Observation information
- date-obs: 2018-10-14
- time-obs: 14:18:54.178200000
- date-end: 2018-10-14
- time-end: 16:19:04.174800000
- obs_id: C04_008T01_9000002434
- exposure: 2269.9352698
- sourceid: Crab Offset
- observer: arrao
- ra_pnt: 83.428
- dec_pnt: 22.015
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_008T01_9000002434_16466cztM0_level2.evt
| modeM0/AS1C04_008T01_9000002434_16466cztM0_level2_quad_clean.evt
|
| Size (bytes) | 245,206,080 | 49,481,280 |
| Size | 233.8 MB
| 47.2 MB
|
| Events in quadrant A | 1,735,880 | 315,754 |
| Events in quadrant B | 1,828,219 | 318,672 |
| Events in quadrant C | 1,813,797 | 306,823 |
| Events in quadrant D | 1,797,532 | 298,299 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12788 | 5326 |
| B | 0 | 13661 | 6065 |
| C | 0 | 12823 | 5369 |
| D | 0 | 14209 | 6464 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 46 |
| B | 0 | 125 | 51 |
| C | 0 | 127 | 61 |
| D | 0 | 123 | 51 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 9 |
| B | 0 | 7 | 5 |
| C | 0 | 8 | 7 |
| D | 0 | 7 | 7 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3652 | 3 | 0.082147% |
| B | 3626 | 11 | 0.303365% |
| C | 3676 | 16 | 0.435256% |
| D | 3609 | 10 | 0.277085% |
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 | 7192 | 4191 | 2 | 2 | 0.03% | 0.05% |  |
| B | 7189 | 4152 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7191 | 4197 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7084 | 4129 | 9 | 9 | 0.13% | 0.22% |  |
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 | 174 | 47699 | 519.23 | 439 | 431 | 91.0 |
| A | 0 | 226 | 3909 | 38.21 | 439 | 431 | 91.0 |
| A | 12 | 194 | 3173 | 30.12 | 439 | 431 | 91.0 |
| B | 15 | 35 | 57443 | 675.78 | 437 | 427 | 84.4 |
| B | 0 | 198 | 21069 | 244.66 | 437 | 427 | 84.4 |
| B | 4 | 173 | 12974 | 148.71 | 437 | 427 | 84.4 |
| C | 14 | 238 | 65711 | 644.2 | 426 | 430 | 101.3 |
| C | 7 | 247 | 61680 | 604.42 | 426 | 430 | 101.3 |
| C | 3 | 233 | 24255 | 235.1 | 426 | 430 | 101.3 |
| D | 12 | 218 | 110946 | 1052.86 | 421 | 409 | 105.0 |
| D | 12 | 110 | 54546 | 515.65 | 421 | 409 | 105.0 |
| D | 2 | 234 | 18116 | 168.66 | 421 | 409 | 105.0 |
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 |  |