Exposure
- ID
- GRAVI.2025-08-10T02:32:54.148_2
- Header ID
- GRAVI.2025-08-10T02:32:54.148
- Date updated
- 2025-08-10 02:45:44 UTC+0000
- Release date
- 2026-08-10 02:45:44 UTC+0000
- UTC Start
- 2025-08-10 02:32:54.148
- UTC End
- 2025-08-10 02:38:54.148
- MJD Start
- 60897.10618227
- MJD End
- 60897.110348936665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0030555
- Ambient temperature (°C)
- 12.39
- Seeing (arcsec)
- 0.775
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 | 55.1960 | 55.0210 | 33.6000 | 34.1000 |
| U1-U3 | 99.3990 | 98.9910 | 39.9000 | 40.4000 |
| U1-U4 | 123.9490 | 122.9940 | 68.8510 | 69.4690 |
| U2-U3 | 44.9610 | 44.7250 | 47.8000 | 48.3000 |
| U2-U4 | 85.0810 | 84.3740 | 90.8510 | 91.6470 |
| U3-U4 | 60.6090 | 60.2780 | 121.3000 | 122.2800 |
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 | 60897.10618227 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417399 |
| DEC | -29.00662 |
| 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 | 55.196 |
| HIERARCH ESO ISS PBL12 END | 55.021 |
| HIERARCH ESO ISS PBLA12 START | 33.6 |
| HIERARCH ESO ISS PBLA12 END | 34.1 |
| HIERARCH ESO ISS PBL13 START | 99.399 |
| HIERARCH ESO ISS PBL13 END | 98.991 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 40.4 |
| HIERARCH ESO ISS PBL14 START | 123.949 |
| HIERARCH ESO ISS PBL14 END | 122.994 |
| HIERARCH ESO ISS PBLA14 START | 68.851 |
| HIERARCH ESO ISS PBLA14 END | 69.469 |
| HIERARCH ESO ISS PBL23 START | 44.961 |
| HIERARCH ESO ISS PBL23 END | 44.725 |
| HIERARCH ESO ISS PBLA23 START | 47.8 |
| HIERARCH ESO ISS PBLA23 END | 48.3 |
| HIERARCH ESO ISS PBL24 START | 85.081 |
| HIERARCH ESO ISS PBL24 END | 84.374 |
| HIERARCH ESO ISS PBLA24 START | 90.851 |
| HIERARCH ESO ISS PBLA24 END | 91.647 |
| HIERARCH ESO ISS PBL34 START | 60.609 |
| HIERARCH ESO ISS PBL34 END | 60.278 |
| HIERARCH ESO ISS PBLA34 START | 121.3 |
| HIERARCH ESO ISS PBLA34 END | 122.28 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00346 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002651 |
| HIERARCH ESO ISS AMBI TEMP | 12.39 |
| HIERARCH ESO ISS AMBI FWHM START | 0.78 |
| HIERARCH ESO ISS AMBI FWHM END | 0.77 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |