Observation information
- date-obs: 2015-11-30
- time-obs: 19-34-12.000006477
- date-end: 2015-11-30
- time-end: 21-50-02.000006466
- obs_id: P01_998T01_9000000188
- exposure: 7181.43000205
- 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_00944cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00944cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,227,931,200 | 109,811,520 |
| Size | 1.1 GB
| 104.7 MB
|
| Events in quadrant A | 8,911,644 | 723,075 |
| Events in quadrant B | 9,108,640 | 715,828 |
| Events in quadrant C | 8,992,722 | 705,036 |
| Events in quadrant D | 9,696,993 | 678,365 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31620 | 0 |
| B | 0 | 32196 | 0 |
| C | 0 | 31800 | 0 |
| D | 0 | 33923 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7232 | 6 | 0.082965% |
| B | 7232 | 30 | 0.414823% |
| C | 7232 | 20 | 0.276549% |
| D | 7231 | 252 | 3.484995% |
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 | 7687 | 7233 | 269 | 269 | 3.50% | 3.72% |  |
| B | 7687 | 7233 | 369 | 369 | 4.80% | 5.10% |  |
| C | 7687 | 7233 | 329 | 329 | 4.28% | 4.55% |  |
| D | 7686 | 7232 | 903 | 903 | 11.75% | 12.49% |  |
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 | 446579 | 843.12 | 2201 | 2219 | 527.0 |
| A | 12 | 189 | 10753 | 16.19 | 2201 | 2219 | 527.0 |
| A | 11 | 79 | 8694 | 12.29 | 2201 | 2219 | 527.0 |
| B | 15 | 22 | 82637 | 147.62 | 2310 | 2319 | 544.1 |
| B | 5 | 191 | 50435 | 88.44 | 2310 | 2319 | 544.1 |
| B | 8 | 234 | 47497 | 83.04 | 2310 | 2319 | 544.1 |
| C | 15 | 241 | 383498 | 637.48 | 2138 | 2212 | 598.1 |
| C | 10 | 34 | 133703 | 219.84 | 2138 | 2212 | 598.1 |
| C | 9 | 144 | 76170 | 123.65 | 2138 | 2212 | 598.1 |
| D | 12 | 188 | 1287309 | 2064.76 | 2027 | 2097 | 622.5 |
| D | 1 | 4 | 633816 | 1014.89 | 2027 | 2097 | 622.5 |
| D | 13 | 252 | 179798 | 285.49 | 2027 | 2097 | 622.5 |
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 |  |