Observation information
- date-obs: 2017-01-05
- time-obs: 04:57:51.739900000
- date-end: 2017-01-05
- time-end: 06:54:09.740600000
- obs_id: A02_005T01_9000000948
- exposure: 3954.37393537
- sourceid: Mrk421
- observer: ritaban
- ra_pnt: 166.1138
- dec_pnt: 38.20883
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_005T01_9000000948_06884cztM0_level2.evt
| modeM0/AS1A02_005T01_9000000948_06884cztM0_level2_quad_clean.evt
|
| Size (bytes) | 381,902,400 | 77,140,800 |
| Size | 364.2 MB
| 73.6 MB
|
| Events in quadrant A | 2,807,627 | 478,784 |
| Events in quadrant B | 2,769,286 | 487,541 |
| Events in quadrant C | 2,835,463 | 481,951 |
| Events in quadrant D | 2,741,500 | 464,954 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12564 | 2 |
| B | 0 | 12317 | 1 |
| C | 0 | 12624 | 1 |
| D | 0 | 12448 | 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 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6048 | 39 | 0.644841% |
| B | 6048 | 28 | 0.462963% |
| C | 6048 | 34 | 0.562169% |
| D | 6048 | 35 | 0.578704% |
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 | 6978 | 6049 | 7 | 7 | 0.10% | 0.12% |  |
| B | 6978 | 6049 | 1 | 1 | 0.01% | 0.02% |  |
| C | 6978 | 6049 | 4 | 4 | 0.06% | 0.07% |  |
| D | 6978 | 6049 | 8 | 8 | 0.11% | 0.13% |  |
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 | 15 | 124839 | 875.21 | 695 | 680 | 141.9 |
| A | 0 | 226 | 6650 | 42.08 | 695 | 680 | 141.9 |
| A | 12 | 194 | 6547 | 41.36 | 695 | 680 | 141.9 |
| B | 4 | 48 | 22938 | 165.47 | 697 | 680 | 134.5 |
| B | 0 | 214 | 16721 | 119.25 | 697 | 680 | 134.5 |
| B | 0 | 228 | 14137 | 100.04 | 697 | 680 | 134.5 |
| C | 9 | 247 | 197381 | 1263.18 | 669 | 672 | 155.7 |
| C | 9 | 54 | 22685 | 141.36 | 669 | 672 | 155.7 |
| C | 13 | 61 | 5139 | 28.69 | 669 | 672 | 155.7 |
| D | 8 | 195 | 76167 | 454.64 | 672 | 649 | 166.1 |
| D | 5 | 81 | 46964 | 278.83 | 672 | 649 | 166.1 |
| D | 13 | 169 | 31809 | 187.59 | 672 | 649 | 166.1 |
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 |  |