Exposure
- ID
- GRAVI.2025-07-07T03:20:18.980_2
- Header ID
- GRAVI.2025-07-07T03:20:18.980
- Date updated
- 2025-07-07 03:35:34 UTC+0000
- Release date
- 2026-07-07 03:35:34 UTC+0000
- UTC Start
- 2025-07-07 03:20:18.980
- UTC End
- 2025-07-07 03:26:18.980
- MJD Start
- 60863.13910857
- MJD End
- 60863.14327523667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0065845
- Ambient temperature (°C)
- 14.11
- Seeing (arcsec)
- 0.57
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 | 56.4680 | 56.4300 | 25.3000 | 26.0000 |
| U1-U3 | 102.3050 | 102.2290 | 31.7000 | 32.4000 |
| U1-U4 | 130.1960 | 130.1270 | 59.6430 | 60.4090 |
| U2-U3 | 46.6010 | 46.5650 | 39.4000 | 40.1000 |
| U2-U4 | 89.4190 | 89.4250 | 80.5000 | 81.2840 |
| U3-U4 | 62.3850 | 62.4440 | 109.9420 | 110.7050 |
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 | 60863.13910857 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416203 |
| 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 | 56.468 |
| HIERARCH ESO ISS PBL12 END | 56.43 |
| HIERARCH ESO ISS PBLA12 START | 25.3 |
| HIERARCH ESO ISS PBLA12 END | 26.0 |
| HIERARCH ESO ISS PBL13 START | 102.305 |
| HIERARCH ESO ISS PBL13 END | 102.229 |
| HIERARCH ESO ISS PBLA13 START | 31.7 |
| HIERARCH ESO ISS PBLA13 END | 32.4 |
| HIERARCH ESO ISS PBL14 START | 130.196 |
| HIERARCH ESO ISS PBL14 END | 130.127 |
| HIERARCH ESO ISS PBLA14 START | 59.643 |
| HIERARCH ESO ISS PBLA14 END | 60.409 |
| HIERARCH ESO ISS PBL23 START | 46.601 |
| HIERARCH ESO ISS PBL23 END | 46.565 |
| HIERARCH ESO ISS PBLA23 START | 39.4 |
| HIERARCH ESO ISS PBLA23 END | 40.1 |
| HIERARCH ESO ISS PBL24 START | 89.419 |
| HIERARCH ESO ISS PBL24 END | 89.425 |
| HIERARCH ESO ISS PBLA24 START | 80.5 |
| HIERARCH ESO ISS PBLA24 END | 81.284 |
| HIERARCH ESO ISS PBL34 START | 62.385 |
| HIERARCH ESO ISS PBL34 END | 62.444 |
| HIERARCH ESO ISS PBLA34 START | 109.942 |
| HIERARCH ESO ISS PBLA34 END | 110.705 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00597 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007199 |
| HIERARCH ESO ISS AMBI TEMP | 14.11 |
| HIERARCH ESO ISS AMBI FWHM START | 0.57 |
| HIERARCH ESO ISS AMBI FWHM END | 0.57 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |