Observation information
- date-obs: 2015-11-14
- time-obs: 08-19-35.000008283
- date-end: 2015-11-14
- time-end: 10-29-07.000008243
- obs_id: P01_141T01_9000000100
- exposure: 3979.51394173
- sourceid: Crab
- observer: santoshv
- ra_pnt: 83.62586
- dec_pnt: 22.02464
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_141T01_9000000100_00700cztM0_level2.evt
| modeM0/AS1P01_141T01_9000000100_00700cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,535,330,880 | 75,813,120 |
| Size | 1.4 GB
| 72.3 MB
|
| Events in quadrant A | 9,752,770 | 454,495 |
| Events in quadrant B | 10,241,826 | 458,251 |
| Events in quadrant C | 11,408,953 | 443,245 |
| Events in quadrant D | 14,592,804 | 407,542 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34421 | 1 |
| B | 0 | 35920 | 1 |
| C | 0 | 39307 | 1 |
| D | 0 | 48701 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7648 | 151 | 1.974372% |
| B | 7648 | 162 | 2.118201% |
| C | 7648 | 184 | 2.405858% |
| D | 7647 | 320 | 4.184648% |
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 | 7773 | 7650 | 468 | 468 | 6.02% | 6.12% |  |
| B | 7773 | 7650 | 543 | 543 | 6.99% | 7.10% |  |
| C | 7773 | 7650 | 652 | 652 | 8.39% | 8.52% |  |
| D | 7772 | 7649 | 3168 | 3168 | 40.76% | 41.42% |  |
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 | 15 | 69 | 170113 | 275.57 | 2493 | 2511 | 608.2 |
| A | 15 | 171 | 10251 | 12.73 | 2493 | 2511 | 608.2 |
| A | 11 | 79 | 8856 | 10.43 | 2493 | 2511 | 608.2 |
| B | 7 | 221 | 320585 | 521.0 | 2560 | 2580 | 610.4 |
| B | 0 | 220 | 82844 | 131.5 | 2560 | 2580 | 610.4 |
| B | 5 | 247 | 45221 | 69.86 | 2560 | 2580 | 610.4 |
| C | 3 | 95 | 529221 | 803.32 | 2327 | 2419 | 655.8 |
| C | 3 | 31 | 459058 | 696.33 | 2327 | 2419 | 655.8 |
| C | 3 | 15 | 364844 | 552.66 | 2327 | 2419 | 655.8 |
| D | 0 | 25 | 5529453 | 7805.4 | 2263 | 2345 | 708.1 |
| D | 12 | 233 | 232593 | 325.16 | 2263 | 2345 | 708.1 |
| D | 1 | 4 | 171818 | 239.33 | 2263 | 2345 | 708.1 |
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 |  |