Exposure
ID
GRAVI.2025-06-10T02:17:53.020_1
Header ID
GRAVI.2025-06-10T02:17:53.020
Date updated
2025-06-10 02:30:50 UTC+0000
Release date
2026-06-10 02:30:50 UTC+0000
UTC Start
2025-06-10 02:17:53.020
UTC End
2025-06-10 02:23:53.020
MJD Start
60836.09575255
MJD End
60836.099919216664
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.003933
Ambient temperature (°C)
13.54
Seeing (arcsec)
0.59
Observation
ID
67874
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
50472
Name
SGRA
RA
266.416539
DEC
-29.00738
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 56.2420 56.2510 3.2000 4.1000
U1-U3 100.8670 100.9330 8.2000 9.2000
U1-U4 116.9150 117.6790 32.4590 33.8180
U2-U3 45.1080 45.1830 14.4000 15.6000
U2-U4 73.2310 74.2580 54.5310 55.8720
U3-U4 48.4220 49.3830 91.4180 92.1690
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 60836.09575255
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416539
DEC -29.00738
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 56.242
HIERARCH ESO ISS PBL12 END 56.251
HIERARCH ESO ISS PBLA12 START 3.2
HIERARCH ESO ISS PBLA12 END 4.1
HIERARCH ESO ISS PBL13 START 100.867
HIERARCH ESO ISS PBL13 END 100.933
HIERARCH ESO ISS PBLA13 START 8.2
HIERARCH ESO ISS PBLA13 END 9.2
HIERARCH ESO ISS PBL14 START 116.915
HIERARCH ESO ISS PBL14 END 117.679
HIERARCH ESO ISS PBLA14 START 32.459
HIERARCH ESO ISS PBLA14 END 33.818
HIERARCH ESO ISS PBL23 START 45.108
HIERARCH ESO ISS PBL23 END 45.183
HIERARCH ESO ISS PBLA23 START 14.4
HIERARCH ESO ISS PBLA23 END 15.6
HIERARCH ESO ISS PBL24 START 73.231
HIERARCH ESO ISS PBL24 END 74.258
HIERARCH ESO ISS PBLA24 START 54.531
HIERARCH ESO ISS PBLA24 END 55.872
HIERARCH ESO ISS PBL34 START 48.422
HIERARCH ESO ISS PBL34 END 49.383
HIERARCH ESO ISS PBLA34 START 91.418
HIERARCH ESO ISS PBLA34 END 92.169
HIERARCH ESO ISS AMBI TAU0 START 0.004125
HIERARCH ESO ISS AMBI TAU0 END 0.003741
HIERARCH ESO ISS AMBI TEMP 13.54
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.61
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530