Observation information
- date-obs: 2018-04-15
- time-obs: 03:22:27.469900000
- date-end: 2018-04-15
- time-end: 05:28:54.465200000
- obs_id: G08_062T01_9000002038
- exposure: 4178.73988529
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_062T01_9000002038_13766cztM0_level2.evt
| modeM0/AS1G08_062T01_9000002038_13766cztM0_level2_quad_clean.evt
|
| Size (bytes) | 493,917,120 | 93,925,440 |
| Size | 471.0 MB
| 89.6 MB
|
| Events in quadrant A | 3,652,913 | 600,060 |
| Events in quadrant B | 3,225,834 | 602,735 |
| Events in quadrant C | 3,767,004 | 614,881 |
| Events in quadrant D | 3,885,254 | 587,329 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14895 | 2 |
| B | 0 | 13503 | 1 |
| C | 0 | 15203 | 1 |
| D | 0 | 15798 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6297 | 249 | 3.954264% |
| B | 6297 | 59 | 0.936954% |
| C | 6297 | 115 | 1.826266% |
| D | 6297 | 89 | 1.413371% |
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 | 7588 | 6299 | 191 | 191 | 2.52% | 3.03% |  |
| B | 7588 | 6299 | 12 | 12 | 0.16% | 0.19% |  |
| C | 7588 | 6299 | 84 | 84 | 1.11% | 1.33% |  |
| D | 7588 | 6299 | 51 | 51 | 0.67% | 0.81% |  |
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 | 9 | 143 | 693432 | 4512.33 | 761 | 747 | 153.5 |
| A | 1 | 162 | 12470 | 76.37 | 761 | 747 | 153.5 |
| A | 0 | 23 | 8850 | 52.79 | 761 | 747 | 153.5 |
| B | 0 | 219 | 83767 | 566.44 | 778 | 760 | 146.5 |
| B | 4 | 80 | 30275 | 201.41 | 778 | 760 | 146.5 |
| B | 5 | 32 | 25606 | 169.55 | 778 | 760 | 146.5 |
| C | 9 | 236 | 702195 | 4017.87 | 758 | 763 | 174.6 |
| C | 3 | 233 | 99179 | 563.74 | 758 | 763 | 174.6 |
| C | 14 | 234 | 7005 | 35.75 | 758 | 763 | 174.6 |
| D | 1 | 52 | 395762 | 2166.44 | 750 | 728 | 182.3 |
| D | 10 | 157 | 224064 | 1224.82 | 750 | 728 | 182.3 |
| D | 5 | 222 | 170938 | 933.46 | 750 | 728 | 182.3 |
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 |  |