Observation information
- date-obs: 2017-09-17
- time-obs: 09:16:34.554900000
- date-end: 2017-09-17
- time-end: 13:17:33.547000000
- obs_id: A03_097T01_9000001540
- exposure: 8502.67588747
- sourceid: Cygnus X-1
- observer: aarthy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_097T01_9000001540_10662cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10662cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,099,448,640 | 162,080,640 |
| Size | 1.0 GB
| 154.6 MB
|
| Events in quadrant A | 5,805,825 | 1,053,808 |
| Events in quadrant B | 8,240,840 | 1,041,188 |
| Events in quadrant C | 6,646,746 | 1,024,464 |
| Events in quadrant D | 11,767,828 | 932,566 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25601 | 4 |
| B | 0 | 32470 | 3 |
| C | 0 | 28171 | 3 |
| D | 0 | 43446 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 252 | 0 |
| B | 0 | 252 | 0 |
| C | 0 | 252 | 0 |
| D | 0 | 252 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12384 | 151 | 1.219315% |
| B | 12384 | 558 | 4.505814% |
| C | 12384 | 403 | 3.254199% |
| D | 12384 | 1229 | 9.924096% |
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 | 14109 | 12385 | 21 | 21 | 0.15% | 0.17% |  |
| B | 14109 | 12385 | 318 | 318 | 2.25% | 2.57% |  |
| C | 14109 | 12386 | 262 | 262 | 1.86% | 2.12% |  |
| D | 14109 | 12385 | 1082 | 1082 | 7.67% | 8.74% |  |
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 | 174 | 78167 | 260.6 | 1453 | 1422 | 294.5 |
| A | 4 | 2 | 71993 | 239.64 | 1453 | 1422 | 294.5 |
| A | 1 | 162 | 27749 | 89.4 | 1453 | 1422 | 294.5 |
| B | 4 | 239 | 1895218 | 6930.96 | 1436 | 1403 | 273.2 |
| B | 15 | 204 | 261198 | 950.79 | 1436 | 1403 | 273.2 |
| B | 4 | 81 | 224123 | 815.11 | 1436 | 1403 | 273.2 |
| C | 4 | 254 | 1125800 | 3482.35 | 1394 | 1401 | 322.9 |
| C | 4 | 175 | 60318 | 182.47 | 1394 | 1401 | 322.9 |
| C | 14 | 234 | 16098 | 45.52 | 1394 | 1401 | 322.9 |
| D | 1 | 20 | 3015583 | 9168.6 | 1363 | 1325 | 328.8 |
| D | 12 | 233 | 2061661 | 6267.02 | 1363 | 1325 | 328.8 |
| D | 8 | 195 | 595168 | 1806.32 | 1363 | 1325 | 328.8 |
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 |  |