Exposure
- ID
- GRAVI.2025-07-08T04:08:05.630_2
- Header ID
- GRAVI.2025-07-08T04:08:05.630
- Date updated
- 2025-07-08 04:25:34 UTC+0000
- Release date
- 2026-07-08 04:25:33 UTC+0000
- UTC Start
- 2025-07-08 04:08:05.630
- UTC End
- 2025-07-08 04:14:05.630
- MJD Start
- 60864.17228739
- MJD End
- 60864.176454056666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0106
- Ambient temperature (°C)
- 15.86
- Seeing (arcsec)
- 0.26
Observation
- ID
- 68254
- Category
- science
- Program ID
- 115.27WT.003
- 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
- 50720
- Name
- IRS16C
- RA
- 266.4170791666666
- 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 | 55.9250 | 55.8140 | 30.6000 | 31.2000 |
| U1-U3 | 101.0940 | 100.8370 | 37.0000 | 37.5000 |
| U1-U4 | 127.8720 | 127.2890 | 65.4010 | 66.0660 |
| U2-U3 | 45.9380 | 45.7900 | 44.7000 | 45.3000 |
| U2-U4 | 87.9650 | 87.5430 | 86.6890 | 87.4570 |
| U3-U4 | 61.9510 | 61.7600 | 116.4060 | 117.2790 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60864.17228739 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416474 |
| DEC | -29.00735 |
| 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 | 55.925 |
| HIERARCH ESO ISS PBL12 END | 55.814 |
| HIERARCH ESO ISS PBLA12 START | 30.6 |
| HIERARCH ESO ISS PBLA12 END | 31.2 |
| HIERARCH ESO ISS PBL13 START | 101.094 |
| HIERARCH ESO ISS PBL13 END | 100.837 |
| HIERARCH ESO ISS PBLA13 START | 37.0 |
| HIERARCH ESO ISS PBLA13 END | 37.5 |
| HIERARCH ESO ISS PBL14 START | 127.872 |
| HIERARCH ESO ISS PBL14 END | 127.289 |
| HIERARCH ESO ISS PBLA14 START | 65.401 |
| HIERARCH ESO ISS PBLA14 END | 66.066 |
| HIERARCH ESO ISS PBL23 START | 45.938 |
| HIERARCH ESO ISS PBL23 END | 45.79 |
| HIERARCH ESO ISS PBLA23 START | 44.7 |
| HIERARCH ESO ISS PBLA23 END | 45.3 |
| HIERARCH ESO ISS PBL24 START | 87.965 |
| HIERARCH ESO ISS PBL24 END | 87.543 |
| HIERARCH ESO ISS PBLA24 START | 86.689 |
| HIERARCH ESO ISS PBLA24 END | 87.457 |
| HIERARCH ESO ISS PBL34 START | 61.951 |
| HIERARCH ESO ISS PBL34 END | 61.76 |
| HIERARCH ESO ISS PBLA34 START | 116.406 |
| HIERARCH ESO ISS PBLA34 END | 117.279 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.01206 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00914 |
| HIERARCH ESO ISS AMBI TEMP | 15.86 |
| HIERARCH ESO ISS AMBI FWHM START | 0.25 |
| HIERARCH ESO ISS AMBI FWHM END | 0.27 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |