Observation information
- date-obs: 2018-08-19
- time-obs: 01:11:32.585800000
- date-end: 2018-08-19
- time-end: 03:28:27.053800000
- obs_id: T02_086T01_9000002316
- exposure: 3548.56310469
- 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_15630cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15630cztM0_level2_quad_clean.evt
|
| Size (bytes) | 464,679,360 | 81,711,360 |
| Size | 443.2 MB
| 77.9 MB
|
| Events in quadrant A | 3,146,525 | 506,968 |
| Events in quadrant B | 3,311,865 | 519,809 |
| Events in quadrant C | 4,044,016 | 501,762 |
| Events in quadrant D | 3,130,644 | 493,968 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13431 | 3 |
| B | 0 | 13787 | 2 |
| C | 0 | 16213 | 2 |
| D | 0 | 13589 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6474 | 29 | 0.447946% |
| B | 6474 | 42 | 0.648749% |
| C | 6474 | 129 | 1.992586% |
| D | 6474 | 48 | 0.741427% |
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 | 7700 | 6475 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7700 | 6475 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7700 | 6475 | 41 | 41 | 0.53% | 0.63% |  |
| D | 7700 | 6475 | 21 | 21 | 0.27% | 0.32% |  |
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 | 9 | 143 | 15527 | 91.2 | 812 | 796 | 161.5 |
| A | 0 | 226 | 7178 | 39.51 | 812 | 796 | 161.5 |
| A | 12 | 194 | 5969 | 32.03 | 812 | 796 | 161.5 |
| B | 4 | 251 | 26325 | 167.02 | 820 | 799 | 152.8 |
| B | 3 | 209 | 23363 | 147.64 | 820 | 799 | 152.8 |
| B | 0 | 214 | 19787 | 124.24 | 820 | 799 | 152.8 |
| C | 3 | 233 | 791810 | 4337.65 | 793 | 800 | 182.4 |
| C | 14 | 238 | 125434 | 683.45 | 793 | 800 | 182.4 |
| C | 7 | 247 | 29901 | 159.58 | 793 | 800 | 182.4 |
| D | 2 | 33 | 55063 | 283.32 | 796 | 773 | 191.6 |
| D | 10 | 70 | 27390 | 138.91 | 796 | 773 | 191.6 |
| D | 2 | 234 | 26024 | 131.78 | 796 | 773 | 191.6 |
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 |  |