Observation information
- date-obs: 2018-07-28
- time-obs: 08:14:56.448900000
- date-end: 2018-07-28
- time-end: 10:37:36.449800000
- obs_id: T02_073T01_9000002260
- exposure: 3564.70947668
- sourceid: Cygnus X-1
- observer: mithunnps
- ra_pnt: 299.563
- dec_pnt: 35.202
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_073T01_9000002260_15308cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15308cztM0_level2_quad_clean.evt
|
| Size (bytes) | 458,953,920 | 75,277,440 |
| Size | 437.7 MB
| 71.8 MB
|
| Events in quadrant A | 3,356,095 | 453,670 |
| Events in quadrant B | 3,411,592 | 458,619 |
| Events in quadrant C | 3,442,165 | 445,457 |
| Events in quadrant D | 3,211,960 | 432,311 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14452 | 3 |
| B | 0 | 14533 | 2 |
| C | 0 | 14503 | 2 |
| D | 0 | 14468 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7025 | 133 | 1.893238% |
| B | 7025 | 151 | 2.149466% |
| C | 7025 | 94 | 1.338078% |
| D | 7025 | 104 | 1.480427% |
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 | 8561 | 7026 | 2 | 2 | 0.02% | 0.03% |  |
| B | 8561 | 7026 | 3 | 3 | 0.04% | 0.04% |  |
| C | 8561 | 7026 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8561 | 7026 | 2 | 2 | 0.02% | 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 | 9 | 143 | 16649 | 89.54 | 865 | 844 | 176.5 |
| A | 13 | 252 | 14198 | 75.65 | 865 | 844 | 176.5 |
| A | 0 | 226 | 7713 | 38.91 | 865 | 844 | 176.5 |
| B | 12 | 111 | 20554 | 116.98 | 862 | 837 | 168.6 |
| B | 0 | 189 | 19492 | 110.68 | 862 | 837 | 168.6 |
| B | 11 | 111 | 17634 | 99.65 | 862 | 837 | 168.6 |
| C | 3 | 233 | 190022 | 975.75 | 833 | 835 | 193.9 |
| C | 13 | 61 | 6014 | 26.71 | 833 | 835 | 193.9 |
| C | 7 | 247 | 2199 | 7.03 | 833 | 835 | 193.9 |
| D | 2 | 234 | 25183 | 118.46 | 835 | 809 | 205.8 |
| D | 13 | 104 | 15114 | 69.53 | 835 | 809 | 205.8 |
| D | 10 | 70 | 12187 | 55.3 | 835 | 809 | 205.8 |
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 |  |