Observation information
- date-obs: 2017-01-04
- time-obs: 17:58:52.727300000
- date-end: 2017-01-04
- time-end: 20:23:42.731100000
- obs_id: A02_005T01_9000000948
- exposure: 4750.74800038
- 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_06878cztM0_level2.evt
| modeM0/AS1A02_005T01_9000000948_06878cztM0_level2_quad_clean.evt
|
| Size (bytes) | 467,150,400 | 90,567,360 |
| Size | 445.5 MB
| 86.4 MB
|
| Events in quadrant A | 3,247,768 | 565,759 |
| Events in quadrant B | 3,374,829 | 572,703 |
| Events in quadrant C | 3,389,874 | 567,939 |
| Events in quadrant D | 3,659,224 | 548,392 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14510 | 3 |
| B | 0 | 14773 | 2 |
| C | 0 | 14665 | 2 |
| D | 0 | 15633 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7005 | 50 | 0.713776% |
| B | 7005 | 80 | 1.142041% |
| C | 7005 | 101 | 1.441827% |
| D | 7005 | 79 | 1.127766% |
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 | 8690 | 7008 | 1 | 1 | 0.01% | 0.01% |  |
| B | 8690 | 7008 | 1 | 1 | 0.01% | 0.01% |  |
| C | 8690 | 7008 | 4 | 4 | 0.05% | 0.06% |  |
| D | 8690 | 7008 | 15 | 15 | 0.17% | 0.21% |  |
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 | 223 | 34311 | 197.85 | 827 | 809 | 169.3 |
| A | 13 | 251 | 14617 | 81.55 | 827 | 809 | 169.3 |
| A | 14 | 111 | 9194 | 49.52 | 827 | 809 | 169.3 |
| B | 0 | 214 | 57764 | 352.73 | 836 | 815 | 161.5 |
| B | 15 | 204 | 38145 | 231.22 | 836 | 815 | 161.5 |
| B | 4 | 80 | 16248 | 95.59 | 836 | 815 | 161.5 |
| C | 9 | 247 | 205821 | 1096.01 | 804 | 808 | 187.1 |
| C | 1 | 3 | 26891 | 139.44 | 804 | 808 | 187.1 |
| C | 12 | 4 | 12588 | 62.98 | 804 | 808 | 187.1 |
| D | 12 | 221 | 273711 | 1358.25 | 808 | 781 | 200.9 |
| D | 13 | 169 | 130189 | 644.01 | 808 | 781 | 200.9 |
| D | 8 | 195 | 87963 | 433.87 | 808 | 781 | 200.9 |
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 |  |