Exposure
ID
GRAVI.2025-06-10T05:38:29.530_1
Header ID
GRAVI.2025-06-10T05:38:29.530
Date updated
2025-06-10 05:50:38 UTC+0000
Release date
2026-06-10 05:50:38 UTC+0000
UTC Start
2025-06-10 05:38:29.530
UTC End
2025-06-10 05:44:29.530
MJD Start
60836.23506401
MJD End
60836.23923067666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.004923500000000001
Ambient temperature (°C)
12.8
Seeing (arcsec)
0.7050000000000001
Observation
ID
67890
Category
science
Program ID
115.27WT.002
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
50488
Name
SGRA
RA
266.416833
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 56.2010 56.1210 28.7000 29.3000
U1-U3 101.7270 101.5440 35.1000 35.7000
U1-U4 129.2460 128.8640 63.3070 64.0070
U2-U3 46.2960 46.1940 42.8000 43.5000
U2-U4 88.9270 88.6670 84.3500 85.1190
U3-U4 62.3560 62.2540 113.8440 114.6700
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60836.23506401
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416833
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 56.201
HIERARCH ESO ISS PBL12 END 56.121
HIERARCH ESO ISS PBLA12 START 28.7
HIERARCH ESO ISS PBLA12 END 29.3
HIERARCH ESO ISS PBL13 START 101.727
HIERARCH ESO ISS PBL13 END 101.544
HIERARCH ESO ISS PBLA13 START 35.1
HIERARCH ESO ISS PBLA13 END 35.7
HIERARCH ESO ISS PBL14 START 129.246
HIERARCH ESO ISS PBL14 END 128.864
HIERARCH ESO ISS PBLA14 START 63.307
HIERARCH ESO ISS PBLA14 END 64.007
HIERARCH ESO ISS PBL23 START 46.296
HIERARCH ESO ISS PBL23 END 46.194
HIERARCH ESO ISS PBLA23 START 42.8
HIERARCH ESO ISS PBLA23 END 43.5
HIERARCH ESO ISS PBL24 START 88.927
HIERARCH ESO ISS PBL24 END 88.667
HIERARCH ESO ISS PBLA24 START 84.35
HIERARCH ESO ISS PBLA24 END 85.119
HIERARCH ESO ISS PBL34 START 62.356
HIERARCH ESO ISS PBL34 END 62.254
HIERARCH ESO ISS PBLA34 START 113.844
HIERARCH ESO ISS PBLA34 END 114.67
HIERARCH ESO ISS AMBI TAU0 START 0.004812
HIERARCH ESO ISS AMBI TAU0 END 0.005035
HIERARCH ESO ISS AMBI TEMP 12.8
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.77
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530