Observation information
- date-obs: 2018-07-10
- time-obs: 01:01:39.270500000
- date-end: 2018-07-10
- time-end: 01:58:13.268700000
- obs_id: T02_060T01_9000002216
- exposure: 2128.3830599
- sourceid: Maxi J1820+070
- observer: aarthy
- ra_pnt: 275.091
- dec_pnt: 7.185631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_060T01_9000002216_15037cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15037cztM0_level2_quad_clean.evt
|
| Size (bytes) | 166,250,880 | 49,256,640 |
| Size | 158.5 MB
| 47.0 MB
|
| Events in quadrant A | 1,271,776 | 338,192 |
| Events in quadrant B | 1,226,401 | 348,664 |
| Events in quadrant C | 1,247,973 | 332,563 |
| Events in quadrant D | 1,140,493 | 316,480 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5141 | 2 |
| B | 0 | 4948 | 1 |
| C | 0 | 5005 | 1 |
| D | 0 | 4695 | 1 |
| 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 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2144 | 28 | 1.305970% |
| B | 2144 | 34 | 1.585821% |
| C | 2144 | 21 | 0.979478% |
| D | 2144 | 13 | 0.606343% |
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 | 3395 | 2146 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3395 | 2146 | 0 | 0 | 0.00% | 0.00% |  |
| C | 3395 | 2146 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3395 | 2146 | 1 | 1 | 0.03% | 0.05% |  |
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 | 1 | 162 | 37451 | 596.9 | 302 | 296 | 62.2 |
| A | 12 | 189 | 25040 | 397.51 | 302 | 296 | 62.2 |
| A | 1 | 178 | 18056 | 285.32 | 302 | 296 | 62.2 |
| B | 4 | 173 | 34447 | 575.15 | 303 | 295 | 59.4 |
| B | 0 | 230 | 8056 | 130.7 | 303 | 295 | 59.4 |
| B | 12 | 111 | 6464 | 103.89 | 303 | 295 | 59.4 |
| C | 3 | 233 | 101668 | 1455.25 | 293 | 295 | 69.7 |
| C | 13 | 61 | 2067 | 25.44 | 293 | 295 | 69.7 |
| C | 10 | 22 | 1190 | 12.85 | 293 | 295 | 69.7 |
| D | 2 | 120 | 18021 | 245.75 | 293 | 285 | 72.2 |
| D | 13 | 172 | 8707 | 116.7 | 293 | 285 | 72.2 |
| D | 2 | 234 | 7436 | 99.08 | 293 | 285 | 72.2 |
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 |  |