Exposure
ID
GRAVI.2025-06-10T03:48:44.251_1
Header ID
GRAVI.2025-06-10T03:48:44.251
Date updated
2025-06-10 04:05:45 UTC+0000
Release date
2026-06-10 04:05:44 UTC+0000
UTC Start
2025-06-10 03:48:44.251
UTC End
2025-06-10 03:54:44.251
MJD Start
60836.1588455
MJD End
60836.16301216667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0050620000000000005
Ambient temperature (°C)
13.53
Seeing (arcsec)
0.7250000000000001
Observation
ID
67878
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
50476
Name
SGRA
RA
266.41653
DEC
-29.00738
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 56.4940 56.5110 15.9000 16.7000
U1-U3 102.0700 102.1460 21.9000 22.8000
U1-U4 126.8430 127.3740 49.0310 50.0210
U2-U3 46.2650 46.3340 29.2000 30.1000
U2-U4 85.3530 85.9530 70.2650 71.1920
U3-U4 58.9140 59.4000 101.3220 102.0110
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 60836.1588455
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41653
DEC -29.00738
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 56.494
HIERARCH ESO ISS PBL12 END 56.511
HIERARCH ESO ISS PBLA12 START 15.9
HIERARCH ESO ISS PBLA12 END 16.7
HIERARCH ESO ISS PBL13 START 102.07
HIERARCH ESO ISS PBL13 END 102.146
HIERARCH ESO ISS PBLA13 START 21.9
HIERARCH ESO ISS PBLA13 END 22.8
HIERARCH ESO ISS PBL14 START 126.843
HIERARCH ESO ISS PBL14 END 127.374
HIERARCH ESO ISS PBLA14 START 49.031
HIERARCH ESO ISS PBLA14 END 50.021
HIERARCH ESO ISS PBL23 START 46.265
HIERARCH ESO ISS PBL23 END 46.334
HIERARCH ESO ISS PBLA23 START 29.2
HIERARCH ESO ISS PBLA23 END 30.1
HIERARCH ESO ISS PBL24 START 85.353
HIERARCH ESO ISS PBL24 END 85.953
HIERARCH ESO ISS PBLA24 START 70.265
HIERARCH ESO ISS PBLA24 END 71.192
HIERARCH ESO ISS PBL34 START 58.914
HIERARCH ESO ISS PBL34 END 59.4
HIERARCH ESO ISS PBLA34 START 101.322
HIERARCH ESO ISS PBLA34 END 102.011
HIERARCH ESO ISS AMBI TAU0 START 0.004822
HIERARCH ESO ISS AMBI TAU0 END 0.005302
HIERARCH ESO ISS AMBI TEMP 13.53
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.66
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530