Exposure
- ID
- GRAVI.2025-08-10T00:05:05.771_2
- Header ID
- GRAVI.2025-08-10T00:05:05.771
- Date updated
- 2025-08-10 00:20:37 UTC+0000
- Release date
- 2026-08-10 00:20:37 UTC+0000
- UTC Start
- 2025-08-10 00:05:05.771
- UTC End
- 2025-08-10 00:11:05.771
- MJD Start
- 60897.00353902
- MJD End
- 60897.007705686665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003713
- Ambient temperature (°C)
- 12.67
- Seeing (arcsec)
- 0.87
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 | 56.5340 | 56.5450 | 18.0000 | 18.8000 |
| U1-U3 | 102.2490 | 102.3070 | 24.1000 | 24.9000 |
| U1-U4 | 128.1010 | 128.5310 | 51.4690 | 52.4060 |
| U2-U3 | 46.4280 | 46.4820 | 31.5000 | 32.4000 |
| U2-U4 | 86.7730 | 87.2600 | 72.5520 | 73.4360 |
| U3-U4 | 60.0640 | 60.4590 | 103.0510 | 103.7480 |
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 | 60897.00353902 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.41669 |
| DEC | -29.00648 |
| 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 | 56.534 |
| HIERARCH ESO ISS PBL12 END | 56.545 |
| HIERARCH ESO ISS PBLA12 START | 18.0 |
| HIERARCH ESO ISS PBLA12 END | 18.8 |
| HIERARCH ESO ISS PBL13 START | 102.249 |
| HIERARCH ESO ISS PBL13 END | 102.307 |
| HIERARCH ESO ISS PBLA13 START | 24.1 |
| HIERARCH ESO ISS PBLA13 END | 24.9 |
| HIERARCH ESO ISS PBL14 START | 128.101 |
| HIERARCH ESO ISS PBL14 END | 128.531 |
| HIERARCH ESO ISS PBLA14 START | 51.469 |
| HIERARCH ESO ISS PBLA14 END | 52.406 |
| HIERARCH ESO ISS PBL23 START | 46.428 |
| HIERARCH ESO ISS PBL23 END | 46.482 |
| HIERARCH ESO ISS PBLA23 START | 31.5 |
| HIERARCH ESO ISS PBLA23 END | 32.4 |
| HIERARCH ESO ISS PBL24 START | 86.773 |
| HIERARCH ESO ISS PBL24 END | 87.26 |
| HIERARCH ESO ISS PBLA24 START | 72.552 |
| HIERARCH ESO ISS PBLA24 END | 73.436 |
| HIERARCH ESO ISS PBL34 START | 60.064 |
| HIERARCH ESO ISS PBL34 END | 60.459 |
| HIERARCH ESO ISS PBLA34 START | 103.051 |
| HIERARCH ESO ISS PBLA34 END | 103.748 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003696 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00373 |
| HIERARCH ESO ISS AMBI TEMP | 12.67 |
| HIERARCH ESO ISS AMBI FWHM START | 0.83 |
| HIERARCH ESO ISS AMBI FWHM END | 0.91 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |