Exposure
- ID
- GRAVI.2025-08-07T03:09:14.199_2
- Header ID
- GRAVI.2025-08-07T03:09:14.199
- Date updated
- 2025-08-07 03:25:43 UTC+0000
- Release date
- 2026-08-07 03:25:43 UTC+0000
- UTC Start
- 2025-08-07 03:09:14.199
- UTC End
- 2025-08-07 03:15:14.199
- MJD Start
- 60894.13141434
- MJD End
- 60894.13558100667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0044445
- Ambient temperature (°C)
- 13.14
- Seeing (arcsec)
- 0.81
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 | 54.4610 | 54.2350 | 35.4000 | 35.9000 |
| U1-U3 | 97.6920 | 97.1680 | 41.8000 | 42.2000 |
| U1-U4 | 119.9530 | 118.7320 | 71.1550 | 71.7440 |
| U2-U3 | 43.9750 | 43.6730 | 49.6000 | 50.1000 |
| U2-U4 | 82.1280 | 81.2300 | 93.9210 | 94.7550 |
| U3-U4 | 59.2350 | 58.8240 | 125.1460 | 126.2180 |
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 | 60894.13141434 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417163 |
| DEC | -29.00716 |
| 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 | 54.461 |
| HIERARCH ESO ISS PBL12 END | 54.235 |
| HIERARCH ESO ISS PBLA12 START | 35.4 |
| HIERARCH ESO ISS PBLA12 END | 35.9 |
| HIERARCH ESO ISS PBL13 START | 97.692 |
| HIERARCH ESO ISS PBL13 END | 97.168 |
| HIERARCH ESO ISS PBLA13 START | 41.8 |
| HIERARCH ESO ISS PBLA13 END | 42.2 |
| HIERARCH ESO ISS PBL14 START | 119.953 |
| HIERARCH ESO ISS PBL14 END | 118.732 |
| HIERARCH ESO ISS PBLA14 START | 71.155 |
| HIERARCH ESO ISS PBLA14 END | 71.744 |
| HIERARCH ESO ISS PBL23 START | 43.975 |
| HIERARCH ESO ISS PBL23 END | 43.673 |
| HIERARCH ESO ISS PBLA23 START | 49.6 |
| HIERARCH ESO ISS PBLA23 END | 50.1 |
| HIERARCH ESO ISS PBL24 START | 82.128 |
| HIERARCH ESO ISS PBL24 END | 81.23 |
| HIERARCH ESO ISS PBLA24 START | 93.921 |
| HIERARCH ESO ISS PBLA24 END | 94.755 |
| HIERARCH ESO ISS PBL34 START | 59.235 |
| HIERARCH ESO ISS PBL34 END | 58.824 |
| HIERARCH ESO ISS PBLA34 START | 125.146 |
| HIERARCH ESO ISS PBLA34 END | 126.218 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004297 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004592 |
| HIERARCH ESO ISS AMBI TEMP | 13.14 |
| HIERARCH ESO ISS AMBI FWHM START | 0.81 |
| HIERARCH ESO ISS AMBI FWHM END | 0.81 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |