Exposure
- ID
- GRAVI.2025-08-08T00:04:50.325_2
- Header ID
- GRAVI.2025-08-08T00:04:50.325
- Date updated
- 2025-08-08 00:20:38 UTC+0000
- Release date
- 2026-08-08 00:20:38 UTC+0000
- UTC Start
- 2025-08-08 00:04:50.325
- UTC End
- 2025-08-08 00:10:50.325
- MJD Start
- 60895.00336024
- MJD End
- 60895.007526906666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0045015
- Ambient temperature (°C)
- 12.88
- Seeing (arcsec)
- 0.625
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 | 56.5160 | 56.5300 | 16.9000 | 17.7000 |
| U1-U3 | 102.1650 | 102.2320 | 23.0000 | 23.8000 |
| U1-U4 | 127.5020 | 127.9820 | 50.2660 | 51.2250 |
| U2-U3 | 46.3510 | 46.4120 | 30.4000 | 31.3000 |
| U2-U4 | 86.0970 | 86.6390 | 71.4220 | 72.3220 |
| U3-U4 | 59.5160 | 59.9550 | 102.1840 | 102.8730 |
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 | 60895.00336024 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416188 |
| DEC | -29.007 |
| 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 | 56.516 |
| HIERARCH ESO ISS PBL12 END | 56.53 |
| HIERARCH ESO ISS PBLA12 START | 16.9 |
| HIERARCH ESO ISS PBLA12 END | 17.7 |
| HIERARCH ESO ISS PBL13 START | 102.165 |
| HIERARCH ESO ISS PBL13 END | 102.232 |
| HIERARCH ESO ISS PBLA13 START | 23.0 |
| HIERARCH ESO ISS PBLA13 END | 23.8 |
| HIERARCH ESO ISS PBL14 START | 127.502 |
| HIERARCH ESO ISS PBL14 END | 127.982 |
| HIERARCH ESO ISS PBLA14 START | 50.266 |
| HIERARCH ESO ISS PBLA14 END | 51.225 |
| HIERARCH ESO ISS PBL23 START | 46.351 |
| HIERARCH ESO ISS PBL23 END | 46.412 |
| HIERARCH ESO ISS PBLA23 START | 30.4 |
| HIERARCH ESO ISS PBLA23 END | 31.3 |
| HIERARCH ESO ISS PBL24 START | 86.097 |
| HIERARCH ESO ISS PBL24 END | 86.639 |
| HIERARCH ESO ISS PBLA24 START | 71.422 |
| HIERARCH ESO ISS PBLA24 END | 72.322 |
| HIERARCH ESO ISS PBL34 START | 59.516 |
| HIERARCH ESO ISS PBL34 END | 59.955 |
| HIERARCH ESO ISS PBLA34 START | 102.184 |
| HIERARCH ESO ISS PBLA34 END | 102.873 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004319 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004684 |
| HIERARCH ESO ISS AMBI TEMP | 12.88 |
| HIERARCH ESO ISS AMBI FWHM START | 0.63 |
| HIERARCH ESO ISS AMBI FWHM END | 0.62 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |