Observation information
- date-obs: 2017-06-15
- time-obs: 16:18:04.916100000
- date-end: 2017-06-15
- time-end: 17:22:41.913800000
- obs_id: G07_027T01_9000001304
- exposure: 2001.8953882
- 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/AS1G07_027T01_9000001304_09275cztM0_level2.evt
| modeM0/AS1G07_027T01_9000001304_09275cztM0_level2_quad_clean.evt
|
| Size (bytes) | 251,095,680 | 43,536,960 |
| Size | 239.5 MB
| 41.5 MB
|
| Events in quadrant A | 2,738,835 | 275,301 |
| Events in quadrant B | 1,481,393 | 287,186 |
| Events in quadrant C | 1,406,684 | 281,879 |
| Events in quadrant D | 1,782,793 | 270,445 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10138 | 1 |
| B | 0 | 6295 | 1 |
| C | 0 | 5973 | 1 |
| D | 0 | 7163 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 60 | 0 |
| B | 0 | 60 | 0 |
| C | 0 | 60 | 0 |
| D | 0 | 60 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2842 | 118 | 4.152006% |
| B | 2842 | 42 | 1.477833% |
| C | 2842 | 41 | 1.442646% |
| D | 2842 | 69 | 2.427868% |
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 | 3878 | 2843 | 59 | 59 | 1.52% | 2.08% |  |
| B | 3878 | 2843 | 0 | 0 | 0.00% | 0.00% |  |
| C | 3878 | 2843 | 1 | 1 | 0.03% | 0.04% |  |
| D | 3878 | 2843 | 22 | 22 | 0.57% | 0.77% |  |
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 | 8 | 5 | 1233088 | 16778.73 | 354 | 347 | 73.5 |
| A | 4 | 2 | 102767 | 1394.03 | 354 | 347 | 73.5 |
| A | 1 | 162 | 14697 | 195.32 | 354 | 347 | 73.5 |
| B | 0 | 214 | 31496 | 446.07 | 363 | 355 | 69.8 |
| B | 0 | 245 | 29156 | 412.56 | 363 | 355 | 69.8 |
| B | 12 | 111 | 6904 | 93.81 | 363 | 355 | 69.8 |
| C | 14 | 67 | 5270 | 58.52 | 358 | 361 | 83.9 |
| C | 10 | 22 | 4854 | 53.56 | 358 | 361 | 83.9 |
| C | 13 | 61 | 2664 | 27.45 | 358 | 361 | 83.9 |
| D | 1 | 52 | 300389 | 3167.71 | 351 | 344 | 94.7 |
| D | 12 | 233 | 107472 | 1131.0 | 351 | 344 | 94.7 |
| D | 7 | 71 | 23080 | 240.03 | 351 | 344 | 94.7 |
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 |  |