Observation information
- date-obs: 2017-11-20
- time-obs: 11:37:17.791600000
- date-end: 2017-11-20
- time-end: 13:31:54.785500000
- obs_id: C03_020T01_9000001706
- exposure: 4348.51130147
- sourceid: Crab
- observer: ramadevi
- ra_pnt: 335.4276
- dec_pnt: -7.9853
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_020T01_9000001706_11610cztM0_level2.evt
| modeM0/AS1C03_020T01_9000001706_11610cztM0_level2_quad_clean.evt
|
| Size (bytes) | 589,769,280 | 86,016,960 |
| Size | 562.4 MB
| 82.0 MB
|
| Events in quadrant A | 6,734,897 | 525,160 |
| Events in quadrant B | 4,293,210 | 560,169 |
| Events in quadrant C | 2,728,455 | 568,275 |
| Events in quadrant D | 3,704,650 | 538,092 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24076 | 2 |
| B | 0 | 16579 | 1 |
| C | 0 | 12146 | 1 |
| D | 0 | 15007 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5897 | 1357 | 23.011701% |
| B | 5897 | 438 | 7.427506% |
| C | 5897 | 55 | 0.932678% |
| D | 5897 | 220 | 3.730711% |
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 | 6878 | 5898 | 944 | 944 | 13.72% | 16.01% |  |
| B | 6878 | 5899 | 218 | 218 | 3.17% | 3.70% |  |
| C | 6878 | 5899 | 0 | 0 | 0.00% | 0.00% |  |
| D | 6878 | 5899 | 109 | 109 | 1.58% | 1.85% |  |
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 | 8 | 5 | 3707651 | 26587.24 | 681 | 667 | 139.4 |
| A | 1 | 162 | 141290 | 1008.58 | 681 | 667 | 139.4 |
| A | 1 | 178 | 82230 | 584.99 | 681 | 667 | 139.4 |
| B | 4 | 239 | 1173104 | 8534.41 | 711 | 696 | 137.4 |
| B | 3 | 64 | 188917 | 1370.13 | 711 | 696 | 137.4 |
| B | 0 | 219 | 46055 | 330.19 | 711 | 696 | 137.4 |
| C | 8 | 208 | 5491 | 29.65 | 698 | 701 | 161.5 |
| C | 13 | 61 | 5078 | 27.1 | 698 | 701 | 161.5 |
| C | 9 | 54 | 3695 | 18.53 | 698 | 701 | 161.5 |
| D | 1 | 52 | 879151 | 5238.44 | 695 | 676 | 167.7 |
| D | 13 | 104 | 29596 | 172.45 | 695 | 676 | 167.7 |
| D | 2 | 136 | 28203 | 164.15 | 695 | 676 | 167.7 |
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 |  |