Exposure
- ID
- GRAVI.2025-08-10T03:53:21.352_2
- Header ID
- GRAVI.2025-08-10T03:53:21.352
- Date updated
- 2025-08-10 04:10:37 UTC+0000
- Release date
- 2026-08-10 04:10:37 UTC+0000
- UTC Start
- 2025-08-10 03:53:21.352
- UTC End
- 2025-08-10 03:59:21.352
- MJD Start
- 60897.16205269
- MJD End
- 60897.166219356666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0029544999999999997
- Ambient temperature (°C)
- 12.29
- Seeing (arcsec)
- 0.98
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 | 52.0340 | 51.6820 | 38.8000 | 39.1000 |
| U1-U3 | 92.1100 | 91.3090 | 45.0000 | 45.3000 |
| U1-U4 | 107.1090 | 105.2980 | 76.0770 | 76.6260 |
| U2-U3 | 40.7730 | 40.3170 | 53.0000 | 53.3000 |
| U2-U4 | 72.8470 | 71.5720 | 101.6890 | 102.6940 |
| U3-U4 | 55.2140 | 54.7040 | 135.3810 | 136.7180 |
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 | 60897.16205269 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417334 |
| DEC | -29.00679 |
| 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 | 52.034 |
| HIERARCH ESO ISS PBL12 END | 51.682 |
| HIERARCH ESO ISS PBLA12 START | 38.8 |
| HIERARCH ESO ISS PBLA12 END | 39.1 |
| HIERARCH ESO ISS PBL13 START | 92.11 |
| HIERARCH ESO ISS PBL13 END | 91.309 |
| HIERARCH ESO ISS PBLA13 START | 45.0 |
| HIERARCH ESO ISS PBLA13 END | 45.3 |
| HIERARCH ESO ISS PBL14 START | 107.109 |
| HIERARCH ESO ISS PBL14 END | 105.298 |
| HIERARCH ESO ISS PBLA14 START | 76.077 |
| HIERARCH ESO ISS PBLA14 END | 76.626 |
| HIERARCH ESO ISS PBL23 START | 40.773 |
| HIERARCH ESO ISS PBL23 END | 40.317 |
| HIERARCH ESO ISS PBLA23 START | 53.0 |
| HIERARCH ESO ISS PBLA23 END | 53.3 |
| HIERARCH ESO ISS PBL24 START | 72.847 |
| HIERARCH ESO ISS PBL24 END | 71.572 |
| HIERARCH ESO ISS PBLA24 START | 101.689 |
| HIERARCH ESO ISS PBLA24 END | 102.694 |
| HIERARCH ESO ISS PBL34 START | 55.214 |
| HIERARCH ESO ISS PBL34 END | 54.704 |
| HIERARCH ESO ISS PBLA34 START | 135.381 |
| HIERARCH ESO ISS PBLA34 END | 136.718 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003499 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00241 |
| HIERARCH ESO ISS AMBI TEMP | 12.29 |
| HIERARCH ESO ISS AMBI FWHM START | 1.03 |
| HIERARCH ESO ISS AMBI FWHM END | 0.93 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |