Observation information
- date-obs: 2015-12-01
- time-obs: 14-55-27.000006441
- date-end: 2015-12-01
- time-end: 17-01-18.000006437
- obs_id: P01_998T01_9000000188
- exposure: 6320.04008627
- 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_00956cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00956cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,079,974,080 | 103,040,640 |
| Size | 1.0 GB
| 98.3 MB
|
| Events in quadrant A | 7,585,198 | 684,341 |
| Events in quadrant B | 8,292,476 | 679,384 |
| Events in quadrant C | 8,798,433 | 660,900 |
| Events in quadrant D | 7,608,793 | 650,929 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27095 | 0 |
| B | 0 | 29181 | 0 |
| C | 0 | 30632 | 0 |
| D | 0 | 27159 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6372 | 42 | 0.659134% |
| B | 6372 | 51 | 0.800377% |
| C | 6372 | 85 | 1.333961% |
| D | 6371 | 91 | 1.428347% |
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 | 7552 | 6373 | 240 | 240 | 3.18% | 3.77% |  |
| B | 7552 | 6373 | 347 | 347 | 4.59% | 5.44% |  |
| C | 7552 | 6373 | 510 | 510 | 6.75% | 8.00% |  |
| D | 7551 | 6372 | 274 | 274 | 3.63% | 4.30% |  |
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 | 11 | 79 | 7594 | 11.92 | 1973 | 1985 | 470.6 |
| A | 14 | 170 | 7053 | 10.77 | 1973 | 1985 | 470.6 |
| A | 3 | 111 | 5754 | 8.01 | 1973 | 1985 | 470.6 |
| B | 7 | 221 | 176520 | 367.06 | 2040 | 2045 | 475.3 |
| B | 0 | 220 | 102325 | 210.97 | 2040 | 2045 | 475.3 |
| B | 5 | 249 | 62712 | 127.63 | 2040 | 2045 | 475.3 |
| C | 10 | 34 | 856997 | 1629.92 | 1900 | 1966 | 524.6 |
| C | 15 | 241 | 307005 | 581.49 | 1900 | 1966 | 524.6 |
| C | 9 | 52 | 125995 | 236.43 | 1900 | 1966 | 524.6 |
| D | 1 | 4 | 364402 | 686.82 | 1881 | 1924 | 527.8 |
| D | 13 | 73 | 59444 | 108.99 | 1881 | 1924 | 527.8 |
| D | 13 | 252 | 46462 | 84.39 | 1881 | 1924 | 527.8 |
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 |  |