Observation information
- date-obs: 2016-11-24
- time-obs: 07:48:40.119700000
- date-end: 2016-11-24
- time-end: 09:44:31.116200000
- obs_id: C02_018T01_9000000822
- exposure: 4666.61375505
- sourceid: Crab
- observer: ravibt
- ra_pnt: 310.9978
- dec_pnt: -16.051
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_018T01_9000000822_06265cztM0_level2.evt
| modeM0/AS1C02_018T01_9000000822_06265cztM0_level2_quad_clean.evt
|
| Size (bytes) | 462,251,520 | 92,972,160 |
| Size | 440.8 MB
| 88.7 MB
|
| Events in quadrant A | 3,028,653 | 604,342 |
| Events in quadrant B | 3,200,315 | 612,486 |
| Events in quadrant C | 2,669,322 | 618,641 |
| Events in quadrant D | 4,707,516 | 574,898 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12814 | 2 |
| B | 0 | 13256 | 1 |
| C | 0 | 11927 | 1 |
| D | 0 | 17794 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5796 | 87 | 1.501035% |
| B | 5796 | 121 | 2.087647% |
| C | 5796 | 44 | 0.759144% |
| D | 5796 | 354 | 6.107660% |
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 | 6951 | 5796 | 17 | 17 | 0.24% | 0.29% |  |
| B | 6951 | 5796 | 41 | 41 | 0.59% | 0.71% |  |
| C | 6951 | 5796 | 0 | 0 | 0.00% | 0.00% |  |
| D | 6951 | 5796 | 345 | 345 | 4.96% | 5.95% |  |
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 | 3 | 80 | 213725 | 1463.36 | 710 | 696 | 145.6 |
| A | 15 | 239 | 44265 | 299.29 | 710 | 696 | 145.6 |
| A | 8 | 15 | 28487 | 190.9 | 710 | 696 | 145.6 |
| B | 3 | 64 | 237635 | 1746.28 | 705 | 688 | 135.7 |
| B | 11 | 51 | 110077 | 806.19 | 705 | 688 | 135.7 |
| B | 0 | 219 | 42521 | 308.31 | 705 | 688 | 135.7 |
| C | 13 | 61 | 5492 | 30.26 | 683 | 687 | 158.8 |
| C | 8 | 222 | 3072 | 15.02 | 683 | 687 | 158.8 |
| C | 9 | 54 | 2598 | 12.03 | 683 | 687 | 158.8 |
| D | 12 | 220 | 1659398 | 9914.65 | 678 | 658 | 167.3 |
| D | 2 | 63 | 133574 | 794.47 | 678 | 658 | 167.3 |
| D | 2 | 152 | 132237 | 786.48 | 678 | 658 | 167.3 |
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 |  |