Observation information
- date-obs: 2018-09-12
- time-obs: 17:06:17.268000000
- date-end: 2018-09-12
- time-end: 19:36:36.264000000
- obs_id: T02_090T01_9000002360
- exposure: 3722.16282639
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_090T01_9000002360_15995cztM0_level2.evt
| modeM0/AS1T02_090T01_9000002360_15995cztM0_level2_quad_clean.evt
|
| Size (bytes) | 528,491,520 | 91,774,080 |
| Size | 504.0 MB
| 87.5 MB
|
| Events in quadrant A | 3,518,063 | 595,778 |
| Events in quadrant B | 4,760,946 | 584,132 |
| Events in quadrant C | 3,660,080 | 582,424 |
| Events in quadrant D | 3,634,581 | 572,670 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14294 | 3 |
| B | 0 | 18351 | 2 |
| C | 0 | 14903 | 2 |
| D | 0 | 15011 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 0 |
| B | 0 | 27 | 0 |
| C | 0 | 27 | 0 |
| D | 0 | 27 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6359 | 170 | 2.673376% |
| B | 6359 | 586 | 9.215285% |
| C | 6359 | 256 | 4.025790% |
| D | 6359 | 178 | 2.799182% |
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 | 9020 | 6360 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9020 | 6360 | 291 | 291 | 3.23% | 4.58% |  |
| C | 9020 | 6360 | 20 | 20 | 0.22% | 0.31% |  |
| D | 9020 | 6360 | 22 | 22 | 0.24% | 0.35% |  |
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 | 239 | 63409 | 344.68 | 898 | 882 | 181.4 |
| A | 0 | 226 | 7998 | 39.23 | 898 | 882 | 181.4 |
| A | 12 | 194 | 6636 | 31.72 | 898 | 882 | 181.4 |
| B | 7 | 220 | 670861 | 4145.44 | 864 | 847 | 161.6 |
| B | 10 | 245 | 377653 | 2331.33 | 864 | 847 | 161.6 |
| B | 4 | 173 | 152072 | 935.64 | 864 | 847 | 161.6 |
| C | 14 | 238 | 133964 | 657.79 | 867 | 877 | 202.3 |
| C | 0 | 207 | 80871 | 395.37 | 867 | 877 | 202.3 |
| C | 3 | 233 | 44256 | 214.4 | 867 | 877 | 202.3 |
| D | 2 | 152 | 132349 | 614.56 | 882 | 861 | 214.0 |
| D | 9 | 85 | 63099 | 290.89 | 882 | 861 | 214.0 |
| D | 12 | 218 | 42125 | 192.86 | 882 | 861 | 214.0 |
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 |  |