Observation information
- date-obs: 2016-01-26
- time-obs: 06:13:56.258300000
- date-end: 2016-01-26
- time-end: 07:12:02.259300000
- obs_id: G02_020T01_9000000296
- exposure: 1612.76100209
- sourceid: 4U 0142+61
- observer: KPSingh19
- ra_pnt: 26.59253
- dec_pnt: 61.75106
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G02_020T01_9000000296_01779cztM0_level2.evt
| modeM0/AS1G02_020T01_9000000296_01779cztM0_level2_quad_clean.evt
|
| Size (bytes) | 416,635,200 | 32,068,800 |
| Size | 397.3 MB
| 30.6 MB
|
| Events in quadrant A | 3,328,016 | 200,250 |
| Events in quadrant B | 3,133,179 | 207,150 |
| Events in quadrant C | 2,916,274 | 201,486 |
| Events in quadrant D | 3,087,685 | 197,384 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 1 | 1 | 0 |
| C | 1 | -1 | -1 |
| D | 1 | -1 | -1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11520 | 1 |
| B | 0 | 10892 | 1 |
| C | 0 | 10265 | 1 |
| D | 0 | 10806 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2277 | 47 | 2.064119% |
| B | 2277 | 34 | 1.493193% |
| C | 2277 | 24 | 1.054018% |
| D | 2277 | 113 | 4.962670% |
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 | 3487 | 2278 | 205 | 205 | 5.88% | 9.00% |  |
| B | 3487 | 2277 | 163 | 163 | 4.67% | 7.16% |  |
| C | 3487 | 2278 | 132 | 132 | 3.79% | 5.79% |  |
| D | 3487 | 2278 | 227 | 227 | 6.51% | 9.96% |  |
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 | 0 | 231 | 339386 | 1783.87 | 781 | 785 | 189.8 |
| A | 10 | 2 | 2910 | 11.2 | 781 | 785 | 189.8 |
| A | -1 | -1 | -1 | -1.0 | 781 | 785 | 189.8 |
| B | 0 | 234 | 8744 | 40.82 | 822 | 824 | 194.0 |
| B | 5 | 6 | 6177 | 27.59 | 822 | 824 | 194.0 |
| B | 4 | 200 | 2706 | 9.7 | 822 | 824 | 194.0 |
| C | 8 | 208 | 15057 | 69.15 | 741 | 765 | 206.7 |
| C | 9 | 236 | 4338 | 17.29 | 741 | 765 | 206.7 |
| C | 7 | 159 | 4052 | 15.9 | 741 | 765 | 206.7 |
| D | 13 | 138 | 256504 | 1187.96 | 694 | 717 | 215.3 |
| D | 7 | 85 | 174144 | 805.45 | 694 | 717 | 215.3 |
| D | 13 | 53 | 22449 | 100.93 | 694 | 717 | 215.3 |
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 |  |