Observation information
- date-obs: 2018-04-13
- time-obs: 00:43:15.594400000
- date-end: 2018-04-13
- time-end: 02:53:28.588500000
- obs_id: G08_062T01_9000002038
- exposure: 4719.13464671
- 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_13735cztM0_level2.evt
| modeM0/AS1G08_062T01_9000002038_13735cztM0_level2_quad_clean.evt
|
| Size (bytes) | 480,481,920 | 108,938,880 |
| Size | 458.2 MB
| 103.9 MB
|
| Events in quadrant A | 3,083,084 | 712,291 |
| Events in quadrant B | 3,249,968 | 721,200 |
| Events in quadrant C | 3,546,559 | 742,029 |
| Events in quadrant D | 4,254,242 | 694,238 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12997 | 3 |
| B | 0 | 13570 | 2 |
| C | 0 | 14323 | 2 |
| D | 0 | 16855 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6153 | 18 | 0.292540% |
| B | 6153 | 36 | 0.585080% |
| C | 6153 | 95 | 1.543962% |
| D | 6153 | 56 | 0.910125% |
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 | 7509 | 6155 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7509 | 6155 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7509 | 6155 | 60 | 60 | 0.80% | 0.97% |  |
| D | 7509 | 6155 | 21 | 21 | 0.28% | 0.34% |  |
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 | 1 | 162 | 22920 | 140.3 | 784 | 771 | 157.9 |
| A | 0 | 23 | 20745 | 126.52 | 784 | 771 | 157.9 |
| A | 15 | 69 | 9621 | 56.06 | 784 | 771 | 157.9 |
| B | 0 | 219 | 84427 | 566.21 | 790 | 772 | 147.7 |
| B | 4 | 80 | 23192 | 151.75 | 790 | 772 | 147.7 |
| B | 0 | 189 | 22265 | 145.47 | 790 | 772 | 147.7 |
| C | 4 | 254 | 426729 | 2377.57 | 776 | 783 | 179.2 |
| C | 3 | 233 | 93448 | 517.24 | 776 | 783 | 179.2 |
| C | 13 | 61 | 5644 | 27.13 | 776 | 783 | 179.2 |
| D | 5 | 222 | 623604 | 3394.72 | 760 | 740 | 183.5 |
| D | 8 | 195 | 287798 | 1564.52 | 760 | 740 | 183.5 |
| D | 10 | 157 | 172719 | 937.32 | 760 | 740 | 183.5 |
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 |  |