Exposure
ID
GRAVI.2025-05-12T06:50:40.693_1
Header ID
GRAVI.2025-05-12T06:50:40.693
Date updated
2025-05-12 19:45:47 UTC+0000
Release date
2026-05-12 19:45:45 UTC+0000
UTC Start
2025-05-12 06:50:40.693
UTC End
2025-05-12 06:56:40.693
MJD Start
60807.28519321
MJD End
60807.28935987667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0109385
Ambient temperature (°C)
17.68
Seeing (arcsec)
0.365
Observation
ID
67254
Category
science
Program ID
115.27WT.001
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
49996
Name
SGRA
RA
266.416277
DEC
-29.00741
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 56.5120 56.4850 24.2000 24.9000
U1-U3 102.3860 102.3370 30.5000 31.3000
U1-U4 130.1880 130.2090 58.4260 59.2180
U2-U3 46.6340 46.6160 38.2000 38.9000
U2-U4 89.3060 89.3940 79.2720 80.0680
U3-U4 62.2280 62.3400 108.7780 109.5280
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60807.28519321
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416277
DEC -29.00741
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 56.512
HIERARCH ESO ISS PBL12 END 56.485
HIERARCH ESO ISS PBLA12 START 24.2
HIERARCH ESO ISS PBLA12 END 24.9
HIERARCH ESO ISS PBL13 START 102.386
HIERARCH ESO ISS PBL13 END 102.337
HIERARCH ESO ISS PBLA13 START 30.5
HIERARCH ESO ISS PBLA13 END 31.3
HIERARCH ESO ISS PBL14 START 130.188
HIERARCH ESO ISS PBL14 END 130.209
HIERARCH ESO ISS PBLA14 START 58.426
HIERARCH ESO ISS PBLA14 END 59.218
HIERARCH ESO ISS PBL23 START 46.634
HIERARCH ESO ISS PBL23 END 46.616
HIERARCH ESO ISS PBLA23 START 38.2
HIERARCH ESO ISS PBLA23 END 38.9
HIERARCH ESO ISS PBL24 START 89.306
HIERARCH ESO ISS PBL24 END 89.394
HIERARCH ESO ISS PBLA24 START 79.272
HIERARCH ESO ISS PBLA24 END 80.068
HIERARCH ESO ISS PBL34 START 62.228
HIERARCH ESO ISS PBL34 END 62.34
HIERARCH ESO ISS PBLA34 START 108.778
HIERARCH ESO ISS PBLA34 END 109.528
HIERARCH ESO ISS AMBI TAU0 START 0.01012
HIERARCH ESO ISS AMBI TAU0 END 0.011757
HIERARCH ESO ISS AMBI TEMP 17.68
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.35
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530