Observation information
- date-obs: 2018-08-18
- time-obs: 23:11:37.614700000
- date-end: 2018-08-19
- time-end: 01:45:12.057200000
- obs_id: T02_086T01_9000002316
- exposure: 4527.10708201
- 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_15629cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15629cztM0_level2_quad_clean.evt
|
| Size (bytes) | 479,082,240 | 97,188,480 |
| Size | 456.9 MB
| 92.7 MB
|
| Events in quadrant A | 3,376,780 | 615,124 |
| Events in quadrant B | 3,622,868 | 624,771 |
| Events in quadrant C | 3,744,796 | 609,450 |
| Events in quadrant D | 3,281,808 | 599,144 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14654 | 3 |
| B | 0 | 15184 | 2 |
| C | 0 | 15538 | 2 |
| D | 0 | 14689 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7105 | 43 | 0.605208% |
| B | 7105 | 67 | 0.942998% |
| C | 7105 | 51 | 0.717804% |
| D | 7105 | 27 | 0.380014% |
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 | 9216 | 7106 | 11 | 11 | 0.12% | 0.15% |  |
| B | 9216 | 7107 | 13 | 13 | 0.14% | 0.18% |  |
| C | 9216 | 7107 | 0 | 0 | 0.00% | 0.00% |  |
| D | 9216 | 7106 | 7 | 7 | 0.08% | 0.10% |  |
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 | 40760 | 231.96 | 854 | 838 | 172.1 |
| A | 4 | 2 | 17057 | 94.24 | 854 | 838 | 172.1 |
| A | 3 | 80 | 15710 | 86.41 | 854 | 838 | 172.1 |
| B | 4 | 251 | 164107 | 1012.46 | 860 | 840 | 161.3 |
| B | 5 | 65 | 40527 | 246.11 | 860 | 840 | 161.3 |
| B | 0 | 189 | 21888 | 130.52 | 860 | 840 | 161.3 |
| C | 3 | 233 | 357755 | 1848.49 | 828 | 833 | 193.1 |
| C | 14 | 238 | 129411 | 665.9 | 828 | 833 | 193.1 |
| C | 7 | 247 | 26139 | 131.06 | 828 | 833 | 193.1 |
| D | 10 | 70 | 32177 | 154.84 | 835 | 812 | 202.6 |
| D | 2 | 234 | 30064 | 144.41 | 835 | 812 | 202.6 |
| D | 15 | 0 | 19523 | 92.37 | 835 | 812 | 202.6 |
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 |  |