Exposure
- ID
- GRAVI.2025-08-07T01:11:13.899_2
- Header ID
- GRAVI.2025-08-07T01:11:13.899
- Date updated
- 2025-08-07 01:30:46 UTC+0000
- Release date
- 2026-08-07 01:30:46 UTC+0000
- UTC Start
- 2025-08-07 01:11:13.899
- UTC End
- 2025-08-07 01:17:13.899
- MJD Start
- 60894.04946642
- MJD End
- 60894.05363308667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0047055
- Ambient temperature (°C)
- 14.2
- Seeing (arcsec)
- 0.97
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 | 56.5010 | 56.4720 | 24.5000 | 25.2000 |
| U1-U3 | 102.3680 | 102.3130 | 30.8000 | 31.6000 |
| U1-U4 | 130.2040 | 130.2010 | 58.7570 | 59.5450 |
| U2-U3 | 46.6280 | 46.6050 | 38.5000 | 39.3000 |
| U2-U4 | 89.3480 | 89.4140 | 79.6040 | 80.4000 |
| U3-U4 | 62.2770 | 62.3750 | 109.0890 | 109.8460 |
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 | 60894.04946642 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417208 |
| DEC | -29.00728 |
| 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 | 56.501 |
| HIERARCH ESO ISS PBL12 END | 56.472 |
| HIERARCH ESO ISS PBLA12 START | 24.5 |
| HIERARCH ESO ISS PBLA12 END | 25.2 |
| HIERARCH ESO ISS PBL13 START | 102.368 |
| HIERARCH ESO ISS PBL13 END | 102.313 |
| HIERARCH ESO ISS PBLA13 START | 30.8 |
| HIERARCH ESO ISS PBLA13 END | 31.6 |
| HIERARCH ESO ISS PBL14 START | 130.204 |
| HIERARCH ESO ISS PBL14 END | 130.201 |
| HIERARCH ESO ISS PBLA14 START | 58.757 |
| HIERARCH ESO ISS PBLA14 END | 59.545 |
| HIERARCH ESO ISS PBL23 START | 46.628 |
| HIERARCH ESO ISS PBL23 END | 46.605 |
| HIERARCH ESO ISS PBLA23 START | 38.5 |
| HIERARCH ESO ISS PBLA23 END | 39.3 |
| HIERARCH ESO ISS PBL24 START | 89.348 |
| HIERARCH ESO ISS PBL24 END | 89.414 |
| HIERARCH ESO ISS PBLA24 START | 79.604 |
| HIERARCH ESO ISS PBLA24 END | 80.4 |
| HIERARCH ESO ISS PBL34 START | 62.277 |
| HIERARCH ESO ISS PBL34 END | 62.375 |
| HIERARCH ESO ISS PBLA34 START | 109.089 |
| HIERARCH ESO ISS PBLA34 END | 109.846 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004397 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005014 |
| HIERARCH ESO ISS AMBI TEMP | 14.2 |
| HIERARCH ESO ISS AMBI FWHM START | 0.97 |
| HIERARCH ESO ISS AMBI FWHM END | 0.97 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |