Observation information
- date-obs: 2015-10-10
- time-obs: 00:06:11.981500000
- date-end: 2015-10-10
- time-end: 02:08:42.969400000
- obs_id: P01_134T04_9000000012
- exposure: 4082.44529427
- sourceid: Crab on null 4
- observer: santoshv
- ra_pnt: 89.8964765511
- dec_pnt: 22.1078587317
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_134T04_9000000012_00177cztM0_level2.evt
| modeM0/AS1P01_134T04_9000000012_00177cztM0_level2_quad_clean.evt
|
| Size (bytes) | 933,932,160 | 62,418,240 |
| Size | 890.7 MB
| 59.5 MB
|
| Events in quadrant A | 6,723,672 | 370,544 |
| Events in quadrant B | 6,802,196 | 378,772 |
| Events in quadrant C | 6,173,734 | 376,563 |
| Events in quadrant D | 8,202,442 | 362,283 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24082 | 2 |
| B | 0 | 24276 | 1 |
| C | 0 | 22455 | 1 |
| D | 0 | 28445 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5761 | 10 | 0.173581% |
| B | 5761 | 31 | 0.538101% |
| C | 5761 | 23 | 0.399236% |
| D | 5761 | 240 | 4.165943% |
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 | 7352 | 5763 | 157 | 157 | 2.14% | 2.72% |  |
| B | 7352 | 5763 | 167 | 167 | 2.27% | 2.90% |  |
| C | 7352 | 5763 | 95 | 95 | 1.29% | 1.65% |  |
| D | 7352 | 5763 | 813 | 813 | 11.06% | 14.11% |  |
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 | 14 | 10 | 71406 | 189.57 | 1673 | 1660 | 367.9 |
| A | 7 | 128 | 48662 | 127.75 | 1673 | 1660 | 367.9 |
| A | 0 | 6 | 38732 | 100.76 | 1673 | 1660 | 367.9 |
| B | 10 | 199 | 212548 | 533.55 | 1692 | 1706 | 395.2 |
| B | 8 | 5 | 60923 | 149.85 | 1692 | 1706 | 395.2 |
| B | 5 | 216 | 14867 | 33.3 | 1692 | 1706 | 395.2 |
| C | 0 | 202 | 95065 | 218.85 | 1525 | 1582 | 427.2 |
| C | 9 | 201 | 29497 | 65.35 | 1525 | 1582 | 427.2 |
| C | 10 | 33 | 10081 | 19.9 | 1525 | 1582 | 427.2 |
| D | 2 | 121 | 1014603 | 2216.49 | 1481 | 1529 | 457.1 |
| D | 13 | 89 | 733908 | 1602.36 | 1481 | 1529 | 457.1 |
| D | 2 | 239 | 303757 | 661.24 | 1481 | 1529 | 457.1 |
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 |  |