50.7
HIERARCH ESO ISS PBLA23 END 51.1
HIERARCH ESO ISS PBL24 START 79.826
HIERARCH ESO ISS PBL24 END 78.816
HIERARCH ESO ISS PBLA24 START 96.002
HIERARCH ESO ISS PBLA24 END 96.866
HIERARCH ESO ISS PBL34 START 58.19
HIERARCH ESO ISS PBL34 END 57.741
HIERARCH ESO ISS PBLA34 START 127.839
HIERARCH ESO ISS PBLA34 END 128.973
HIERARCH ESO ISS AMBI TAU0 START 0.006908
HIERARCH ESO ISS AMBI TAU0 END 0.006605
HIERARCH ESO ISS AMBI TEMP 13.65
HIERARCH ESO ISS AMBI FWHM START 0.37
HIERARCH ESO ISS AMBI FWHM END 0.37
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520