Observation information
- date-obs: 2016-11-08
- time-obs: 20:40:52.275800000
- date-end: 2016-11-08
- time-end: 22:42:32.279200000
- obs_id: A02_090T01_9000000778
- exposure: 4479.78009503
- sourceid: Crab
- observer: tanmoy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_090T01_9000000778_06036cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000778_06036cztM0_level2_quad_clean.evt
|
| Size (bytes) | 493,899,840 | 98,029,440 |
| Size | 471.0 MB
| 93.5 MB
|
| Events in quadrant A | 4,843,161 | 637,356 |
| Events in quadrant B | 4,072,077 | 646,316 |
| Events in quadrant C | 2,837,686 | 650,412 |
| Events in quadrant D | 2,798,264 | 615,923 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18623 | 2 |
| B | 0 | 15999 | 1 |
| C | 0 | 12311 | 1 |
| D | 0 | 12524 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5995 | 124 | 2.068390% |
| B | 5995 | 294 | 4.904087% |
| C | 5995 | 11 | 0.183486% |
| D | 5995 | 12 | 0.200167% |
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 | 7300 | 5996 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7300 | 5996 | 228 | 228 | 3.12% | 3.80% |  |
| C | 7300 | 5996 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7300 | 5996 | 4 | 4 | 0.05% | 0.07% |  |
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 | 13 | 34 | 1980226 | 13211.13 | 730 | 715 | 149.8 |
| A | 8 | 15 | 30003 | 195.46 | 730 | 715 | 149.8 |
| A | 14 | 111 | 18620 | 119.49 | 730 | 715 | 149.8 |
| B | 3 | 64 | 1090970 | 7801.63 | 736 | 722 | 139.7 |
| B | 15 | 204 | 25996 | 180.86 | 736 | 722 | 139.7 |
| B | 0 | 219 | 25190 | 175.09 | 736 | 722 | 139.7 |
| C | 14 | 67 | 22463 | 130.11 | 718 | 728 | 167.0 |
| C | 1 | 16 | 9524 | 52.66 | 718 | 728 | 167.0 |
| C | 13 | 61 | 5906 | 31.0 | 718 | 728 | 167.0 |
| D | 8 | 195 | 47722 | 269.11 | 709 | 689 | 174.8 |
| D | 2 | 33 | 26728 | 148.99 | 709 | 689 | 174.8 |
| D | 2 | 136 | 25033 | 139.29 | 709 | 689 | 174.8 |
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 |  |