| Chandra X-ray Center | 	PI: Dr. CXC Calibration  | 
| Parameter | Value | Description | 
|---|---|---|
| ASCDSVER | 7.6.7.2 | Processing system revision | 
| DATE | 2006-04-26T12:38:14 | Date and time of file creation | 
| DATE-OBS | 2004-08-05T11:25:43 | Observation start date | 
| DATE-END | 2004-08-05T12:36:27 | Observation end date | 
| RA_PNT | 279.23048491167 | Pointing RA | 
| DEC_PNT | 38.780683833687 | Pointing Dec | 
| ROLL_PNT | 218.90009712273 | Pointing Roll | 
| RA_TARG | 279.235 | Observer's specified target RA | 
| DEC_TARG | 38.783778 | Observer's specified target Dec | 
| DEGAP | hrcsD1999-07-22gaplookupN0002.fits | 
| Parameter | Value | Description | 
|---|---|---|
| ASCDSVER | 7.6.7.2 | Processing system revision | 
| DATE | 2006-04-26T13:50:39 | Date and time of file creation | 
| DATE-OBS | 2004-08-05T11:25:43 | Observation start date | 
| DATE-END | 2004-08-05T12:36:27 | Observation end date | 
| INSTRUME | HRC | Instrument | 
| DETNAM | HRC-S | Detector | 
| GRATING | NONE | Grating | 
| OBJECT | Vega | Source name | 
| TITLE | Monitoring the health of the HRC UV Ion shield | Proposal title | 
| OBSERVER | Dr. CXC Calibration | Principal investigator | 
| OBS_ID | 5343 | Observation id | 
| SEQ_NUM | 290440 | Sequence number | 
| RA_NOM | 279.23048491167 | Nominal RA | 
| DEC_NOM | 38.780683833687 | Nominal Dec | 
| ROLL_NOM | 218.90009712273 | Nominal Roll |