Observation information
- date-obs: 2017-07-26
- time-obs: 16:17:48.891400000
- date-end: 2017-07-26
- time-end: 18:51:47.895200000
- obs_id: A03_117T06_9000001404
- exposure: 4787.45931122
- sourceid: 4U 1957+115
- observer: dipak
- ra_pnt: 299.8509
- dec_pnt: 11.709
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_117T06_9000001404_09881cztM0_level2.evt
| modeM0/AS1A03_117T06_9000001404_09881cztM0_level2_quad_clean.evt
|
| Size (bytes) | 479,076,480 | 97,931,520 |
| Size | 456.9 MB
| 93.4 MB
|
| Events in quadrant A | 3,489,672 | 618,473 |
| Events in quadrant B | 3,464,399 | 638,039 |
| Events in quadrant C | 3,533,491 | 614,356 |
| Events in quadrant D | 3,527,236 | 588,823 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15257 | 3 |
| B | 0 | 15118 | 2 |
| C | 0 | 15441 | 4 |
| D | 0 | 15565 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7269 | 81 | 1.114321% |
| B | 7269 | 100 | 1.375705% |
| C | 7268 | 100 | 1.375894% |
| D | 7269 | 82 | 1.128078% |
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 | 9239 | 7271 | 1 | 1 | 0.01% | 0.01% |  |
| B | 9239 | 7271 | 0 | 0 | 0.00% | 0.00% |  |
| C | 9239 | 7271 | 11 | 11 | 0.12% | 0.15% |  |
| D | 9239 | 7271 | 9 | 9 | 0.10% | 0.12% |  |
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 | 13 | 251 | 55502 | 305.49 | 883 | 865 | 178.8 |
| A | 15 | 239 | 35968 | 196.27 | 883 | 865 | 178.8 |
| A | 0 | 226 | 8001 | 39.9 | 883 | 865 | 178.8 |
| B | 12 | 111 | 20693 | 115.7 | 887 | 862 | 171.4 |
| B | 11 | 111 | 17080 | 94.62 | 887 | 862 | 171.4 |
| B | 14 | 111 | 13699 | 74.9 | 887 | 862 | 171.4 |
| C | 4 | 254 | 125388 | 619.72 | 865 | 869 | 200.9 |
| C | 14 | 234 | 27714 | 133.61 | 865 | 869 | 200.9 |
| C | 13 | 61 | 6446 | 27.76 | 865 | 869 | 200.9 |
| D | 1 | 52 | 164861 | 731.93 | 856 | 837 | 224.1 |
| D | 8 | 195 | 35019 | 152.53 | 856 | 837 | 224.1 |
| D | 2 | 14 | 34131 | 148.57 | 856 | 837 | 224.1 |
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 |  |