Observation information
- date-obs: 2017-12-22
- time-obs: 08:04:55.307200000
- date-end: 2017-12-22
- time-end: 08:31:34.307200000
- obs_id: A04_130T04_9000001794
- exposure: 1247.50903254
- sourceid: Mrk 421
- observer: Daniela
- ra_pnt: 166.1138
- dec_pnt: 38.20883
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_130T04_9000001794_12080cztM0_level2.evt
| modeM0/AS1A04_130T04_9000001794_12080cztM0_level2_quad_clean.evt
|
| Size (bytes) | 111,041,280 | 24,586,560 |
| Size | 105.9 MB
| 23.4 MB
|
| Events in quadrant A | 714,300 | 161,306 |
| Events in quadrant B | 1,111,186 | 160,452 |
| Events in quadrant C | 650,925 | 161,600 |
| Events in quadrant D | 787,269 | 155,041 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2963 | 2 |
| B | 0 | 4191 | 1 |
| C | 0 | 2882 | 1 |
| D | 0 | 3181 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 28 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1420 | 8 | 0.563380% |
| B | 1420 | 117 | 8.239437% |
| C | 1420 | 1 | 0.070423% |
| D | 1420 | 9 | 0.633803% |
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 | 1421 | 1421 | 0 | 0 | 0.00% | 0.00% |  |
| B | 1421 | 1421 | 69 | 69 | 4.86% | 4.86% |  |
| C | 1421 | 1421 | 0 | 0 | 0.00% | 0.00% |  |
| D | 1421 | 1421 | 2 | 2 | 0.14% | 0.14% |  |
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 | 1 | 162 | 13466 | 351.2 | 176 | 172 | 37.9 |
| A | 1 | 178 | 6372 | 163.79 | 176 | 172 | 37.9 |
| A | 1 | 161 | 5775 | 148.02 | 176 | 172 | 37.9 |
| B | 4 | 239 | 421698 | 12185.87 | 169 | 166 | 34.6 |
| B | 15 | 204 | 17956 | 514.28 | 169 | 166 | 34.6 |
| B | 0 | 214 | 7897 | 223.49 | 169 | 166 | 34.6 |
| C | 14 | 234 | 2532 | 59.01 | 165 | 165 | 40.1 |
| C | 8 | 208 | 2008 | 45.95 | 165 | 165 | 40.1 |
| C | 13 | 61 | 1189 | 25.53 | 165 | 165 | 40.1 |
| D | 8 | 195 | 54210 | 1294.73 | 167 | 163 | 41.7 |
| D | 10 | 50 | 45051 | 1075.32 | 167 | 163 | 41.7 |
| D | 1 | 52 | 30160 | 718.6 | 167 | 163 | 41.7 |
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 |  |