Observation information
- date-obs: 2018-04-15
- time-obs: 01:26:35.474800000
- date-end: 2018-04-15
- time-end: 03:44:56.469800000
- obs_id: G08_062T01_9000002038
- exposure: 4850.98610292
- 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_9000002038_13765cztM0_level2.evt
| modeM0/AS1G08_062T01_9000002038_13765cztM0_level2_quad_clean.evt
|
| Size (bytes) | 538,237,440 | 112,380,480 |
| Size | 513.3 MB
| 107.2 MB
|
| Events in quadrant A | 3,477,560 | 736,164 |
| Events in quadrant B | 3,546,118 | 742,937 |
| Events in quadrant C | 3,320,145 | 767,070 |
| Events in quadrant D | 5,516,335 | 704,369 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14484 | 3 |
| B | 0 | 14717 | 2 |
| C | 0 | 13909 | 2 |
| D | 0 | 20750 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6489 | 61 | 0.940052% |
| B | 6489 | 62 | 0.955463% |
| C | 6489 | 37 | 0.570196% |
| D | 6489 | 510 | 7.859454% |
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 | 7840 | 6491 | 35 | 35 | 0.45% | 0.54% |  |
| B | 7840 | 6491 | 18 | 18 | 0.23% | 0.28% |  |
| C | 7840 | 6491 | 4 | 4 | 0.05% | 0.06% |  |
| D | 7840 | 6491 | 316 | 316 | 4.03% | 4.87% |  |
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 | 9 | 143 | 258758 | 1559.5 | 824 | 810 | 165.4 |
| A | 1 | 162 | 18330 | 105.92 | 824 | 810 | 165.4 |
| A | 0 | 23 | 14598 | 83.36 | 824 | 810 | 165.4 |
| B | 0 | 219 | 213772 | 1380.27 | 829 | 811 | 154.3 |
| B | 10 | 244 | 34296 | 217.03 | 829 | 811 | 154.3 |
| B | 12 | 111 | 17099 | 105.57 | 829 | 811 | 154.3 |
| C | 3 | 233 | 130482 | 690.67 | 814 | 821 | 187.7 |
| C | 6 | 253 | 8160 | 39.09 | 814 | 821 | 187.7 |
| C | 14 | 234 | 6836 | 32.04 | 814 | 821 | 187.7 |
| D | 5 | 222 | 1369630 | 7236.66 | 778 | 758 | 189.2 |
| D | 1 | 52 | 606705 | 3203.39 | 778 | 758 | 189.2 |
| D | 13 | 249 | 344446 | 1816.94 | 778 | 758 | 189.2 |
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 |  |