Exposure
- ID
- GRAVI.2025-08-10T03:17:00.260_2
- Header ID
- GRAVI.2025-08-10T03:17:00.260
- Date updated
- 2025-08-10 03:35:44 UTC+0000
- Release date
- 2026-08-10 03:35:44 UTC+0000
- UTC Start
- 2025-08-10 03:17:00.260
- UTC End
- 2025-08-10 03:23:00.260
- MJD Start
- 60897.13680857
- MJD End
- 60897.14097523667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0025
- Ambient temperature (°C)
- 12.3
- Seeing (arcsec)
- 0.9
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 | 53.7350 | 53.4670 | 36.8000 | 37.2000 |
| U1-U3 | 96.0130 | 95.3940 | 43.1000 | 43.5000 |
| U1-U4 | 116.0490 | 114.6180 | 72.9180 | 73.4900 |
| U2-U3 | 43.0080 | 42.6520 | 50.9000 | 51.4000 |
| U2-U4 | 79.2670 | 78.2270 | 96.4840 | 97.3620 |
| U3-U4 | 57.9410 | 57.4820 | 128.4700 | 129.6260 |
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 | 60897.13680857 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417374 |
| DEC | -29.00672 |
| 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 | 53.735 |
| HIERARCH ESO ISS PBL12 END | 53.467 |
| HIERARCH ESO ISS PBLA12 START | 36.8 |
| HIERARCH ESO ISS PBLA12 END | 37.2 |
| HIERARCH ESO ISS PBL13 START | 96.013 |
| HIERARCH ESO ISS PBL13 END | 95.394 |
| HIERARCH ESO ISS PBLA13 START | 43.1 |
| HIERARCH ESO ISS PBLA13 END | 43.5 |
| HIERARCH ESO ISS PBL14 START | 116.049 |
| HIERARCH ESO ISS PBL14 END | 114.618 |
| HIERARCH ESO ISS PBLA14 START | 72.918 |
| HIERARCH ESO ISS PBLA14 END | 73.49 |
| HIERARCH ESO ISS PBL23 START | 43.008 |
| HIERARCH ESO ISS PBL23 END | 42.652 |
| HIERARCH ESO ISS PBLA23 START | 50.9 |
| HIERARCH ESO ISS PBLA23 END | 51.4 |
| HIERARCH ESO ISS PBL24 START | 79.267 |
| HIERARCH ESO ISS PBL24 END | 78.227 |
| HIERARCH ESO ISS PBLA24 START | 96.484 |
| HIERARCH ESO ISS PBLA24 END | 97.362 |
| HIERARCH ESO ISS PBL34 START | 57.941 |
| HIERARCH ESO ISS PBL34 END | 57.482 |
| HIERARCH ESO ISS PBLA34 START | 128.47 |
| HIERARCH ESO ISS PBLA34 END | 129.626 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00248 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00252 |
| HIERARCH ESO ISS AMBI TEMP | 12.3 |
| HIERARCH ESO ISS AMBI FWHM START | 0.79 |
| HIERARCH ESO ISS AMBI FWHM END | 1.01 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |