Observation information
- date-obs: 2015-11-08
- time-obs: 09:37:10.215600000
- date-end: 2015-11-08
- time-end: 11:37:41.207100000
- obs_id: P01_126T01_9000000084
- exposure: 3022.82457971
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T01_9000000084_00612cztM0_level2.evt
| modeM0/AS1P01_126T01_9000000084_00612cztM0_level2_quad_clean.evt
|
| Size (bytes) | 818,976,960 | 48,680,640 |
| Size | 781.0 MB
| 46.4 MB
|
| Events in quadrant A | 6,109,399 | 279,999 |
| Events in quadrant B | 6,247,392 | 281,285 |
| Events in quadrant C | 5,773,590 | 280,588 |
| Events in quadrant D | 6,334,903 | 275,676 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21759 | 3 |
| B | 0 | 22133 | 2 |
| C | 0 | 20795 | 2 |
| D | 0 | 22420 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 0 |
| B | 0 | 104 | 0 |
| C | 0 | 104 | 0 |
| D | 0 | 104 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5076 | 8 | 0.157604% |
| B | 5076 | 15 | 0.295508% |
| C | 5076 | 35 | 0.689519% |
| D | 5076 | 100 | 1.970055% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7231 | 5077 | 116 | 116 | 1.60% | 2.28% |  |
| B | 7231 | 5077 | 122 | 122 | 1.69% | 2.40% |  |
| C | 7231 | 5077 | 120 | 120 | 1.66% | 2.36% |  |
| D | 7231 | 5077 | 300 | 300 | 4.15% | 5.91% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 0 | 238 | 35872 | 99.33 | 1551 | 1534 | 345.7 |
| A | 13 | 160 | 19154 | 50.97 | 1551 | 1534 | 345.7 |
| A | 0 | 149 | 18603 | 49.37 | 1551 | 1534 | 345.7 |
| B | 7 | 221 | 202785 | 558.25 | 1524 | 1533 | 360.5 |
| B | 0 | 220 | 62928 | 170.3 | 1524 | 1533 | 360.5 |
| B | 5 | 191 | 48344 | 129.85 | 1524 | 1533 | 360.5 |
| C | 15 | 241 | 220485 | 573.24 | 1368 | 1416 | 382.2 |
| C | 1 | 1 | 73090 | 187.55 | 1368 | 1416 | 382.2 |
| C | 10 | 19 | 55003 | 140.22 | 1368 | 1416 | 382.2 |
| D | 12 | 237 | 502515 | 1178.89 | 1348 | 1400 | 425.1 |
| D | 13 | 221 | 306366 | 717.44 | 1348 | 1400 | 425.1 |
| D | 1 | 4 | 177770 | 414.92 | 1348 | 1400 | 425.1 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |