Exposure
ID
GRAVI.2024-07-17T02:21:53.947_1
Header ID
GRAVI.2024-07-17T02:21:53.947
Date updated
2024-07-17 02:40:34 UTC+0000
Release date
2025-07-17 02:40:34 UTC+0000
UTC Start
2024-07-17 02:21:53.947
UTC End
2024-07-17 02:27:53.947
MJD Start
60508.09854105
MJD End
60508.1027077167
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.004606
Ambient temperature (°C)
17.37
Seeing (arcsec)
0.685
Observation
ID
60138
Category
science
Program ID
113.268P.004
Program Title
THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
ID
44644
Name
SGRA
RA
266.416869
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 56.5370 56.5180 23.3000 24.0000
U1-U3 102.4230 102.3960 29.6000 30.3000
U1-U4 130.0780 130.1720 57.3980 58.2080
U2-U3 46.6410 46.6370 37.2000 38.0000
U2-U4 89.1170 89.2710 78.2510 79.0540
U3-U4 62.0340 62.1900 107.8400 108.5770
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60508.09854105
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416869
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 56.537
HIERARCH ESO ISS PBL12 END 56.518
HIERARCH ESO ISS PBLA12 START 23.3
HIERARCH ESO ISS PBLA12 END 24.0
HIERARCH ESO ISS PBL13 START 102.423
HIERARCH ESO ISS PBL13 END 102.396
HIERARCH ESO ISS PBLA13 START 29.6
HIERARCH ESO ISS PBLA13 END 30.3
HIERARCH ESO ISS PBL14 START 130.078
HIERARCH ESO ISS PBL14 END 130.172
HIERARCH ESO ISS PBLA14 START 57.398
HIERARCH ESO ISS PBLA14 END 58.208
HIERARCH ESO ISS PBL23 START 46.641
HIERARCH ESO ISS PBL23 END 46.637
HIERARCH ESO ISS PBLA23 START 37.2
HIERARCH ESO ISS PBLA23 END 38.0
HIERARCH ESO ISS PBL24 START 89.117
HIERARCH ESO ISS PBL24 END 89.271
HIERARCH ESO ISS PBLA24 START 78.251
HIERARCH ESO ISS PBLA24 END 79.054
HIERARCH ESO ISS PBL34 START 62.034
HIERARCH ESO ISS PBL34 END 62.19
HIERARCH ESO ISS PBLA34 START 107.84
HIERARCH ESO ISS PBLA34 END 108.577
HIERARCH ESO ISS AMBI TAU0 START 0.004606
HIERARCH ESO ISS AMBI TAU0 END 0.004606
HIERARCH ESO ISS AMBI TEMP 17.37
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.66
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541