Exposure
- ID
- GRAVI.2025-07-08T05:31:14.843_2
- Header ID
- GRAVI.2025-07-08T05:31:14.843
- Date updated
- 2025-07-08 05:45:55 UTC+0000
- Release date
- 2026-07-08 05:45:55 UTC+0000
- UTC Start
- 2025-07-08 05:31:14.843
- UTC End
- 2025-07-08 05:37:14.843
- MJD Start
- 60864.2300329
- MJD End
- 60864.234199566665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008206
- Ambient temperature (°C)
- 15.56
- Seeing (arcsec)
- 0.355
Observation
- ID
- 68254
- 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
- 50720
- Name
- IRS16C
- RA
- 266.4170791666666
- 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 | 53.5480 | 53.2700 | 37.1000 | 37.5000 |
| U1-U3 | 95.5820 | 94.9410 | 43.3000 | 43.7000 |
| U1-U4 | 115.0530 | 113.5750 | 73.3190 | 73.8870 |
| U2-U3 | 42.7600 | 42.3920 | 51.2000 | 51.6000 |
| U2-U4 | 78.5430 | 77.4710 | 97.0970 | 97.9870 |
| U3-U4 | 57.6210 | 57.1520 | 129.2760 | 130.4530 |
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 | 60864.2300329 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416494 |
| DEC | -29.00741 |
| 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 | 53.548 |
| HIERARCH ESO ISS PBL12 END | 53.27 |
| HIERARCH ESO ISS PBLA12 START | 37.1 |
| HIERARCH ESO ISS PBLA12 END | 37.5 |
| HIERARCH ESO ISS PBL13 START | 95.582 |
| HIERARCH ESO ISS PBL13 END | 94.941 |
| HIERARCH ESO ISS PBLA13 START | 43.3 |
| HIERARCH ESO ISS PBLA13 END | 43.7 |
| HIERARCH ESO ISS PBL14 START | 115.053 |
| HIERARCH ESO ISS PBL14 END | 113.575 |
| HIERARCH ESO ISS PBLA14 START | 73.319 |
| HIERARCH ESO ISS PBLA14 END | 73.887 |
| HIERARCH ESO ISS PBL23 START | 42.76 |
| HIERARCH ESO ISS PBL23 END | 42.392 |
| HIERARCH ESO ISS PBLA23 START | 51.2 |
| HIERARCH ESO ISS PBLA23 END | 51.6 |
| HIERARCH ESO ISS PBL24 START | 78.543 |
| HIERARCH ESO ISS PBL24 END | 77.471 |
| HIERARCH ESO ISS PBLA24 START | 97.097 |
| HIERARCH ESO ISS PBLA24 END | 97.987 |
| HIERARCH ESO ISS PBL34 START | 57.621 |
| HIERARCH ESO ISS PBL34 END | 57.152 |
| HIERARCH ESO ISS PBLA34 START | 129.276 |
| HIERARCH ESO ISS PBLA34 END | 130.453 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008206 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008206 |
| HIERARCH ESO ISS AMBI TEMP | 15.56 |
| HIERARCH ESO ISS AMBI FWHM START | 0.34 |
| HIERARCH ESO ISS AMBI FWHM END | 0.37 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |