Exposure
- ID
- GRAVI.2025-08-10T03:38:45.315_2
- Header ID
- GRAVI.2025-08-10T03:38:45.315
- Date updated
- 2025-08-10 03:55:31 UTC+0000
- Release date
- 2026-08-10 03:55:31 UTC+0000
- UTC Start
- 2025-08-10 03:38:45.315
- UTC End
- 2025-08-10 03:44:45.315
- MJD Start
- 60897.15191337
- MJD End
- 60897.156080036664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00299
- Ambient temperature (°C)
- 12.39
- 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 | 52.7740 | 52.4560 | 38.1000 | 38.4000 |
| U1-U3 | 93.8020 | 93.0740 | 44.3000 | 44.7000 |
| U1-U4 | 110.9600 | 109.3000 | 74.8230 | 75.3800 |
| U2-U3 | 41.7400 | 41.3240 | 52.2000 | 52.6000 |
| U2-U4 | 75.5890 | 74.4020 | 99.5140 | 100.4590 |
| U3-U4 | 56.3470 | 55.8500 | 132.4810 | 133.7420 |
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 | 60897.15191337 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417353 |
| DEC | -29.00677 |
| 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 | 52.774 |
| HIERARCH ESO ISS PBL12 END | 52.456 |
| HIERARCH ESO ISS PBLA12 START | 38.1 |
| HIERARCH ESO ISS PBLA12 END | 38.4 |
| HIERARCH ESO ISS PBL13 START | 93.802 |
| HIERARCH ESO ISS PBL13 END | 93.074 |
| HIERARCH ESO ISS PBLA13 START | 44.3 |
| HIERARCH ESO ISS PBLA13 END | 44.7 |
| HIERARCH ESO ISS PBL14 START | 110.96 |
| HIERARCH ESO ISS PBL14 END | 109.3 |
| HIERARCH ESO ISS PBLA14 START | 74.823 |
| HIERARCH ESO ISS PBLA14 END | 75.38 |
| HIERARCH ESO ISS PBL23 START | 41.74 |
| HIERARCH ESO ISS PBL23 END | 41.324 |
| HIERARCH ESO ISS PBLA23 START | 52.2 |
| HIERARCH ESO ISS PBLA23 END | 52.6 |
| HIERARCH ESO ISS PBL24 START | 75.589 |
| HIERARCH ESO ISS PBL24 END | 74.402 |
| HIERARCH ESO ISS PBLA24 START | 99.514 |
| HIERARCH ESO ISS PBLA24 END | 100.459 |
| HIERARCH ESO ISS PBL34 START | 56.347 |
| HIERARCH ESO ISS PBL34 END | 55.85 |
| HIERARCH ESO ISS PBLA34 START | 132.481 |
| HIERARCH ESO ISS PBLA34 END | 133.742 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002731 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003249 |
| HIERARCH ESO ISS AMBI TEMP | 12.39 |
| HIERARCH ESO ISS AMBI FWHM START | 0.8 |
| 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 |