Observation information
- date-obs: 2018-11-29
- time-obs: 09:22:00.372500000
- date-end: 2018-11-29
- time-end: 11:07:17.373000000
- obs_id: C04_004T01_9000002542
- exposure: 3804.02079919
- sourceid: SSM1_Crab
- observer: ramadevi
- ra_pnt: 304.9241
- dec_pnt: 28.5588
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_004T01_9000002542_17146cztM0_level2.evt
| modeM0/AS1C04_004T01_9000002542_17146cztM0_level2_quad_clean.evt
|
| Size (bytes) | 389,989,440 | 72,852,480 |
| Size | 371.9 MB
| 69.5 MB
|
| Events in quadrant A | 2,737,020 | 454,596 |
| Events in quadrant B | 2,793,637 | 463,212 |
| Events in quadrant C | 3,194,296 | 439,163 |
| Events in quadrant D | 2,684,300 | 436,856 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12126 | 1 |
| B | 0 | 12181 | 1 |
| C | 0 | 13320 | 1 |
| D | 0 | 12236 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5897 | 84 | 1.424453% |
| B | 5898 | 95 | 1.610715% |
| C | 5898 | 156 | 2.644964% |
| D | 5898 | 73 | 1.237708% |
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 | 6317 | 5897 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6318 | 5898 | 0 | 0 | 0.00% | 0.00% |  |
| C | 6318 | 5899 | 2 | 2 | 0.03% | 0.03% |  |
| D | 6318 | 5898 | 9 | 9 | 0.14% | 0.15% |  |
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 | 12 | 189 | 34904 | 238.06 | 701 | 685 | 143.7 |
| A | 12 | 96 | 6990 | 43.86 | 701 | 685 | 143.7 |
| A | 0 | 226 | 6023 | 37.14 | 701 | 685 | 143.7 |
| B | 12 | 111 | 16269 | 113.74 | 700 | 681 | 137.1 |
| B | 11 | 111 | 14533 | 101.07 | 700 | 681 | 137.1 |
| B | 4 | 173 | 12057 | 83.01 | 700 | 681 | 137.1 |
| C | 3 | 233 | 476733 | 2995.23 | 670 | 674 | 158.9 |
| C | 14 | 238 | 102466 | 640.45 | 670 | 674 | 158.9 |
| C | 13 | 61 | 4659 | 25.07 | 670 | 674 | 158.9 |
| D | 10 | 70 | 60378 | 356.52 | 683 | 663 | 167.5 |
| D | 2 | 234 | 26367 | 153.46 | 683 | 663 | 167.5 |
| D | 1 | 52 | 14791 | 84.35 | 683 | 663 | 167.5 |
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 |  |