Observation information
- date-obs: 2018-07-10
- time-obs: 08:13:24.262000000
- date-end: 2018-07-10
- time-end: 10:38:49.262800000
- obs_id: T02_060T01_9000002216
- exposure: 3774.05170967
- 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_15042cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15042cztM0_level2_quad_clean.evt
|
| Size (bytes) | 529,597,440 | 83,566,080 |
| Size | 505.1 MB
| 79.7 MB
|
| Events in quadrant A | 3,683,018 | 508,591 |
| Events in quadrant B | 4,031,019 | 518,450 |
| Events in quadrant C | 4,183,290 | 501,661 |
| Events in quadrant D | 3,639,531 | 487,214 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15632 | 3 |
| B | 0 | 16541 | 2 |
| C | 0 | 16819 | 2 |
| D | 0 | 15956 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7400 | 248 | 3.351351% |
| B | 7400 | 352 | 4.756757% |
| C | 7400 | 206 | 2.783784% |
| D | 7400 | 201 | 2.716216% |
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 | 8726 | 7401 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8726 | 7401 | 40 | 40 | 0.46% | 0.54% |  |
| C | 8726 | 7401 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8726 | 7401 | 25 | 25 | 0.29% | 0.34% |  |
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 | 12 | 189 | 48004 | 246.39 | 944 | 923 | 191.1 |
| A | 0 | 226 | 8159 | 37.87 | 944 | 923 | 191.1 |
| A | 12 | 194 | 6741 | 30.45 | 944 | 923 | 191.1 |
| B | 10 | 16 | 222071 | 1204.39 | 936 | 911 | 183.6 |
| B | 5 | 250 | 96460 | 520.34 | 936 | 911 | 183.6 |
| B | 4 | 80 | 23150 | 121.11 | 936 | 911 | 183.6 |
| C | 3 | 233 | 604013 | 2787.42 | 915 | 919 | 216.4 |
| C | 3 | 232 | 7761 | 31.62 | 915 | 919 | 216.4 |
| C | 13 | 61 | 6512 | 25.85 | 915 | 919 | 216.4 |
| D | 10 | 70 | 120072 | 531.39 | 915 | 887 | 224.3 |
| D | 2 | 152 | 38278 | 166.71 | 915 | 887 | 224.3 |
| D | 2 | 234 | 25437 | 109.45 | 915 | 887 | 224.3 |
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 |  |