Observation information
- date-obs: 2018-08-14
- time-obs: 00:58:12.257600000
- date-end: 2018-08-14
- time-end: 03:15:31.255300000
- obs_id: G08_030T01_9000002302
- exposure: 3989.6289876
- sourceid: Cyg X-1
- observer: jsyadav
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_030T01_9000002302_15555cztM0_level2.evt
| modeM0/AS1G08_030T01_9000002302_15555cztM0_level2_quad_clean.evt
|
| Size (bytes) | 421,585,920 | 86,232,960 |
| Size | 402.1 MB
| 82.2 MB
|
| Events in quadrant A | 3,017,596 | 551,074 |
| Events in quadrant B | 3,243,512 | 557,124 |
| Events in quadrant C | 3,089,619 | 527,574 |
| Events in quadrant D | 2,974,365 | 521,644 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13213 | 3 |
| B | 0 | 13709 | 2 |
| C | 0 | 13297 | 2 |
| D | 0 | 13359 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6508 | 8 | 0.122926% |
| B | 6508 | 50 | 0.768285% |
| C | 6508 | 31 | 0.476337% |
| D | 6508 | 7 | 0.107560% |
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 | 7594 | 6510 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7594 | 6510 | 19 | 19 | 0.25% | 0.29% |  |
| C | 7594 | 6510 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7594 | 6510 | 2 | 2 | 0.03% | 0.03% |  |
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 | 253 | 7736 | 44.23 | 783 | 769 | 157.5 |
| A | 0 | 226 | 6960 | 39.3 | 783 | 769 | 157.5 |
| A | 12 | 194 | 5769 | 31.74 | 783 | 769 | 157.5 |
| B | 3 | 64 | 101716 | 669.49 | 782 | 763 | 150.8 |
| B | 4 | 48 | 29161 | 188.33 | 782 | 763 | 150.8 |
| B | 0 | 214 | 28000 | 180.63 | 782 | 763 | 150.8 |
| C | 14 | 238 | 117567 | 662.46 | 750 | 756 | 176.3 |
| C | 3 | 233 | 18651 | 101.49 | 750 | 756 | 176.3 |
| C | 7 | 247 | 11684 | 61.98 | 750 | 756 | 176.3 |
| D | 5 | 51 | 39963 | 189.98 | 750 | 733 | 206.5 |
| D | 10 | 70 | 35189 | 166.86 | 750 | 733 | 206.5 |
| D | 2 | 234 | 23305 | 109.31 | 750 | 733 | 206.5 |
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 |  |