Exposure
- ID
- GRAVI.2025-05-13T06:01:55.660_2
- Header ID
- GRAVI.2025-05-13T06:01:55.660
- Date updated
- 2025-05-13 06:56:31 UTC+0000
- Release date
- 2026-05-13 06:56:30 UTC+0000
- UTC Start
- 2025-05-13 06:01:55.660
- UTC End
- 2025-05-13 06:07:55.660
- MJD Start
- 60808.25133866
- MJD End
- 60808.25550532666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.009376
- Ambient temperature (°C)
- 16.76
- Seeing (arcsec)
- 0.4
Observation
- ID
- 67241
- Category
- science
- Program ID
- 115.27WT.001
- 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
- 45257
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.007681388888887
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 | 56.5460 | 56.5540 | 18.8000 | 19.6000 |
| U1-U3 | 102.3100 | 102.3580 | 25.0000 | 25.8000 |
| U1-U4 | 128.5590 | 128.9420 | 52.4700 | 53.3850 |
| U2-U3 | 46.4850 | 46.5320 | 32.5000 | 33.3000 |
| U2-U4 | 87.2930 | 87.7300 | 73.4970 | 74.3650 |
| U3-U4 | 60.4860 | 60.8430 | 103.7960 | 104.4970 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60808.25133866 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416181 |
| DEC | -29.00739 |
| 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 | 56.546 |
| HIERARCH ESO ISS PBL12 END | 56.554 |
| HIERARCH ESO ISS PBLA12 START | 18.8 |
| HIERARCH ESO ISS PBLA12 END | 19.6 |
| HIERARCH ESO ISS PBL13 START | 102.31 |
| HIERARCH ESO ISS PBL13 END | 102.358 |
| HIERARCH ESO ISS PBLA13 START | 25.0 |
| HIERARCH ESO ISS PBLA13 END | 25.8 |
| HIERARCH ESO ISS PBL14 START | 128.559 |
| HIERARCH ESO ISS PBL14 END | 128.942 |
| HIERARCH ESO ISS PBLA14 START | 52.47 |
| HIERARCH ESO ISS PBLA14 END | 53.385 |
| HIERARCH ESO ISS PBL23 START | 46.485 |
| HIERARCH ESO ISS PBL23 END | 46.532 |
| HIERARCH ESO ISS PBLA23 START | 32.5 |
| HIERARCH ESO ISS PBLA23 END | 33.3 |
| HIERARCH ESO ISS PBL24 START | 87.293 |
| HIERARCH ESO ISS PBL24 END | 87.73 |
| HIERARCH ESO ISS PBLA24 START | 73.497 |
| HIERARCH ESO ISS PBLA24 END | 74.365 |
| HIERARCH ESO ISS PBL34 START | 60.486 |
| HIERARCH ESO ISS PBL34 END | 60.843 |
| HIERARCH ESO ISS PBLA34 START | 103.796 |
| HIERARCH ESO ISS PBLA34 END | 104.497 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009466 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009286 |
| HIERARCH ESO ISS AMBI TEMP | 16.76 |
| HIERARCH ESO ISS AMBI FWHM START | 0.42 |
| HIERARCH ESO ISS AMBI FWHM END | 0.38 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |