Observation information
- date-obs: 2015-12-02
- time-obs: 12-04-21.000006118
- date-end: 2015-12-02
- time-end: 13-58-43.000006102
- obs_id: P01_998T01_9000000188
- exposure: 5579.84267499
- sourceid: NGC188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_998T01_9000000188_00969cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00969cztM0_level2_quad_clean.evt
|
| Size (bytes) | 945,002,880 | 91,298,880 |
| Size | 901.2 MB
| 87.1 MB
|
| Events in quadrant A | 6,962,150 | 609,193 |
| Events in quadrant B | 7,812,453 | 599,596 |
| Events in quadrant C | 6,943,796 | 584,489 |
| Events in quadrant D | 6,528,603 | 578,481 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24714 | 0 |
| B | 0 | 27178 | 0 |
| C | 0 | 24610 | 0 |
| D | 0 | 23428 | 0 |
| 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 | 114 | 0 |
| B | 0 | 114 | 0 |
| C | 0 | 114 | 0 |
| D | 0 | 114 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5621 | 99 | 1.761252% |
| B | 5621 | 59 | 1.049635% |
| C | 5621 | 45 | 0.800569% |
| D | 5622 | 38 | 0.675916% |
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 | 6861 | 5622 | 353 | 353 | 5.15% | 6.28% |  |
| B | 6861 | 5622 | 417 | 417 | 6.08% | 7.42% |  |
| C | 6861 | 5622 | 192 | 192 | 2.80% | 3.42% |  |
| D | 6862 | 5623 | 156 | 156 | 2.27% | 2.77% |  |
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 | 14 | 170 | 309602 | 747.73 | 1729 | 1739 | 411.7 |
| A | 12 | 189 | 9877 | 19.77 | 1729 | 1739 | 411.7 |
| A | 0 | 214 | 6373 | 11.26 | 1729 | 1739 | 411.7 |
| B | 0 | 153 | 655965 | 1568.02 | 1798 | 1800 | 417.2 |
| B | 0 | 220 | 114558 | 270.28 | 1798 | 1800 | 417.2 |
| B | 5 | 249 | 63972 | 149.02 | 1798 | 1800 | 417.2 |
| C | 15 | 241 | 265162 | 573.84 | 1661 | 1718 | 459.1 |
| C | 3 | 9 | 64938 | 137.71 | 1661 | 1718 | 459.1 |
| C | 10 | 34 | 47580 | 99.9 | 1661 | 1718 | 459.1 |
| D | 1 | 4 | 342346 | 694.48 | 1622 | 1678 | 490.5 |
| D | 13 | 73 | 36028 | 70.02 | 1622 | 1678 | 490.5 |
| D | 10 | 125 | 26404 | 50.41 | 1622 | 1678 | 490.5 |
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 |  |