Observation information
- date-obs: 2018-08-19
- time-obs: 22:06:32.361500000
- date-end: 2018-08-20
- time-end: 00:21:43.032200000
- obs_id: T02_086T01_9000002316
- exposure: 4451.05678822
- 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_15642cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15642cztM0_level2_quad_clean.evt
|
| Size (bytes) | 453,052,800 | 93,015,360 |
| Size | 432.1 MB
| 88.7 MB
|
| Events in quadrant A | 3,422,920 | 590,965 |
| Events in quadrant B | 3,206,832 | 604,817 |
| Events in quadrant C | 3,255,221 | 587,126 |
| Events in quadrant D | 3,385,805 | 572,184 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14531 | 3 |
| B | 0 | 13799 | 2 |
| C | 0 | 13713 | 2 |
| D | 0 | 14671 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6624 | 74 | 1.117150% |
| B | 6624 | 41 | 0.618961% |
| C | 6624 | 52 | 0.785024% |
| D | 6624 | 78 | 1.177536% |
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 | 7655 | 6625 | 38 | 38 | 0.50% | 0.57% |  |
| B | 7655 | 6625 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7655 | 6625 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7655 | 6625 | 61 | 61 | 0.80% | 0.92% |  |
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 | 157 | 387207 | 2440.26 | 783 | 768 | 158.4 |
| A | 3 | 80 | 17317 | 104.5 | 783 | 768 | 158.4 |
| A | 0 | 226 | 6966 | 39.14 | 783 | 768 | 158.4 |
| B | 0 | 189 | 46001 | 300.54 | 791 | 773 | 150.5 |
| B | 12 | 111 | 17401 | 110.49 | 791 | 773 | 150.5 |
| B | 3 | 209 | 16399 | 103.84 | 791 | 773 | 150.5 |
| C | 3 | 233 | 144711 | 819.63 | 757 | 764 | 175.6 |
| C | 14 | 238 | 117566 | 665.07 | 757 | 764 | 175.6 |
| C | 0 | 207 | 26933 | 149.01 | 757 | 764 | 175.6 |
| D | 1 | 52 | 269488 | 1463.28 | 759 | 737 | 183.7 |
| D | 2 | 16 | 113708 | 615.1 | 759 | 737 | 183.7 |
| D | 2 | 234 | 25754 | 136.21 | 759 | 737 | 183.7 |
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 |  |