Observation information
- date-obs: 2015-10-07
- time-obs: 19:57:11.318000000
- date-end: 2015-10-07
- time-end: 21:51:45.305600000
- obs_id: P01_140T01_9000000004
- exposure: 2570.4883656
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5635
- dec_pnt: 35.20176
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_140T01_9000000004_00145cztM0_level2.evt
| modeM0/AS1P01_140T01_9000000004_00145cztM0_level2_quad_clean.evt
|
| Size (bytes) | 762,399,360 | 51,425,280 |
| Size | 727.1 MB
| 49.0 MB
|
| Events in quadrant A | 5,607,696 | 308,448 |
| Events in quadrant B | 5,747,113 | 316,925 |
| Events in quadrant C | 5,179,418 | 308,812 |
| Events in quadrant D | 6,242,136 | 292,247 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 96 | 0 |
| B | 0 | 96 | 0 |
| C | 0 | 97 | 1 |
| D | 0 | 96 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 18 | 2 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 1 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20012 | 12 |
| B | 0 | 20390 | 12 |
| C | 0 | 18735 | 9 |
| D | 0 | 21897 | 16 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4704 | 6 | 0.127551% |
| B | 4703 | 15 | 0.318945% |
| C | 4704 | 3 | 0.063776% |
| D | 4704 | 192 | 4.081633% |
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 | 6295 | 4706 | 139 | 139 | 2.21% | 2.95% |  |
| B | 6295 | 4706 | 129 | 129 | 2.05% | 2.74% |  |
| C | 6295 | 4706 | 49 | 49 | 0.78% | 1.04% |  |
| D | 6295 | 4706 | 362 | 362 | 5.75% | 7.69% |  |
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 | 134 | 57829 | 238.81 | 1420 | 1389 | 236.3 |
| A | 0 | 86 | 11070 | 40.96 | 1420 | 1389 | 236.3 |
| A | 13 | 9 | 9351 | 33.69 | 1420 | 1389 | 236.3 |
| B | 10 | 199 | 107980 | 340.42 | 1419 | 1424 | 313.0 |
| B | 8 | 236 | 73022 | 228.74 | 1419 | 1424 | 313.0 |
| B | 0 | 212 | 34562 | 105.87 | 1419 | 1424 | 313.0 |
| C | 3 | 32 | 34296 | 91.69 | 1289 | 1339 | 359.4 |
| C | 8 | 229 | 30981 | 82.46 | 1289 | 1339 | 359.4 |
| C | 2 | 192 | 26535 | 70.1 | 1289 | 1339 | 359.4 |
| D | 7 | 66 | 99569 | 262.3 | 1382 | 1337 | 374.5 |
| D | 7 | 68 | 88877 | 233.75 | 1382 | 1337 | 374.5 |
| D | 10 | 229 | 49610 | 128.9 | 1382 | 1337 | 374.5 |
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 |  |