Exposure
ID
GRAVI.2025-07-08T03:53:20.593_1
Header ID
GRAVI.2025-07-08T03:53:20.593
Date updated
2025-07-08 04:10:37 UTC+0000
Release date
2026-07-08 04:10:37 UTC+0000
UTC Start
2025-07-08 03:53:20.593
UTC End
2025-07-08 03:59:20.593
MJD Start
60864.1620439
MJD End
60864.16621056667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0126805
Ambient temperature (°C)
15.93
Seeing (arcsec)
0.265
Observation
ID
68383
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
50818
Name
SGRA
RA
266.416494
DEC
-29.00736
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 56.1410 56.0530 29.2000 29.8000
U1-U3 101.5890 101.3880 35.5000 36.2000
U1-U4 128.9590 128.5260 63.8340 64.5280
U2-U3 46.2190 46.1050 43.3000 43.9000
U2-U4 88.7330 88.4320 84.9280 85.6990
U3-U4 62.2810 62.1560 114.4650 115.3050
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 60864.1620439
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416494
DEC -29.00736
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 56.141
HIERARCH ESO ISS PBL12 END 56.053
HIERARCH ESO ISS PBLA12 START 29.2
HIERARCH ESO ISS PBLA12 END 29.8
HIERARCH ESO ISS PBL13 START 101.589
HIERARCH ESO ISS PBL13 END 101.388
HIERARCH ESO ISS PBLA13 START 35.5
HIERARCH ESO ISS PBLA13 END 36.2
HIERARCH ESO ISS PBL14 START 128.959
HIERARCH ESO ISS PBL14 END 128.526
HIERARCH ESO ISS PBLA14 START 63.834
HIERARCH ESO ISS PBLA14 END 64.528
HIERARCH ESO ISS PBL23 START 46.219
HIERARCH ESO ISS PBL23 END 46.105
HIERARCH ESO ISS PBLA23 START 43.3
HIERARCH ESO ISS PBLA23 END 43.9
HIERARCH ESO ISS PBL24 START 88.733
HIERARCH ESO ISS PBL24 END 88.432
HIERARCH ESO ISS PBLA24 START 84.928
HIERARCH ESO ISS PBLA24 END 85.699
HIERARCH ESO ISS PBL34 START 62.281
HIERARCH ESO ISS PBL34 END 62.156
HIERARCH ESO ISS PBLA34 START 114.465
HIERARCH ESO ISS PBLA34 END 115.305
HIERARCH ESO ISS AMBI TAU0 START 0.015001
HIERARCH ESO ISS AMBI TAU0 END 0.01036
HIERARCH ESO ISS AMBI TEMP 15.93
HIERARCH ESO ISS AMBI FWHM START 0.24
HIERARCH ESO ISS AMBI FWHM END 0.29
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520