Exposure
ID
GRAVI.2025-06-10T06:37:38.681_1
Header ID
GRAVI.2025-06-10T06:37:38.681
Date updated
2025-06-10 06:50:42 UTC+0000
Release date
2026-06-10 06:50:42 UTC+0000
UTC Start
2025-06-10 06:37:38.681
UTC End
2025-06-10 06:43:38.681
MJD Start
60836.27614214
MJD End
60836.280308806665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0058995
Ambient temperature (°C)
12.82
Seeing (arcsec)
0.625
Observation
ID
67896
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
50493
Name
SGRA
RA
266.416872
DEC
-29.00744
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 55.0630 54.8780 34.0000 34.5000
U1-U3 99.0900 98.6590 40.3000 40.8000
U1-U4 123.2260 122.2170 69.3260 69.9370
U2-U3 44.7820 44.5330 48.2000 48.7000
U2-U4 84.5460 83.8000 91.4600 92.2630
U3-U4 60.3580 60.0090 122.0490 123.0460
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 60836.27614214
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416872
DEC -29.00744
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 55.063
HIERARCH ESO ISS PBL12 END 54.878
HIERARCH ESO ISS PBLA12 START 34.0
HIERARCH ESO ISS PBLA12 END 34.5
HIERARCH ESO ISS PBL13 START 99.09
HIERARCH ESO ISS PBL13 END 98.659
HIERARCH ESO ISS PBLA13 START 40.3
HIERARCH ESO ISS PBLA13 END 40.8
HIERARCH ESO ISS PBL14 START 123.226
HIERARCH ESO ISS PBL14 END 122.217
HIERARCH ESO ISS PBLA14 START 69.326
HIERARCH ESO ISS PBLA14 END 69.937
HIERARCH ESO ISS PBL23 START 44.782
HIERARCH ESO ISS PBL23 END 44.533
HIERARCH ESO ISS PBLA23 START 48.2
HIERARCH ESO ISS PBLA23 END 48.7
HIERARCH ESO ISS PBL24 START 84.546
HIERARCH ESO ISS PBL24 END 83.8
HIERARCH ESO ISS PBLA24 START 91.46
HIERARCH ESO ISS PBLA24 END 92.263
HIERARCH ESO ISS PBL34 START 60.358
HIERARCH ESO ISS PBL34 END 60.009
HIERARCH ESO ISS PBLA34 START 122.049
HIERARCH ESO ISS PBLA34 END 123.046
HIERARCH ESO ISS AMBI TAU0 START 0.005196
HIERARCH ESO ISS AMBI TAU0 END 0.006603
HIERARCH ESO ISS AMBI TEMP 12.82
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.63
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530