Observation information
- date-obs: 2018-07-11
- time-obs: 00:01:32.269500000
- date-end: 2018-07-11
- time-end: 02:20:28.269900000
- obs_id: T02_060T01_9000002216
- exposure: 3855.2486286
- 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_15052cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15052cztM0_level2_quad_clean.evt
|
| Size (bytes) | 473,711,040 | 92,643,840 |
| Size | 451.8 MB
| 88.4 MB
|
| Events in quadrant A | 3,229,529 | 607,564 |
| Events in quadrant B | 3,805,871 | 607,943 |
| Events in quadrant C | 3,640,504 | 596,283 |
| Events in quadrant D | 3,251,041 | 562,406 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13300 | 3 |
| B | 0 | 15091 | 2 |
| C | 0 | 15016 | 2 |
| D | 0 | 13827 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6177 | 16 | 0.259025% |
| B | 6177 | 230 | 3.723490% |
| C | 6177 | 13 | 0.210458% |
| D | 6177 | 91 | 1.473207% |
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 | 7498 | 6179 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7498 | 6179 | 153 | 153 | 2.04% | 2.48% |  |
| C | 7498 | 6179 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7498 | 6179 | 67 | 67 | 0.89% | 1.08% |  |
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 | 67055 | 415.34 | 799 | 787 | 159.6 |
| A | 1 | 178 | 28869 | 176.01 | 799 | 787 | 159.6 |
| A | 1 | 161 | 25473 | 154.72 | 799 | 787 | 159.6 |
| B | 10 | 16 | 419206 | 2820.83 | 787 | 768 | 148.3 |
| B | 3 | 64 | 296434 | 1993.18 | 787 | 768 | 148.3 |
| B | 12 | 111 | 17276 | 111.28 | 787 | 768 | 148.3 |
| C | 3 | 233 | 631240 | 3558.15 | 770 | 778 | 177.2 |
| C | 13 | 61 | 5454 | 26.39 | 770 | 778 | 177.2 |
| C | 10 | 22 | 3222 | 13.79 | 770 | 778 | 177.2 |
| D | 13 | 249 | 349435 | 1898.55 | 760 | 737 | 183.7 |
| D | 2 | 234 | 19145 | 100.23 | 760 | 737 | 183.7 |
| D | 10 | 70 | 16618 | 86.47 | 760 | 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 |  |