Exposure
ID
GRAVI.2025-07-08T02:35:44.396_1
Header ID
GRAVI.2025-07-08T02:35:44.396
Date updated
2025-07-08 02:50:41 UTC+0000
Release date
2026-07-08 02:50:41 UTC+0000
UTC Start
2025-07-08 02:35:44.396
UTC End
2025-07-08 02:41:44.396
MJD Start
60864.10815273
MJD End
60864.11231939666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.006934
Ambient temperature (°C)
15.57
Seeing (arcsec)
0.6
Observation
ID
68374
Category
science
Program ID
115.27WT.003
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
50809
Name
SGRA
RA
266.416188
DEC
-29.00742
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 56.5590 56.5590 20.6000 21.4000
U1-U3 102.4000 102.4230 26.8000 27.6000
U1-U4 129.3270 129.6070 54.4200 55.2930
U2-U3 46.5770 46.6070 34.3000 35.2000
U2-U4 88.1760 88.5080 75.3540 76.1950
U3-U4 61.2120 61.4920 105.3150 106.0270
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60864.10815273
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416188
DEC -29.00742
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 56.559
HIERARCH ESO ISS PBL12 END 56.559
HIERARCH ESO ISS PBLA12 START 20.6
HIERARCH ESO ISS PBLA12 END 21.4
HIERARCH ESO ISS PBL13 START 102.4
HIERARCH ESO ISS PBL13 END 102.423
HIERARCH ESO ISS PBLA13 START 26.8
HIERARCH ESO ISS PBLA13 END 27.6
HIERARCH ESO ISS PBL14 START 129.327
HIERARCH ESO ISS PBL14 END 129.607
HIERARCH ESO ISS PBLA14 START 54.42
HIERARCH ESO ISS PBLA14 END 55.293
HIERARCH ESO ISS PBL23 START 46.577
HIERARCH ESO ISS PBL23 END 46.607
HIERARCH ESO ISS PBLA23 START 34.3
HIERARCH ESO ISS PBLA23 END 35.2
HIERARCH ESO ISS PBL24 START 88.176
HIERARCH ESO ISS PBL24 END 88.508
HIERARCH ESO ISS PBLA24 START 75.354
HIERARCH ESO ISS PBLA24 END 76.195
HIERARCH ESO ISS PBL34 START 61.212
HIERARCH ESO ISS PBL34 END 61.492
HIERARCH ESO ISS PBLA34 START 105.315
HIERARCH ESO ISS PBLA34 END 106.027
HIERARCH ESO ISS AMBI TAU0 START 0.006934
HIERARCH ESO ISS AMBI TAU0 END 0.006934
HIERARCH ESO ISS AMBI TEMP 15.57
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.6
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520