Observation information
- date-obs: 2015-10-09
- time-obs: 21:24:53.998500000
- date-end: 2015-10-09
- time-end: 22:38:35.990800000
- obs_id: P01_134T04_9000000012
- exposure: 1891.82485165
- sourceid: Crab on null 4
- observer: santoshv
- ra_pnt: 89.8892247133
- dec_pnt: 22.1082365331
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_134T04_9000000012_00175cztM0_level2.evt
| modeM0/AS1P01_134T04_9000000012_00175cztM0_level2_quad_clean.evt
|
| Size (bytes) | 518,760,000 | 30,885,120 |
| Size | 494.7 MB
| 29.5 MB
|
| Events in quadrant A | 3,523,223 | 191,577 |
| Events in quadrant B | 3,470,711 | 196,589 |
| Events in quadrant C | 3,243,173 | 194,227 |
| Events in quadrant D | 5,289,192 | 155,588 |
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 | 58 | 2 |
| B | 0 | 58 | 2 |
| C | 0 | 58 | 2 |
| D | 0 | 58 | 2 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12680 | 252 |
| B | 0 | 12537 | 256 |
| C | 0 | 11812 | 224 |
| D | 0 | 18174 | 405 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2764 | 10 | 0.361795% |
| B | 2761 | 9 | 0.325969% |
| C | 2763 | 3 | 0.108578% |
| D | 2761 | 643 | 23.288664% |
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 | 4411 | 2767 | 126 | 126 | 2.86% | 4.55% |  |
| B | 4407 | 2765 | 89 | 89 | 2.02% | 3.22% |  |
| C | 4412 | 2768 | 36 | 36 | 0.82% | 1.30% |  |
| D | 4408 | 2767 | 1043 | 1043 | 23.66% | 37.69% |  |
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 | 46685 | 236.24 | 880 | 876 | 193.9 |
| A | 15 | 184 | 39190 | 197.59 | 880 | 876 | 193.9 |
| A | 14 | 171 | 14427 | 69.88 | 880 | 876 | 193.9 |
| B | 5 | 216 | 69286 | 330.21 | 875 | 881 | 207.2 |
| B | 10 | 199 | 29358 | 137.46 | 875 | 881 | 207.2 |
| B | 15 | 64 | 4626 | 18.08 | 875 | 881 | 207.2 |
| C | 12 | 48 | 29654 | 128.09 | 797 | 827 | 225.0 |
| C | 0 | 188 | 25667 | 110.38 | 797 | 827 | 225.0 |
| C | 0 | 202 | 20356 | 86.78 | 797 | 827 | 225.0 |
| D | 2 | 121 | 2259621 | 10269.36 | 723 | 746 | 220.0 |
| D | 13 | 89 | 154252 | 697.87 | 723 | 746 | 220.0 |
| D | 12 | 14 | 24065 | 106.01 | 723 | 746 | 220.0 |
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 |  |