Observation information
- date-obs: 2018-05-27
- time-obs: 02:20:26.226500000
- date-end: 2018-05-27
- time-end: 05:59:01.219800000
- obs_id: G08_075T01_9000002120
- exposure: 5229.70110828
- sourceid: Cygnus X-1
- observer: ravibt
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_075T01_9000002120_14388cztM0_level2.evt
| modeM0/AS1G08_075T01_9000002120_14388cztM0_level2_quad_clean.evt
|
| Size (bytes) | 658,990,080 | 121,605,120 |
| Size | 628.5 MB
| 116.0 MB
|
| Events in quadrant A | 4,422,885 | 783,281 |
| Events in quadrant B | 4,780,619 | 772,305 |
| Events in quadrant C | 5,448,739 | 750,700 |
| Events in quadrant D | 4,683,195 | 739,625 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 212 | 23 |
| B | 0 | 213 | 25 |
| C | 0 | 212 | 28 |
| D | 0 | 212 | 26 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21542 | 2689 |
| B | 0 | 22747 | 2880 |
| C | 0 | 25858 | 3493 |
| D | 0 | 23126 | 2886 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 6 |
| B | 0 | 27 | 8 |
| C | 0 | 27 | 9 |
| D | 0 | 28 | 6 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 9189 | 31 | 0.337360% |
| B | 9179 | 135 | 1.470748% |
| C | 9152 | 40 | 0.437063% |
| D | 9188 | 111 | 1.208098% |
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 | 13116 | 9311 | 3 | 3 | 0.02% | 0.03% |  |
| B | 13116 | 9287 | 69 | 69 | 0.53% | 0.74% |  |
| C | 13116 | 9248 | 0 | 0 | 0.00% | 0.00% |  |
| D | 13116 | 9291 | 93 | 93 | 0.71% | 1.00% |  |
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 | 4 | 2 | 26552 | 111.84 | 1137 | 1119 | 227.4 |
| A | 8 | 15 | 17927 | 73.91 | 1137 | 1119 | 227.4 |
| A | 0 | 226 | 10164 | 39.78 | 1137 | 1119 | 227.4 |
| B | 0 | 229 | 257218 | 1222.38 | 1123 | 1098 | 209.5 |
| B | 4 | 173 | 104793 | 494.9 | 1123 | 1098 | 209.5 |
| B | 12 | 111 | 24238 | 110.44 | 1123 | 1098 | 209.5 |
| C | 3 | 233 | 1244612 | 5088.8 | 1074 | 1083 | 244.4 |
| C | 3 | 232 | 10746 | 39.54 | 1074 | 1083 | 244.4 |
| C | 13 | 61 | 7815 | 27.55 | 1074 | 1083 | 244.4 |
| D | 10 | 70 | 285248 | 1006.24 | 1074 | 1055 | 282.4 |
| D | 2 | 120 | 134239 | 471.56 | 1074 | 1055 | 282.4 |
| D | 12 | 110 | 90487 | 316.65 | 1074 | 1055 | 282.4 |
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 |  |