Observation information
- date-obs: 2017-11-03
- time-obs: 13:39:55.740900000
- date-end: 2017-11-03
- time-end: 15:46:14.735900000
- obs_id: G08_062T01_9000001660
- exposure: 4226.23813267
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_062T01_9000001660_11360cztM0_level2.evt
| modeM0/AS1G08_062T01_9000001660_11360cztM0_level2_quad_clean.evt
|
| Size (bytes) | 553,527,360 | 91,984,320 |
| Size | 527.9 MB
| 87.7 MB
|
| Events in quadrant A | 3,235,119 | 610,788 |
| Events in quadrant B | 4,931,063 | 559,381 |
| Events in quadrant C | 3,005,477 | 600,472 |
| Events in quadrant D | 5,159,464 | 569,639 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13804 | 2 |
| B | 0 | 18841 | 1 |
| C | 0 | 13231 | 1 |
| D | 0 | 19651 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6384 | 84 | 1.315789% |
| B | 6384 | 618 | 9.680451% |
| C | 6384 | 56 | 0.877193% |
| D | 6384 | 637 | 9.978070% |
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 | 7579 | 6385 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7579 | 6385 | 377 | 377 | 4.97% | 5.90% |  |
| C | 7579 | 6385 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7579 | 6385 | 471 | 471 | 6.21% | 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 | 15 | 174 | 93499 | 593.89 | 786 | 772 | 156.1 |
| A | 1 | 162 | 35847 | 224.64 | 786 | 772 | 156.1 |
| A | 1 | 178 | 19407 | 119.35 | 786 | 772 | 156.1 |
| B | 3 | 64 | 916994 | 6562.4 | 742 | 723 | 139.6 |
| B | 4 | 239 | 913257 | 6535.64 | 742 | 723 | 139.6 |
| B | 15 | 204 | 88908 | 631.59 | 742 | 723 | 139.6 |
| C | 14 | 67 | 31872 | 177.67 | 762 | 766 | 175.1 |
| C | 13 | 61 | 5578 | 27.49 | 762 | 766 | 175.1 |
| C | 8 | 222 | 3208 | 13.95 | 762 | 766 | 175.1 |
| D | 10 | 253 | 1296609 | 7574.53 | 715 | 697 | 171.1 |
| D | 13 | 152 | 351867 | 2052.57 | 715 | 697 | 171.1 |
| D | 1 | 52 | 342205 | 1996.09 | 715 | 697 | 171.1 |
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 |  |