Observation information
- date-obs: 2018-04-12
- time-obs: 19:14:07.612500000
- date-end: 2018-04-12
- time-end: 21:42:20.604200000
- obs_id: G08_062T01_9000002038
- exposure: 4519.74218244
- 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_13731cztM0_level2.evt
| modeM0/AS1G08_062T01_9000002038_13731cztM0_level2_quad_clean.evt
|
| Size (bytes) | 544,011,840 | 96,160,320 |
| Size | 518.8 MB
| 91.7 MB
|
| Events in quadrant A | 3,478,004 | 602,914 |
| Events in quadrant B | 3,957,116 | 589,870 |
| Events in quadrant C | 4,028,422 | 624,327 |
| Events in quadrant D | 4,534,833 | 605,313 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14985 | 3 |
| B | 0 | 16370 | 2 |
| C | 0 | 16302 | 2 |
| D | 0 | 18016 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7028 | 63 | 0.896414% |
| B | 7028 | 166 | 2.361981% |
| C | 7028 | 138 | 1.963574% |
| D | 7028 | 330 | 4.695504% |
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 | 8894 | 7032 | 6 | 6 | 0.07% | 0.09% |  |
| B | 8894 | 7032 | 29 | 29 | 0.33% | 0.41% |  |
| C | 8894 | 7032 | 74 | 74 | 0.83% | 1.05% |  |
| D | 8894 | 7032 | 178 | 178 | 2.00% | 2.53% |  |
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 | 69 | 41071 | 224.96 | 877 | 858 | 178.8 |
| A | 15 | 157 | 39650 | 217.01 | 877 | 858 | 178.8 |
| A | 1 | 162 | 16828 | 89.34 | 877 | 858 | 178.8 |
| B | 0 | 219 | 193012 | 1152.1 | 868 | 848 | 166.8 |
| B | 15 | 33 | 166166 | 991.15 | 868 | 848 | 166.8 |
| B | 3 | 64 | 42881 | 252.01 | 868 | 848 | 166.8 |
| C | 4 | 254 | 497441 | 2445.4 | 864 | 868 | 203.1 |
| C | 3 | 233 | 158194 | 774.76 | 864 | 868 | 203.1 |
| C | 13 | 61 | 6076 | 25.65 | 864 | 868 | 203.1 |
| D | 1 | 52 | 782953 | 3810.29 | 853 | 831 | 205.3 |
| D | 5 | 222 | 188146 | 912.55 | 853 | 831 | 205.3 |
| D | 10 | 157 | 149001 | 721.85 | 853 | 831 | 205.3 |
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 |  |