Exposure
- ID
- GRAVI.2025-08-10T03:45:54.334_2
- Header ID
- GRAVI.2025-08-10T03:45:54.334
- Date updated
- 2025-08-10 04:00:37 UTC+0000
- Release date
- 2026-08-10 04:00:37 UTC+0000
- UTC Start
- 2025-08-10 03:45:54.334
- UTC End
- 2025-08-10 03:51:54.334
- MJD Start
- 60897.15687886
- MJD End
- 60897.161045526664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0033740000000000003
- Ambient temperature (°C)
- 12.36
- Seeing (arcsec)
- 1.0150000000000001
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 | 52.4220 | 52.0880 | 38.5000 | 38.8000 |
| U1-U3 | 92.9980 | 92.2350 | 44.7000 | 45.0000 |
| U1-U4 | 109.1250 | 107.3920 | 75.4370 | 75.9890 |
| U2-U3 | 41.2800 | 40.8440 | 52.6000 | 52.9000 |
| U2-U4 | 74.2780 | 73.0470 | 100.5580 | 101.5310 |
| U3-U4 | 55.7990 | 55.2950 | 133.8730 | 135.1710 |
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 | 60897.15687886 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417343 |
| DEC | -29.00678 |
| 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 | 52.422 |
| HIERARCH ESO ISS PBL12 END | 52.088 |
| HIERARCH ESO ISS PBLA12 START | 38.5 |
| HIERARCH ESO ISS PBLA12 END | 38.8 |
| HIERARCH ESO ISS PBL13 START | 92.998 |
| HIERARCH ESO ISS PBL13 END | 92.235 |
| HIERARCH ESO ISS PBLA13 START | 44.7 |
| HIERARCH ESO ISS PBLA13 END | 45.0 |
| HIERARCH ESO ISS PBL14 START | 109.125 |
| HIERARCH ESO ISS PBL14 END | 107.392 |
| HIERARCH ESO ISS PBLA14 START | 75.437 |
| HIERARCH ESO ISS PBLA14 END | 75.989 |
| HIERARCH ESO ISS PBL23 START | 41.28 |
| HIERARCH ESO ISS PBL23 END | 40.844 |
| HIERARCH ESO ISS PBLA23 START | 52.6 |
| HIERARCH ESO ISS PBLA23 END | 52.9 |
| HIERARCH ESO ISS PBL24 START | 74.278 |
| HIERARCH ESO ISS PBL24 END | 73.047 |
| HIERARCH ESO ISS PBLA24 START | 100.558 |
| HIERARCH ESO ISS PBLA24 END | 101.531 |
| HIERARCH ESO ISS PBL34 START | 55.799 |
| HIERARCH ESO ISS PBL34 END | 55.295 |
| HIERARCH ESO ISS PBLA34 START | 133.873 |
| HIERARCH ESO ISS PBLA34 END | 135.171 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003249 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003499 |
| HIERARCH ESO ISS AMBI TEMP | 12.36 |
| HIERARCH ESO ISS AMBI FWHM START | 1.0 |
| HIERARCH ESO ISS AMBI FWHM END | 1.03 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |