| Chandra X-ray Center | 	PI: Dr. FABRIZIO TAVECCHIO  | 
| Parameter | Value | Description | 
|---|---|---|
| ASCDSVER | 7.6.7.2 | ASCDS version number | 
| DATE | 2006-04-26T11:46:29 | Date and time of file creation | 
| DATE-OBS | 2004-08-04T05:01:50 | Observation start date | 
| DATE-END | 2004-08-04T11:09:43 | Observation end date | 
| RA_PNT | 343.48421175163 | Pointing RA | 
| DEC_PNT | 16.15577385687 | Pointing Dec | 
| ROLL_PNT | 138.23992707009 | Pointing Roll | 
| RA_TARG | 343.490417 | Observer's specified target RA | 
| DEC_TARG | 16.148194 | Observer's specified target Dec | 
| DATAMODE | FAINT | Data mode | 
| READMODE | TIMED | Read mode | 
| FP_TEMP | 153.2848053 | Focal Plane Temperature [K] | 
| FSW_VERS | 31 | ACIS flight software version number | 
| Parameter | Value | Description | 
|---|---|---|
| ASCDSVER | 7.6.7.2 | ASCDS version number | 
| DATE | 2006-04-26T13:20:17 | Date and time of file creation | 
| DATE-OBS | 2004-08-04T05:01:50 | Observation start date | 
| DATE-END | 2004-08-04T11:09:43 | Observation end date | 
| INSTRUME | ACIS | Instrument | 
| DETNAM | ACIS-7 | Detector | 
| GRATING | NONE | Grating | 
| OBJECT | 3C454.3 | Source name | 
| TITLE | The Physics of Relativistic Jets: Chandra Imaging of Extended Jets in Gamma-loud Blazars | Proposal title | 
| OBSERVER | Dr. FABRIZIO TAVECCHIO | Principal investigator | 
| OBS_ID | 4843 | Observation id | 
| SEQ_NUM | 700925 | Sequence number | 
| RA_NOM | 343.48421175163 | Nominal RA | 
| DEC_NOM | 16.15577385687 | Nominal Dec | 
| ROLL_NOM | 138.23992707009 | Nominal Roll |