Exposure
ID
GRAVI.2025-06-15T01:50:59.716_1
Header ID
GRAVI.2025-06-15T01:50:59.716
Date updated
2025-06-15 02:07:00 UTC+0000
Release date
2026-06-15 02:06:59 UTC+0000
UTC Start
2025-06-15 01:50:59.716
UTC End
2025-06-15 01:56:59.716
MJD Start
60841.07708005
MJD End
60841.08124671667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0015609999999999999
Ambient temperature (°C)
8.14
Seeing (arcsec)
2.1100000000000003
Observation
ID
68104
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
50621
Name
SGRA
RA
266.417319
DEC
-29.00779
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 56.2340 56.2410 2.1000 3.1000
U1-U3 100.8020 100.8600 7.0000 8.0000
U1-U4 116.0700 116.8220 30.9030 32.2880
U2-U3 45.0290 45.0990 13.1000 14.3000
U2-U4 72.0670 73.1030 52.9750 54.3600
U3-U4 47.3110 48.3010 90.5580 91.3220
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 60841.07708005
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417319
DEC -29.00779
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 56.234
HIERARCH ESO ISS PBL12 END 56.241
HIERARCH ESO ISS PBLA12 START 2.1
HIERARCH ESO ISS PBLA12 END 3.1
HIERARCH ESO ISS PBL13 START 100.802
HIERARCH ESO ISS PBL13 END 100.86
HIERARCH ESO ISS PBLA13 START 7.0
HIERARCH ESO ISS PBLA13 END 8.0
HIERARCH ESO ISS PBL14 START 116.07
HIERARCH ESO ISS PBL14 END 116.822
HIERARCH ESO ISS PBLA14 START 30.903
HIERARCH ESO ISS PBLA14 END 32.288
HIERARCH ESO ISS PBL23 START 45.029
HIERARCH ESO ISS PBL23 END 45.099
HIERARCH ESO ISS PBLA23 START 13.1
HIERARCH ESO ISS PBLA23 END 14.3
HIERARCH ESO ISS PBL24 START 72.067
HIERARCH ESO ISS PBL24 END 73.103
HIERARCH ESO ISS PBLA24 START 52.975
HIERARCH ESO ISS PBLA24 END 54.36
HIERARCH ESO ISS PBL34 START 47.311
HIERARCH ESO ISS PBL34 END 48.301
HIERARCH ESO ISS PBLA34 START 90.558
HIERARCH ESO ISS PBLA34 END 91.322
HIERARCH ESO ISS AMBI TAU0 START 0.001478
HIERARCH ESO ISS AMBI TAU0 END 0.001644
HIERARCH ESO ISS AMBI TEMP 8.14
HIERARCH ESO ISS AMBI FWHM START 2.0
HIERARCH ESO ISS AMBI FWHM END 2.22
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530