Exposure
- ID
- GRAVI.2025-08-08T01:11:02.493_2
- Header ID
- GRAVI.2025-08-08T01:11:02.493
- Date updated
- 2025-08-08 01:30:45 UTC+0000
- Release date
- 2026-08-08 01:30:45 UTC+0000
- UTC Start
- 2025-08-08 01:11:02.493
- UTC End
- 2025-08-08 01:17:02.493
- MJD Start
- 60895.04933441
- MJD End
- 60895.05350107667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003647
- Ambient temperature (°C)
- 13.19
- Seeing (arcsec)
- 0.8200000000000001
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 | 56.4850 | 56.4510 | 24.9000 | 25.7000 |
| U1-U3 | 102.3390 | 102.2730 | 31.3000 | 32.0000 |
| U1-U4 | 130.2090 | 130.1720 | 59.2210 | 60.0020 |
| U2-U3 | 46.6160 | 46.5860 | 38.9000 | 39.7000 |
| U2-U4 | 89.3920 | 89.4280 | 80.0720 | 80.8660 |
| U3-U4 | 62.3380 | 62.4160 | 109.5330 | 110.2970 |
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 | 60895.04933441 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416481 |
| DEC | -29.00665 |
| 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 | 56.485 |
| HIERARCH ESO ISS PBL12 END | 56.451 |
| HIERARCH ESO ISS PBLA12 START | 24.9 |
| HIERARCH ESO ISS PBLA12 END | 25.7 |
| HIERARCH ESO ISS PBL13 START | 102.339 |
| HIERARCH ESO ISS PBL13 END | 102.273 |
| HIERARCH ESO ISS PBLA13 START | 31.3 |
| HIERARCH ESO ISS PBLA13 END | 32.0 |
| HIERARCH ESO ISS PBL14 START | 130.209 |
| HIERARCH ESO ISS PBL14 END | 130.172 |
| HIERARCH ESO ISS PBLA14 START | 59.221 |
| HIERARCH ESO ISS PBLA14 END | 60.002 |
| HIERARCH ESO ISS PBL23 START | 46.616 |
| HIERARCH ESO ISS PBL23 END | 46.586 |
| HIERARCH ESO ISS PBLA23 START | 38.9 |
| HIERARCH ESO ISS PBLA23 END | 39.7 |
| HIERARCH ESO ISS PBL24 START | 89.392 |
| HIERARCH ESO ISS PBL24 END | 89.428 |
| HIERARCH ESO ISS PBLA24 START | 80.072 |
| HIERARCH ESO ISS PBLA24 END | 80.866 |
| HIERARCH ESO ISS PBL34 START | 62.338 |
| HIERARCH ESO ISS PBL34 END | 62.416 |
| HIERARCH ESO ISS PBLA34 START | 109.533 |
| HIERARCH ESO ISS PBLA34 END | 110.297 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003722 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003572 |
| HIERARCH ESO ISS AMBI TEMP | 13.19 |
| HIERARCH ESO ISS AMBI FWHM START | 0.81 |
| HIERARCH ESO ISS AMBI FWHM END | 0.83 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |