Exposure
ID
GRAVI.2025-07-08T03:46:14.575_1
Header ID
GRAVI.2025-07-08T03:46:14.575
Date updated
2025-07-08 04:00:35 UTC+0000
Release date
2026-07-08 04:00:35 UTC+0000
UTC Start
2025-07-08 03:46:14.575
UTC End
2025-07-08 03:52:14.575
MJD Start
60864.15711314
MJD End
60864.16127980666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.012761000000000002
Ambient temperature (°C)
15.88
Seeing (arcsec)
0.29000000000000004
Observation
ID
68382
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
50817
Name
SGRA
RA
266.416468
DEC
-29.00734
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 56.2260 56.1490 28.5000 29.1000
U1-U3 101.7820 101.6080 34.8000 35.5000
U1-U4 129.3580 129.0000 63.0570 63.7610
U2-U3 46.3270 46.2300 42.6000 43.2000
U2-U4 89.0020 88.7610 84.0800 84.8480
U3-U4 62.3830 62.2920 113.5580 114.3790
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 60864.15711314
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416468
DEC -29.00734
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 56.226
HIERARCH ESO ISS PBL12 END 56.149
HIERARCH ESO ISS PBLA12 START 28.5
HIERARCH ESO ISS PBLA12 END 29.1
HIERARCH ESO ISS PBL13 START 101.782
HIERARCH ESO ISS PBL13 END 101.608
HIERARCH ESO ISS PBLA13 START 34.8
HIERARCH ESO ISS PBLA13 END 35.5
HIERARCH ESO ISS PBL14 START 129.358
HIERARCH ESO ISS PBL14 END 129.0
HIERARCH ESO ISS PBLA14 START 63.057
HIERARCH ESO ISS PBLA14 END 63.761
HIERARCH ESO ISS PBL23 START 46.327
HIERARCH ESO ISS PBL23 END 46.23
HIERARCH ESO ISS PBLA23 START 42.6
HIERARCH ESO ISS PBLA23 END 43.2
HIERARCH ESO ISS PBL24 START 89.002
HIERARCH ESO ISS PBL24 END 88.761
HIERARCH ESO ISS PBLA24 START 84.08
HIERARCH ESO ISS PBLA24 END 84.848
HIERARCH ESO ISS PBL34 START 62.383
HIERARCH ESO ISS PBL34 END 62.292
HIERARCH ESO ISS PBLA34 START 113.558
HIERARCH ESO ISS PBLA34 END 114.379
HIERARCH ESO ISS AMBI TAU0 START 0.0134
HIERARCH ESO ISS AMBI TAU0 END 0.012122
HIERARCH ESO ISS AMBI TEMP 15.88
HIERARCH ESO ISS AMBI FWHM START 0.3
HIERARCH ESO ISS AMBI FWHM END 0.28
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520