Exposure
- ID
- GRAVI.2024-07-18T03:54:48.596_2
- Header ID
- GRAVI.2024-07-18T03:54:48.596
- Date updated
- 2024-07-18 08:45:42 UTC+0000
- Release date
- 2025-07-18 08:45:39 UTC+0000
- UTC Start
- 2024-07-18 03:54:48.596
- UTC End
- 2024-07-18 04:00:48.596
- MJD Start
- 60509.16306245
- MJD End
- 60509.1672291167
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008217
- Ambient temperature (°C)
- 16.94
- Seeing (arcsec)
- 0.475
Observation
- ID
- 60139
- Category
- science
- Program ID
- 113.268P.004
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
- Program Type
- GTO
- PI / COI
- EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
- ID
- 43560
- Name
- IRS16C
- RA
- 266.417083333333
- DEC
- -29.0076816944444
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 | 55.3830 | 55.2230 | 33.0000 | 33.5000 |
| U1-U3 | 99.8360 | 99.4630 | 39.3000 | 39.9000 |
| U1-U4 | 124.9700 | 124.0990 | 68.1250 | 68.7510 |
| U2-U3 | 45.2130 | 44.9980 | 47.1000 | 47.7000 |
| U2-U4 | 85.8370 | 85.1920 | 89.9360 | 90.7220 |
| U3-U4 | 60.9650 | 60.6620 | 120.1890 | 121.1420 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.268P.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60509.16306245 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416896 |
| DEC | -29.00733 |
| 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 | 55.383 |
| HIERARCH ESO ISS PBL12 END | 55.223 |
| HIERARCH ESO ISS PBLA12 START | 33.0 |
| HIERARCH ESO ISS PBLA12 END | 33.5 |
| HIERARCH ESO ISS PBL13 START | 99.836 |
| HIERARCH ESO ISS PBL13 END | 99.463 |
| HIERARCH ESO ISS PBLA13 START | 39.3 |
| HIERARCH ESO ISS PBLA13 END | 39.9 |
| HIERARCH ESO ISS PBL14 START | 124.97 |
| HIERARCH ESO ISS PBL14 END | 124.099 |
| HIERARCH ESO ISS PBLA14 START | 68.125 |
| HIERARCH ESO ISS PBLA14 END | 68.751 |
| HIERARCH ESO ISS PBL23 START | 45.213 |
| HIERARCH ESO ISS PBL23 END | 44.998 |
| HIERARCH ESO ISS PBLA23 START | 47.1 |
| HIERARCH ESO ISS PBLA23 END | 47.7 |
| HIERARCH ESO ISS PBL24 START | 85.837 |
| HIERARCH ESO ISS PBL24 END | 85.192 |
| HIERARCH ESO ISS PBLA24 START | 89.936 |
| HIERARCH ESO ISS PBLA24 END | 90.722 |
| HIERARCH ESO ISS PBL34 START | 60.965 |
| HIERARCH ESO ISS PBL34 END | 60.662 |
| HIERARCH ESO ISS PBLA34 START | 120.189 |
| HIERARCH ESO ISS PBLA34 END | 121.142 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006721 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009713 |
| HIERARCH ESO ISS AMBI TEMP | 16.94 |
| HIERARCH ESO ISS AMBI FWHM START | 0.46 |
| HIERARCH ESO ISS AMBI FWHM END | 0.49 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |