Observation information
- date-obs: 2016-01-26
- time-obs: 08:43:31.259200000
- date-end: 2016-01-26
- time-end: 10:41:14.260000000
- obs_id: G02_020T01_9000000296
- exposure: 5181.77513
- 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_01781cztM0_level2.evt
| modeM0/AS1G02_020T01_9000000296_01781cztM0_level2_quad_clean.evt
|
| Size (bytes) | 970,911,360 | 95,713,920 |
| Size | 925.9 MB
| 91.3 MB
|
| Events in quadrant A | 7,710,198 | 627,243 |
| Events in quadrant B | 7,263,126 | 638,255 |
| Events in quadrant C | 6,759,459 | 618,326 |
| Events in quadrant D | 7,281,784 | 604,348 |
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 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27075 | 1 |
| B | 0 | 25748 | 1 |
| C | 0 | 24288 | 7 |
| D | 0 | 25799 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5874 | 44 | 0.749064% |
| B | 5874 | 35 | 0.595846% |
| C | 5872 | 29 | 0.493869% |
| D | 5874 | 72 | 1.225741% |
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 | 7064 | 5875 | 275 | 275 | 3.89% | 4.68% |  |
| B | 7064 | 5875 | 232 | 232 | 3.28% | 3.95% |  |
| C | 7064 | 5874 | 170 | 170 | 2.41% | 2.89% |  |
| D | 7064 | 5875 | 305 | 305 | 4.32% | 5.19% |  |
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 | 552114 | 1232.55 | 1864 | 1875 | 446.4 |
| A | 15 | 236 | 17073 | 34.04 | 1864 | 1875 | 446.4 |
| A | 13 | 9 | 11524 | 21.61 | 1864 | 1875 | 446.4 |
| B | 0 | 229 | 13108 | 24.86 | 1910 | 1921 | 450.1 |
| B | 7 | 202 | 9200 | 16.17 | 1910 | 1921 | 450.1 |
| B | 0 | 234 | 7187 | 11.7 | 1910 | 1921 | 450.1 |
| C | 8 | 208 | 13015 | 23.55 | 1725 | 1781 | 476.9 |
| C | 9 | 236 | 6895 | 10.72 | 1725 | 1781 | 476.9 |
| C | 15 | 246 | 6407 | 9.7 | 1725 | 1781 | 476.9 |
| D | 7 | 85 | 370555 | 695.76 | 1706 | 1764 | 530.1 |
| D | 13 | 53 | 167197 | 312.11 | 1706 | 1764 | 530.1 |
| D | 2 | 16 | 122437 | 227.66 | 1706 | 1764 | 530.1 |
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 |  |