Exposure
ID
GRAVI.2025-06-10T02:35:02.064_1
Header ID
GRAVI.2025-06-10T02:35:02.064
Date updated
2025-06-10 02:50:39 UTC+0000
Release date
2026-06-10 02:50:39 UTC+0000
UTC Start
2025-06-10 02:35:02.064
UTC End
2025-06-10 02:41:02.064
MJD Start
60836.10766278
MJD End
60836.111829446665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0042865
Ambient temperature (°C)
13.47
Seeing (arcsec)
0.59
Observation
ID
67875
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
50473
Name
SGRA
RA
266.416542
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 56.2710 56.2860 5.6000 6.6000
U1-U3 101.0550 101.1350 10.9000 11.9000
U1-U4 118.9480 119.7130 35.9960 37.2720
U2-U3 45.3140 45.3960 17.4000 18.5000
U2-U4 75.9180 76.8940 57.9940 59.2230
U3-U4 50.9010 51.7750 93.3820 94.1000
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 60836.10766278
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416542
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 56.271
HIERARCH ESO ISS PBL12 END 56.286
HIERARCH ESO ISS PBLA12 START 5.6
HIERARCH ESO ISS PBLA12 END 6.6
HIERARCH ESO ISS PBL13 START 101.055
HIERARCH ESO ISS PBL13 END 101.135
HIERARCH ESO ISS PBLA13 START 10.9
HIERARCH ESO ISS PBLA13 END 11.9
HIERARCH ESO ISS PBL14 START 118.948
HIERARCH ESO ISS PBL14 END 119.713
HIERARCH ESO ISS PBLA14 START 35.996
HIERARCH ESO ISS PBLA14 END 37.272
HIERARCH ESO ISS PBL23 START 45.314
HIERARCH ESO ISS PBL23 END 45.396
HIERARCH ESO ISS PBLA23 START 17.4
HIERARCH ESO ISS PBLA23 END 18.5
HIERARCH ESO ISS PBL24 START 75.918
HIERARCH ESO ISS PBL24 END 76.894
HIERARCH ESO ISS PBLA24 START 57.994
HIERARCH ESO ISS PBLA24 END 59.223
HIERARCH ESO ISS PBL34 START 50.901
HIERARCH ESO ISS PBL34 END 51.775
HIERARCH ESO ISS PBLA34 START 93.382
HIERARCH ESO ISS PBLA34 END 94.1
HIERARCH ESO ISS AMBI TAU0 START 0.004934
HIERARCH ESO ISS AMBI TAU0 END 0.003639
HIERARCH ESO ISS AMBI TEMP 13.47
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.57
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530