Observation information
- date-obs: 2015-10-07
- time-obs: 11:16:57.374100000
- date-end: 2015-10-07
- time-end: 13:15:37.360800000
- obs_id: P01_140T01_9000000004
- exposure: 4328.5348278
- 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_00139cztM0_level2.evt
| modeM0/AS1P01_140T01_9000000004_00139cztM0_level2_quad_clean.evt
|
| Size (bytes) | 853,824,960 | 73,595,520 |
| Size | 814.3 MB
| 70.2 MB
|
| Events in quadrant A | 6,236,426 | 474,316 |
| Events in quadrant B | 6,475,134 | 482,205 |
| Events in quadrant C | 5,711,119 | 470,199 |
| Events in quadrant D | 7,097,009 | 444,440 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112 | 6 |
| B | 0 | 112 | 10 |
| C | 0 | 112 | 4 |
| D | 0 | 112 | 6 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 1 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 1 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23966 | 1821 |
| B | 0 | 24613 | 1790 |
| C | 0 | 22231 | 1632 |
| D | 0 | 27308 | 2610 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5087 | 15 | 0.294869% |
| B | 5099 | 13 | 0.254952% |
| C | 5106 | 7 | 0.137094% |
| D | 5064 | 116 | 2.290679% |
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 | 7118 | 5246 | 168 | 168 | 2.36% | 3.20% |  |
| B | 7110 | 5236 | 167 | 167 | 2.35% | 3.19% |  |
| C | 7112 | 5245 | 58 | 58 | 0.82% | 1.11% |  |
| D | 7119 | 5218 | 385 | 385 | 5.41% | 7.38% |  |
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 | 14 | 171 | 25026 | 90.79 | 1586 | 1549 | 258.6 |
| A | 0 | 86 | 21995 | 79.07 | 1586 | 1549 | 258.6 |
| A | 0 | 166 | 12564 | 42.6 | 1586 | 1549 | 258.6 |
| B | 2 | 2 | 196113 | 568.65 | 1549 | 1552 | 342.1 |
| B | 8 | 236 | 97613 | 280.76 | 1549 | 1552 | 342.1 |
| B | 8 | 5 | 46617 | 131.71 | 1549 | 1552 | 342.1 |
| C | 3 | 0 | 40165 | 96.54 | 1420 | 1472 | 400.8 |
| C | 0 | 186 | 22545 | 52.58 | 1420 | 1472 | 400.8 |
| C | 3 | 32 | 15201 | 34.25 | 1420 | 1472 | 400.8 |
| D | 1 | 70 | 281963 | 769.4 | 1497 | 1494 | 364.5 |
| D | 10 | 171 | 179202 | 487.5 | 1497 | 1494 | 364.5 |
| D | 5 | 254 | 133412 | 361.89 | 1497 | 1494 | 364.5 |
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 |  |