Observation information
- date-obs: 2021-08-24
- time-obs: 06:33:14.988700000
- date-end: 2021-08-24
- time-end: 07:51:33.990200000
- obs_id: A10_059T01_9000004656
- exposure: 2024.06904021
- sourceid: 4U 1735-44
- observer: jitheshthejus
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_059T01_9000004656_31930cztM0_level2.evt
| modeM0/AS1A10_059T01_9000004656_31930cztM0_level2_quad_clean.evt
|
| Size (bytes) | 416,934,720 | 45,095,040 |
| Size | 397.6 MB
| 43.0 MB
|
| Events in quadrant A | 2,259,098 | 306,784 |
| Events in quadrant B | 2,912,725 | 308,167 |
| Events in quadrant C | 2,746,725 | 302,822 |
| Events in quadrant D | 4,469,712 | 197,874 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9476 | 397 |
| B | 0 | 11451 | 314 |
| C | 0 | 10800 | 250 |
| D | 0 | 16047 | 238 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 74 | 2 |
| B | 0 | 73 | 3 |
| C | 0 | 74 | 2 |
| D | 0 | 73 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3513 | 147 | 4.184458% |
| B | 3514 | 135 | 3.841776% |
| C | 3520 | 257 | 7.301136% |
| D | 3524 | 1098 | 31.157775% |
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 | 4809 | 3522 | 49 | 49 | 1.02% | 1.39% |  |
| B | 4814 | 3525 | 6 | 6 | 0.12% | 0.17% |  |
| C | 4820 | 3534 | 24 | 24 | 0.50% | 0.68% |  |
| D | 4820 | 3537 | 945 | 945 | 19.61% | 26.72% |  |
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 | 12 | 96 | 374647 | 3828.53 | 487 | 479 | 97.7 |
| A | 13 | 254 | 6753 | 64.2 | 487 | 479 | 97.7 |
| A | 13 | 6 | 5065 | 46.92 | 487 | 479 | 97.7 |
| B | 6 | 159 | 906765 | 9992.67 | 482 | 472 | 90.7 |
| B | 4 | 80 | 71190 | 779.73 | 482 | 472 | 90.7 |
| B | 10 | 245 | 15099 | 161.28 | 482 | 472 | 90.7 |
| C | 3 | 233 | 612564 | 5753.95 | 461 | 465 | 106.4 |
| C | 0 | 10 | 186958 | 1753.1 | 461 | 465 | 106.4 |
| C | 14 | 238 | 75418 | 704.59 | 461 | 465 | 106.4 |
| D | 13 | 249 | 2018859 | 21522.2 | 396 | 386 | 93.8 |
| D | 12 | 33 | 615045 | 6553.87 | 396 | 386 | 93.8 |
| D | 8 | 195 | 273808 | 2915.39 | 396 | 386 | 93.8 |
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 |  |