Observation information
- date-obs: 2018-08-19
- time-obs: 08:08:12.466500000
- date-end: 2018-08-19
- time-end: 10:23:06.044500000
- obs_id: T02_086T01_9000002316
- exposure: 4725.83355039
- sourceid: 4U 1636-536
- observer: sudip
- ra_pnt: 250.2312
- dec_pnt: -53.75139
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_086T01_9000002316_15634cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15634cztM0_level2_quad_clean.evt
|
| Size (bytes) | 501,405,120 | 99,616,320 |
| Size | 478.2 MB
| 95.0 MB
|
| Events in quadrant A | 3,231,114 | 649,416 |
| Events in quadrant B | 3,336,516 | 655,176 |
| Events in quadrant C | 3,919,629 | 641,068 |
| Events in quadrant D | 4,258,334 | 619,568 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13489 | 3 |
| B | 0 | 13759 | 2 |
| C | 0 | 16001 | 2 |
| D | 0 | 16767 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6478 | 106 | 1.636308% |
| B | 6478 | 129 | 1.991355% |
| C | 6478 | 188 | 2.902130% |
| D | 6478 | 335 | 5.171349% |
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 | 7569 | 6479 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7569 | 6479 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7569 | 6479 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7569 | 6479 | 229 | 229 | 3.03% | 3.53% |  |
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 | 239 | 15427 | 88.26 | 829 | 813 | 165.6 |
| A | 3 | 80 | 14717 | 83.97 | 829 | 813 | 165.6 |
| A | 0 | 226 | 7392 | 39.73 | 829 | 813 | 165.6 |
| B | 0 | 214 | 29476 | 185.9 | 824 | 805 | 154.2 |
| B | 4 | 251 | 23843 | 149.38 | 824 | 805 | 154.2 |
| B | 4 | 216 | 18600 | 115.38 | 824 | 805 | 154.2 |
| C | 3 | 233 | 666062 | 3652.65 | 796 | 802 | 182.1 |
| C | 14 | 238 | 127875 | 697.7 | 796 | 802 | 182.1 |
| C | 0 | 207 | 13583 | 70.17 | 796 | 802 | 182.1 |
| D | 1 | 52 | 1129810 | 5786.08 | 805 | 782 | 195.1 |
| D | 10 | 70 | 34942 | 175.06 | 805 | 782 | 195.1 |
| D | 2 | 234 | 26491 | 131.75 | 805 | 782 | 195.1 |
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 |  |