Exposure
- ID
- GRAVI.2025-07-08T04:51:41.742_2
- Header ID
- GRAVI.2025-07-08T04:51:41.742
- Date updated
- 2025-07-08 05:05:40 UTC+0000
- Release date
- 2026-07-08 05:05:40 UTC+0000
- UTC Start
- 2025-07-08 04:51:41.742
- UTC End
- 2025-07-08 04:57:41.742
- MJD Start
- 60864.20256646
- MJD End
- 60864.206733126666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0109035
- Ambient temperature (°C)
- 15.61
- Seeing (arcsec)
- 0.275
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 | 54.9460 | 54.7530 | 34.3000 | 34.8000 |
| U1-U3 | 98.8190 | 98.3690 | 40.6000 | 41.1000 |
| U1-U4 | 122.5910 | 121.5380 | 69.7140 | 70.3210 |
| U2-U3 | 44.6250 | 44.3660 | 48.5000 | 49.0000 |
| U2-U4 | 84.0760 | 83.2980 | 91.9690 | 92.7770 |
| U3-U4 | 60.1390 | 59.7760 | 122.6800 | 123.6930 |
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 | 60864.20256646 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416486 |
| 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 | 54.946 |
| HIERARCH ESO ISS PBL12 END | 54.753 |
| HIERARCH ESO ISS PBLA12 START | 34.3 |
| HIERARCH ESO ISS PBLA12 END | 34.8 |
| HIERARCH ESO ISS PBL13 START | 98.819 |
| HIERARCH ESO ISS PBL13 END | 98.369 |
| HIERARCH ESO ISS PBLA13 START | 40.6 |
| HIERARCH ESO ISS PBLA13 END | 41.1 |
| HIERARCH ESO ISS PBL14 START | 122.591 |
| HIERARCH ESO ISS PBL14 END | 121.538 |
| HIERARCH ESO ISS PBLA14 START | 69.714 |
| HIERARCH ESO ISS PBLA14 END | 70.321 |
| HIERARCH ESO ISS PBL23 START | 44.625 |
| HIERARCH ESO ISS PBL23 END | 44.366 |
| HIERARCH ESO ISS PBLA23 START | 48.5 |
| HIERARCH ESO ISS PBLA23 END | 49.0 |
| HIERARCH ESO ISS PBL24 START | 84.076 |
| HIERARCH ESO ISS PBL24 END | 83.298 |
| HIERARCH ESO ISS PBLA24 START | 91.969 |
| HIERARCH ESO ISS PBLA24 END | 92.777 |
| HIERARCH ESO ISS PBL34 START | 60.139 |
| HIERARCH ESO ISS PBL34 END | 59.776 |
| HIERARCH ESO ISS PBLA34 START | 122.68 |
| HIERARCH ESO ISS PBLA34 END | 123.693 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.011643 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.010164 |
| HIERARCH ESO ISS AMBI TEMP | 15.61 |
| HIERARCH ESO ISS AMBI FWHM START | 0.26 |
| HIERARCH ESO ISS AMBI FWHM END | 0.29 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |