Exposure
- ID
- GRAVI.2025-08-07T03:38:17.273_2
- Header ID
- GRAVI.2025-08-07T03:38:17.273
- Date updated
- 2025-08-07 03:55:49 UTC+0000
- Release date
- 2026-08-07 03:55:49 UTC+0000
- UTC Start
- 2025-08-07 03:38:17.273
- UTC End
- 2025-08-07 03:44:17.273
- MJD Start
- 60894.15158881
- MJD End
- 60894.15575547666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0043415
- Ambient temperature (°C)
- 13.02
- Seeing (arcsec)
- 0.9650000000000001
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 | 53.3350 | 53.0460 | 37.4000 | 37.7000 |
| U1-U3 | 95.0920 | 94.4260 | 43.6000 | 44.0000 |
| U1-U4 | 113.9200 | 112.3890 | 73.7570 | 74.3220 |
| U2-U3 | 42.4790 | 42.0970 | 51.5000 | 51.9000 |
| U2-U4 | 77.7210 | 76.6150 | 97.7820 | 98.6860 |
| U3-U4 | 57.2610 | 56.7830 | 130.1810 | 131.3810 |
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 | 60894.15158881 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417163 |
| DEC | -29.00718 |
| 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 | 53.335 |
| HIERARCH ESO ISS PBL12 END | 53.046 |
| HIERARCH ESO ISS PBLA12 START | 37.4 |
| HIERARCH ESO ISS PBLA12 END | 37.7 |
| HIERARCH ESO ISS PBL13 START | 95.092 |
| HIERARCH ESO ISS PBL13 END | 94.426 |
| HIERARCH ESO ISS PBLA13 START | 43.6 |
| HIERARCH ESO ISS PBLA13 END | 44.0 |
| HIERARCH ESO ISS PBL14 START | 113.92 |
| HIERARCH ESO ISS PBL14 END | 112.389 |
| HIERARCH ESO ISS PBLA14 START | 73.757 |
| HIERARCH ESO ISS PBLA14 END | 74.322 |
| HIERARCH ESO ISS PBL23 START | 42.479 |
| HIERARCH ESO ISS PBL23 END | 42.097 |
| HIERARCH ESO ISS PBLA23 START | 51.5 |
| HIERARCH ESO ISS PBLA23 END | 51.9 |
| HIERARCH ESO ISS PBL24 START | 77.721 |
| HIERARCH ESO ISS PBL24 END | 76.615 |
| HIERARCH ESO ISS PBLA24 START | 97.782 |
| HIERARCH ESO ISS PBLA24 END | 98.686 |
| HIERARCH ESO ISS PBL34 START | 57.261 |
| HIERARCH ESO ISS PBL34 END | 56.783 |
| HIERARCH ESO ISS PBLA34 START | 130.181 |
| HIERARCH ESO ISS PBLA34 END | 131.381 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004586 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004097 |
| HIERARCH ESO ISS AMBI TEMP | 13.02 |
| HIERARCH ESO ISS AMBI FWHM START | 0.93 |
| HIERARCH ESO ISS AMBI FWHM END | 1.0 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |