Exposure
ID
GRAVI.2025-07-08T00:24:26.062_1
Header ID
GRAVI.2025-07-08T00:24:26.062
Date updated
2025-07-08 00:40:39 UTC+0000
Release date
2026-07-08 00:40:39 UTC+0000
UTC Start
2025-07-08 00:24:26.062
UTC End
2025-07-08 00:30:26.062
MJD Start
60864.01696831
MJD End
60864.02113497667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.006189999999999999
Ambient temperature (°C)
15.76
Seeing (arcsec)
0.6000000000000001
Observation
ID
68368
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
50803
Name
SGRA
RA
266.416188
DEC
-29.00743
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 56.2380 56.2460 2.7000 3.6000
U1-U3 100.8360 100.8980 7.6000 8.7000
U1-U4 116.5220 117.2780 31.7440 33.1100
U2-U3 45.0710 45.1430 13.8000 15.0000
U2-U4 72.6940 73.7220 53.8180 55.1750
U3-U4 47.9130 48.8850 91.0230 91.7770
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 60864.01696831
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416188
DEC -29.00743
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 56.238
HIERARCH ESO ISS PBL12 END 56.246
HIERARCH ESO ISS PBLA12 START 2.7
HIERARCH ESO ISS PBLA12 END 3.6
HIERARCH ESO ISS PBL13 START 100.836
HIERARCH ESO ISS PBL13 END 100.898
HIERARCH ESO ISS PBLA13 START 7.6
HIERARCH ESO ISS PBLA13 END 8.7
HIERARCH ESO ISS PBL14 START 116.522
HIERARCH ESO ISS PBL14 END 117.278
HIERARCH ESO ISS PBLA14 START 31.744
HIERARCH ESO ISS PBLA14 END 33.11
HIERARCH ESO ISS PBL23 START 45.071
HIERARCH ESO ISS PBL23 END 45.143
HIERARCH ESO ISS PBLA23 START 13.8
HIERARCH ESO ISS PBLA23 END 15.0
HIERARCH ESO ISS PBL24 START 72.694
HIERARCH ESO ISS PBL24 END 73.722
HIERARCH ESO ISS PBLA24 START 53.818
HIERARCH ESO ISS PBLA24 END 55.175
HIERARCH ESO ISS PBL34 START 47.913
HIERARCH ESO ISS PBL34 END 48.885
HIERARCH ESO ISS PBLA34 START 91.023
HIERARCH ESO ISS PBLA34 END 91.777
HIERARCH ESO ISS AMBI TAU0 START 0.005364
HIERARCH ESO ISS AMBI TAU0 END 0.007016
HIERARCH ESO ISS AMBI TEMP 15.76
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.52
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520