Observation information
- date-obs: 2015-12-02
- time-obs: 16-57-32.000006113
- date-end: 2015-12-02
- time-end: 19-07-45.000006123
- obs_id: P01_998T01_9000000188
- exposure: 6713.86035631
- 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_00972cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00972cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,093,849,920 | 104,117,760 |
| Size | 1.0 GB
| 99.3 MB
|
| Events in quadrant A | 7,822,601 | 685,529 |
| Events in quadrant B | 8,662,436 | 678,165 |
| Events in quadrant C | 8,119,709 | 665,337 |
| Events in quadrant D | 8,075,711 | 654,135 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28053 | 0 |
| B | 0 | 30502 | 0 |
| C | 0 | 28902 | 0 |
| D | 0 | 28769 | 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 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6748 | 2 | 0.029638% |
| B | 6747 | 38 | 0.563213% |
| C | 6747 | 8 | 0.118571% |
| D | 6747 | 32 | 0.474285% |
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 | 7663 | 6749 | 149 | 149 | 1.94% | 2.21% |  |
| B | 7662 | 6748 | 342 | 342 | 4.46% | 5.07% |  |
| C | 7662 | 6748 | 185 | 185 | 2.41% | 2.74% |  |
| D | 7662 | 6748 | 301 | 301 | 3.93% | 4.46% |  |
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 | 242 | 13204 | 23.05 | 2031 | 2049 | 483.9 |
| A | 12 | 189 | 10448 | 17.36 | 2031 | 2049 | 483.9 |
| A | 11 | 79 | 7144 | 10.53 | 2031 | 2049 | 483.9 |
| B | 0 | 220 | 141824 | 281.62 | 2124 | 2131 | 496.0 |
| B | 7 | 221 | 82277 | 161.58 | 2124 | 2131 | 496.0 |
| B | 5 | 191 | 69944 | 136.71 | 2124 | 2131 | 496.0 |
| C | 15 | 241 | 334234 | 608.5 | 1970 | 2042 | 545.9 |
| C | 10 | 34 | 29199 | 49.75 | 1970 | 2042 | 545.9 |
| C | 3 | 111 | 28720 | 48.87 | 1970 | 2042 | 545.9 |
| D | 1 | 4 | 562537 | 963.33 | 1905 | 1967 | 581.9 |
| D | 12 | 188 | 256444 | 437.31 | 1905 | 1967 | 581.9 |
| D | 13 | 73 | 79333 | 132.95 | 1905 | 1967 | 581.9 |
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 |  |