Exposure
- ID
- GRAVI.2025-05-12T07:12:31.749_2
- Header ID
- GRAVI.2025-05-12T07:12:31.749
- Date updated
- 2025-05-12 19:45:47 UTC+0000
- Release date
- 2026-05-12 19:45:45 UTC+0000
- UTC Start
- 2025-05-12 07:12:31.749
- UTC End
- 2025-05-12 07:18:31.749
- MJD Start
- 60807.30036747
- MJD End
- 60807.30453413667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.009044
- Ambient temperature (°C)
- 17.55
- Seeing (arcsec)
- 0.495
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 | 56.3910 | 56.3390 | 26.6000 | 27.3000 |
| U1-U3 | 102.1480 | 102.0340 | 33.0000 | 33.7000 |
| U1-U4 | 130.0190 | 129.8350 | 61.0450 | 61.7890 |
| U2-U3 | 46.5240 | 46.4640 | 40.7000 | 41.4000 |
| U2-U4 | 89.3880 | 89.2960 | 81.9430 | 82.7230 |
| U3-U4 | 62.4680 | 62.4660 | 111.3590 | 112.1480 |
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 | 60807.30036747 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416384 |
| DEC | -29.00737 |
| 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 | 56.391 |
| HIERARCH ESO ISS PBL12 END | 56.339 |
| HIERARCH ESO ISS PBLA12 START | 26.6 |
| HIERARCH ESO ISS PBLA12 END | 27.3 |
| HIERARCH ESO ISS PBL13 START | 102.148 |
| HIERARCH ESO ISS PBL13 END | 102.034 |
| HIERARCH ESO ISS PBLA13 START | 33.0 |
| HIERARCH ESO ISS PBLA13 END | 33.7 |
| HIERARCH ESO ISS PBL14 START | 130.019 |
| HIERARCH ESO ISS PBL14 END | 129.835 |
| HIERARCH ESO ISS PBLA14 START | 61.045 |
| HIERARCH ESO ISS PBLA14 END | 61.789 |
| HIERARCH ESO ISS PBL23 START | 46.524 |
| HIERARCH ESO ISS PBL23 END | 46.464 |
| HIERARCH ESO ISS PBLA23 START | 40.7 |
| HIERARCH ESO ISS PBLA23 END | 41.4 |
| HIERARCH ESO ISS PBL24 START | 89.388 |
| HIERARCH ESO ISS PBL24 END | 89.296 |
| HIERARCH ESO ISS PBLA24 START | 81.943 |
| HIERARCH ESO ISS PBLA24 END | 82.723 |
| HIERARCH ESO ISS PBL34 START | 62.468 |
| HIERARCH ESO ISS PBL34 END | 62.466 |
| HIERARCH ESO ISS PBLA34 START | 111.359 |
| HIERARCH ESO ISS PBLA34 END | 112.148 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009773 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008315 |
| HIERARCH ESO ISS AMBI TEMP | 17.55 |
| HIERARCH ESO ISS AMBI FWHM START | 0.44 |
| HIERARCH ESO ISS AMBI FWHM END | 0.55 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |