Exposure
- ID
- GRAVI.2025-08-07T00:25:19.782_2
- Header ID
- GRAVI.2025-08-07T00:25:19.782
- Date updated
- 2025-08-07 00:40:49 UTC+0000
- Release date
- 2026-08-07 00:40:49 UTC+0000
- UTC Start
- 2025-08-07 00:25:19.782
- UTC End
- 2025-08-07 00:31:19.782
- MJD Start
- 60894.01759007
- MJD End
- 60894.02175673666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005391
- Ambient temperature (°C)
- 14.04
- Seeing (arcsec)
- 0.915
Observation
- ID
- 69325
- Category
- science
- Program ID
- 115.27WT.004
- 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
- 51518
- Name
- IRS16C
- RA
- 266.417075
- DEC
- -29.00768111111111
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 56.5480 | 56.5560 | 19.0000 | 19.8000 |
| U1-U3 | 102.3230 | 102.3680 | 25.2000 | 26.0000 |
| U1-U4 | 128.6560 | 129.0260 | 52.6940 | 53.6000 |
| U2-U3 | 46.4980 | 46.5420 | 32.7000 | 33.6000 |
| U2-U4 | 87.4020 | 87.8260 | 73.7090 | 74.5700 |
| U3-U4 | 60.5750 | 60.9220 | 103.9660 | 104.6640 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60894.01759007 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417191 |
| DEC | -29.00731 |
| 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 | 56.548 |
| HIERARCH ESO ISS PBL12 END | 56.556 |
| HIERARCH ESO ISS PBLA12 START | 19.0 |
| HIERARCH ESO ISS PBLA12 END | 19.8 |
| HIERARCH ESO ISS PBL13 START | 102.323 |
| HIERARCH ESO ISS PBL13 END | 102.368 |
| HIERARCH ESO ISS PBLA13 START | 25.2 |
| HIERARCH ESO ISS PBLA13 END | 26.0 |
| HIERARCH ESO ISS PBL14 START | 128.656 |
| HIERARCH ESO ISS PBL14 END | 129.026 |
| HIERARCH ESO ISS PBLA14 START | 52.694 |
| HIERARCH ESO ISS PBLA14 END | 53.6 |
| HIERARCH ESO ISS PBL23 START | 46.498 |
| HIERARCH ESO ISS PBL23 END | 46.542 |
| HIERARCH ESO ISS PBLA23 START | 32.7 |
| HIERARCH ESO ISS PBLA23 END | 33.6 |
| HIERARCH ESO ISS PBL24 START | 87.402 |
| HIERARCH ESO ISS PBL24 END | 87.826 |
| HIERARCH ESO ISS PBLA24 START | 73.709 |
| HIERARCH ESO ISS PBLA24 END | 74.57 |
| HIERARCH ESO ISS PBL34 START | 60.575 |
| HIERARCH ESO ISS PBL34 END | 60.922 |
| HIERARCH ESO ISS PBLA34 START | 103.966 |
| HIERARCH ESO ISS PBLA34 END | 104.664 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005431 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005351 |
| HIERARCH ESO ISS AMBI TEMP | 14.04 |
| HIERARCH ESO ISS AMBI FWHM START | 1.01 |
| HIERARCH ESO ISS AMBI FWHM END | 0.82 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |