Observation information
- date-obs: 2015-12-04
- time-obs: 00:29:09.670500000
- date-end: 2015-12-04
- time-end: 02:33:14.675400000
- obs_id: P01_998T01_9000000188
- exposure: 6700.48715173
- 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_00991cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00991cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,310,526,720 | 98,573,760 |
| Size | 1.2 GB
| 94.0 MB
|
| Events in quadrant A | 8,050,609 | 659,942 |
| Events in quadrant B | 8,806,701 | 658,395 |
| Events in quadrant C | 8,096,859 | 652,550 |
| Events in quadrant D | 14,276,437 | 529,545 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28814 | 0 |
| B | 0 | 31064 | 0 |
| C | 0 | 28987 | 0 |
| D | 0 | 47654 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6940 | 6 | 0.086455% |
| B | 6941 | 22 | 0.316957% |
| C | 6941 | 5 | 0.072036% |
| D | 6941 | 2146 | 30.917735% |
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 | 7445 | 6941 | 141 | 141 | 1.89% | 2.03% |  |
| B | 7446 | 6942 | 291 | 291 | 3.91% | 4.19% |  |
| C | 7446 | 6942 | 144 | 144 | 1.93% | 2.07% |  |
| D | 7446 | 6942 | 3212 | 3212 | 43.14% | 46.27% |  |
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 | 0 | 253 | 80945 | 157.78 | 2077 | 2092 | 499.8 |
| A | 11 | 79 | 8449 | 12.72 | 2077 | 2092 | 499.8 |
| A | 3 | 111 | 6461 | 8.74 | 2077 | 2092 | 499.8 |
| B | 15 | 220 | 196721 | 379.16 | 2181 | 2192 | 513.0 |
| B | 7 | 221 | 128480 | 246.15 | 2181 | 2192 | 513.0 |
| B | 5 | 249 | 60183 | 113.03 | 2181 | 2192 | 513.0 |
| C | 15 | 241 | 314777 | 570.42 | 1969 | 2038 | 548.3 |
| C | 3 | 111 | 32521 | 55.6 | 1969 | 2038 | 548.3 |
| C | 3 | 79 | 28832 | 48.87 | 1969 | 2038 | 548.3 |
| D | 12 | 188 | 7772669 | 15138.29 | 1644 | 1704 | 513.3 |
| D | 1 | 4 | 135812 | 261.25 | 1644 | 1704 | 513.3 |
| D | 1 | 83 | 106096 | 203.36 | 1644 | 1704 | 513.3 |
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 |  |