Exposure
ID
GRAVI.2025-06-10T02:42:11.082_1
Header ID
GRAVI.2025-06-10T02:42:11.082
Date updated
2025-06-10 03:00:45 UTC+0000
Release date
2026-06-10 03:00:44 UTC+0000
UTC Start
2025-06-10 02:42:11.082
UTC End
2025-06-10 02:48:11.082
MJD Start
60836.11262826
MJD End
60836.11679492667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0039975
Ambient temperature (°C)
13.57
Seeing (arcsec)
0.645
Observation
ID
67876
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
50474
Name
SGRA
RA
266.416543
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 56.2870 56.3040 6.7000 7.6000
U1-U3 101.1450 101.2300 12.0000 13.0000
U1-U4 119.8000 120.5630 37.4150 38.6670
U2-U3 45.4060 45.4910 18.6000 19.7000
U2-U4 77.0040 77.9600 59.3610 60.5560
U3-U4 51.8720 52.7150 94.1820 94.8950
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 60836.11262826
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416543
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 56.287
HIERARCH ESO ISS PBL12 END 56.304
HIERARCH ESO ISS PBLA12 START 6.7
HIERARCH ESO ISS PBLA12 END 7.6
HIERARCH ESO ISS PBL13 START 101.145
HIERARCH ESO ISS PBL13 END 101.23
HIERARCH ESO ISS PBLA13 START 12.0
HIERARCH ESO ISS PBLA13 END 13.0
HIERARCH ESO ISS PBL14 START 119.8
HIERARCH ESO ISS PBL14 END 120.563
HIERARCH ESO ISS PBLA14 START 37.415
HIERARCH ESO ISS PBLA14 END 38.667
HIERARCH ESO ISS PBL23 START 45.406
HIERARCH ESO ISS PBL23 END 45.491
HIERARCH ESO ISS PBLA23 START 18.6
HIERARCH ESO ISS PBLA23 END 19.7
HIERARCH ESO ISS PBL24 START 77.004
HIERARCH ESO ISS PBL24 END 77.96
HIERARCH ESO ISS PBLA24 START 59.361
HIERARCH ESO ISS PBLA24 END 60.556
HIERARCH ESO ISS PBL34 START 51.872
HIERARCH ESO ISS PBL34 END 52.715
HIERARCH ESO ISS PBLA34 START 94.182
HIERARCH ESO ISS PBLA34 END 94.895
HIERARCH ESO ISS AMBI TAU0 START 0.003607
HIERARCH ESO ISS AMBI TAU0 END 0.004388
HIERARCH ESO ISS AMBI TEMP 13.57
HIERARCH ESO ISS AMBI FWHM START 0.66
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