Observation information
- date-obs: 2017-07-25
- time-obs: 09:08:23.846800000
- date-end: 2017-07-25
- time-end: 11:33:23.850000000
- obs_id: A03_117T06_9000001404
- exposure: 4122.80457173
- 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_09862cztM0_level2.evt
| modeM0/AS1A03_117T06_9000001404_09862cztM0_level2_quad_clean.evt
|
| Size (bytes) | 579,749,760 | 85,472,640 |
| Size | 552.9 MB
| 81.5 MB
|
| Events in quadrant A | 4,090,374 | 502,370 |
| Events in quadrant B | 4,528,945 | 517,741 |
| Events in quadrant C | 4,126,317 | 501,483 |
| Events in quadrant D | 4,239,081 | 480,637 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18283 | 285 |
| B | 0 | 19165 | 223 |
| C | 0 | 18518 | 250 |
| D | 0 | 19081 | 344 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 174 | 6 |
| B | 0 | 174 | 0 |
| C | 0 | 174 | 0 |
| D | 0 | 174 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8407 | 473 | 5.626264% |
| B | 8440 | 509 | 6.030806% |
| C | 8423 | 381 | 4.523329% |
| D | 8425 | 454 | 5.388724% |
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 | 8700 | 8529 | 7 | 7 | 0.08% | 0.08% |  |
| B | 8700 | 8538 | 5 | 5 | 0.06% | 0.06% |  |
| C | 8700 | 8533 | 11 | 11 | 0.13% | 0.13% |  |
| D | 8700 | 8531 | 63 | 63 | 0.72% | 0.74% |  |
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 | 248 | 62612 | 282.22 | 1048 | 1021 | 218.2 |
| A | 0 | 226 | 9458 | 38.66 | 1048 | 1021 | 218.2 |
| A | 12 | 194 | 8195 | 32.87 | 1048 | 1021 | 218.2 |
| B | 0 | 85 | 385014 | 1854.52 | 1045 | 1019 | 207.1 |
| B | 4 | 81 | 69122 | 328.91 | 1045 | 1019 | 207.1 |
| B | 12 | 111 | 25622 | 118.82 | 1045 | 1019 | 207.1 |
| C | 14 | 234 | 84704 | 347.62 | 1019 | 1021 | 240.7 |
| C | 4 | 254 | 53941 | 219.83 | 1019 | 1021 | 240.7 |
| C | 9 | 54 | 8245 | 30.01 | 1019 | 1021 | 240.7 |
| D | 1 | 52 | 252140 | 946.46 | 1006 | 982 | 265.4 |
| D | 10 | 172 | 122872 | 459.33 | 1006 | 982 | 265.4 |
| D | 2 | 234 | 34320 | 125.63 | 1006 | 982 | 265.4 |
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 |  |