Observation information
- date-obs: 2019-09-25
- time-obs: 09:41:53.783600000
- date-end: 2019-09-25
- time-end: 11:47:54.780900000
- obs_id: A06_002T02_9000003204
- exposure: 4806.77737103
- sourceid: Cyg X-2
- observer: sudip
- ra_pnt: 118.8022
- dec_pnt: 39.17068
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A06_002T02_9000003204_21585cztM0_level2.evt
| modeM0/AS1A06_002T02_9000003204_21585cztM0_level2_quad_clean.evt
|
| Size (bytes) | 543,110,400 | 97,873,920 |
| Size | 518.0 MB
| 93.3 MB
|
| Events in quadrant A | 3,364,609 | 627,573 |
| Events in quadrant B | 3,682,685 | 638,199 |
| Events in quadrant C | 3,338,591 | 615,658 |
| Events in quadrant D | 5,579,341 | 586,752 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14537 | 0 |
| B | 0 | 15437 | 0 |
| C | 0 | 14491 | 0 |
| D | 0 | 21365 | 0 |
| 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 M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7121 | 79 | 1.109395% |
| B | 7122 | 138 | 1.937658% |
| C | 7122 | 110 | 1.544510% |
| D | 7122 | 445 | 6.248245% |
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 | 7561 | 7122 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7562 | 7123 | 51 | 51 | 0.67% | 0.72% |  |
| C | 7562 | 7123 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7562 | 7123 | 344 | 344 | 4.55% | 4.83% |  |
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 | 236 | 52044 | 295.42 | 860 | 840 | 173.3 |
| A | 13 | 254 | 8978 | 46.95 | 860 | 840 | 173.3 |
| A | 0 | 226 | 7409 | 37.9 | 860 | 840 | 173.3 |
| B | 3 | 64 | 232505 | 1430.11 | 849 | 827 | 162.0 |
| B | 0 | 190 | 56426 | 343.2 | 849 | 827 | 162.0 |
| B | 0 | 189 | 33768 | 203.34 | 849 | 827 | 162.0 |
| C | 14 | 238 | 129909 | 665.58 | 822 | 824 | 193.9 |
| C | 13 | 61 | 5798 | 25.65 | 822 | 824 | 193.9 |
| C | 0 | 239 | 3856 | 15.63 | 822 | 824 | 193.9 |
| D | 1 | 52 | 1330361 | 6685.67 | 820 | 795 | 198.9 |
| D | 2 | 136 | 559746 | 2810.66 | 820 | 795 | 198.9 |
| D | 7 | 223 | 293083 | 1469.76 | 820 | 795 | 198.9 |
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 |  |