Observation information
- date-obs: 2016-11-24
- time-obs: 11:21:28.113700000
- date-end: 2016-11-24
- time-end: 15:00:14.112800000
- obs_id: C02_018T01_9000000822
- exposure: 6846.78003792
- 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_06268cztM0_level2.evt
| modeM0/AS1C02_018T01_9000000822_06268cztM0_level2_quad_clean.evt
|
| Size (bytes) | 874,958,400 | 140,474,880 |
| Size | 834.4 MB
| 134.0 MB
|
| Events in quadrant A | 5,427,600 | 894,619 |
| Events in quadrant B | 6,690,055 | 879,844 |
| Events in quadrant C | 4,862,084 | 905,069 |
| Events in quadrant D | 8,795,879 | 834,676 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 220 | 0 |
| B | 0 | 220 | 0 |
| C | 0 | 220 | 0 |
| D | 0 | 220 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23330 | 3 |
| B | 0 | 27032 | 2 |
| C | 0 | 22042 | 2 |
| D | 0 | 33511 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 10681 | 179 | 1.675873% |
| B | 10681 | 443 | 4.147552% |
| C | 10681 | 79 | 0.739631% |
| D | 10681 | 603 | 5.645539% |
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 | 13126 | 10681 | 3 | 3 | 0.02% | 0.03% |  |
| B | 13126 | 10681 | 263 | 263 | 2.00% | 2.46% |  |
| C | 13126 | 10683 | 0 | 0 | 0.00% | 0.00% |  |
| D | 13126 | 10681 | 524 | 524 | 3.99% | 4.91% |  |
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 | 15 | 236 | 354098 | 1343.88 | 1284 | 1256 | 262.6 |
| A | 8 | 15 | 87716 | 329.3 | 1284 | 1256 | 262.6 |
| A | 15 | 174 | 45570 | 168.78 | 1284 | 1256 | 262.6 |
| B | 5 | 172 | 710103 | 2920.75 | 1276 | 1249 | 242.7 |
| B | 3 | 64 | 360386 | 1479.78 | 1276 | 1249 | 242.7 |
| B | 0 | 214 | 251759 | 1032.2 | 1276 | 1249 | 242.7 |
| C | 8 | 128 | 9916 | 30.4 | 1239 | 1245 | 285.3 |
| C | 13 | 61 | 9891 | 30.31 | 1239 | 1245 | 285.3 |
| C | 9 | 54 | 8935 | 26.96 | 1239 | 1245 | 285.3 |
| D | 12 | 220 | 2644304 | 8767.77 | 1218 | 1177 | 301.5 |
| D | 12 | 221 | 460525 | 1523.75 | 1218 | 1177 | 301.5 |
| D | 2 | 152 | 268912 | 888.13 | 1218 | 1177 | 301.5 |
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 |  |