Exposure
- ID
- GRAVI.2025-05-12T04:57:34.405_2
- Header ID
- GRAVI.2025-05-12T04:57:34.405
- 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 04:57:34.405
- UTC End
- 2025-05-12 05:03:34.405
- MJD Start
- 60807.20664821
- MJD End
- 60807.210814876664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007197
- Ambient temperature (°C)
- 17.25
- Seeing (arcsec)
- 0.525
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 | 56.3480 | 56.3690 | 9.7000 | 10.6000 |
| U1-U3 | 101.4390 | 101.5320 | 15.3000 | 16.3000 |
| U1-U4 | 122.2850 | 123.0090 | 41.4440 | 42.6050 |
| U2-U3 | 45.6920 | 45.7790 | 22.2000 | 23.3000 |
| U2-U4 | 80.0620 | 80.9260 | 63.1810 | 64.2710 |
| U3-U4 | 54.5290 | 55.2610 | 96.5110 | 97.2050 |
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 | 60807.20664821 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416274 |
| 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 | 56.348 |
| HIERARCH ESO ISS PBL12 END | 56.369 |
| HIERARCH ESO ISS PBLA12 START | 9.7 |
| HIERARCH ESO ISS PBLA12 END | 10.6 |
| HIERARCH ESO ISS PBL13 START | 101.439 |
| HIERARCH ESO ISS PBL13 END | 101.532 |
| HIERARCH ESO ISS PBLA13 START | 15.3 |
| HIERARCH ESO ISS PBLA13 END | 16.3 |
| HIERARCH ESO ISS PBL14 START | 122.285 |
| HIERARCH ESO ISS PBL14 END | 123.009 |
| HIERARCH ESO ISS PBLA14 START | 41.444 |
| HIERARCH ESO ISS PBLA14 END | 42.605 |
| HIERARCH ESO ISS PBL23 START | 45.692 |
| HIERARCH ESO ISS PBL23 END | 45.779 |
| HIERARCH ESO ISS PBLA23 START | 22.2 |
| HIERARCH ESO ISS PBLA23 END | 23.3 |
| HIERARCH ESO ISS PBL24 START | 80.062 |
| HIERARCH ESO ISS PBL24 END | 80.926 |
| HIERARCH ESO ISS PBLA24 START | 63.181 |
| HIERARCH ESO ISS PBLA24 END | 64.271 |
| HIERARCH ESO ISS PBL34 START | 54.529 |
| HIERARCH ESO ISS PBL34 END | 55.261 |
| HIERARCH ESO ISS PBLA34 START | 96.511 |
| HIERARCH ESO ISS PBLA34 END | 97.205 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007048 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007346 |
| HIERARCH ESO ISS AMBI TEMP | 17.25 |
| HIERARCH ESO ISS AMBI FWHM START | 0.53 |
| HIERARCH ESO ISS AMBI FWHM END | 0.52 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |