Exposure
- ID
- GRAVI.2025-05-12T06:20:04.616_2
- Header ID
- GRAVI.2025-05-12T06:20:04.616
- 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 06:20:04.616
- UTC End
- 2025-05-12 06:26:04.616
- MJD Start
- 60807.26394231
- MJD End
- 60807.26810897666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008314499999999999
- Ambient temperature (°C)
- 17.68
- Seeing (arcsec)
- 0.505
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 | 56.5590 | 56.5590 | 20.6000 | 21.4000 |
| U1-U3 | 102.4010 | 102.4240 | 26.8000 | 27.6000 |
| U1-U4 | 129.3390 | 129.6170 | 54.4540 | 55.3270 |
| U2-U3 | 46.5790 | 46.6080 | 34.4000 | 35.2000 |
| U2-U4 | 88.1900 | 88.5200 | 75.3870 | 76.2280 |
| U3-U4 | 61.2230 | 61.5020 | 105.3420 | 106.0550 |
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 | 60807.26394231 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416276 |
| DEC | -29.00737 |
| 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 | 56.559 |
| HIERARCH ESO ISS PBL12 END | 56.559 |
| HIERARCH ESO ISS PBLA12 START | 20.6 |
| HIERARCH ESO ISS PBLA12 END | 21.4 |
| HIERARCH ESO ISS PBL13 START | 102.401 |
| HIERARCH ESO ISS PBL13 END | 102.424 |
| HIERARCH ESO ISS PBLA13 START | 26.8 |
| HIERARCH ESO ISS PBLA13 END | 27.6 |
| HIERARCH ESO ISS PBL14 START | 129.339 |
| HIERARCH ESO ISS PBL14 END | 129.617 |
| HIERARCH ESO ISS PBLA14 START | 54.454 |
| HIERARCH ESO ISS PBLA14 END | 55.327 |
| HIERARCH ESO ISS PBL23 START | 46.579 |
| HIERARCH ESO ISS PBL23 END | 46.608 |
| HIERARCH ESO ISS PBLA23 START | 34.4 |
| HIERARCH ESO ISS PBLA23 END | 35.2 |
| HIERARCH ESO ISS PBL24 START | 88.19 |
| HIERARCH ESO ISS PBL24 END | 88.52 |
| HIERARCH ESO ISS PBLA24 START | 75.387 |
| HIERARCH ESO ISS PBLA24 END | 76.228 |
| HIERARCH ESO ISS PBL34 START | 61.223 |
| HIERARCH ESO ISS PBL34 END | 61.502 |
| HIERARCH ESO ISS PBLA34 START | 105.342 |
| HIERARCH ESO ISS PBLA34 END | 106.055 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007667 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008962 |
| HIERARCH ESO ISS AMBI TEMP | 17.68 |
| HIERARCH ESO ISS AMBI FWHM START | 0.56 |
| HIERARCH ESO ISS AMBI FWHM END | 0.45 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |