Observation information
- date-obs: 2015-12-01
- time-obs: 19-53-12.000006419
- date-end: 2015-12-01
- time-end: 22-13-40.000006397
- obs_id: P01_998T01_9000000188
- exposure: 7473.43464895
- 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_00959cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00959cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,318,032,000 | 114,448,320 |
| Size | 1.2 GB
| 109.1 MB
|
| Events in quadrant A | 9,230,919 | 756,071 |
| Events in quadrant B | 9,782,691 | 753,981 |
| Events in quadrant C | 10,030,728 | 734,326 |
| Events in quadrant D | 10,372,090 | 694,572 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32787 | 0 |
| B | 0 | 34429 | 0 |
| C | 0 | 35114 | 0 |
| D | 0 | 36288 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7573 | 15 | 0.198072% |
| B | 7574 | 50 | 0.660153% |
| C | 7574 | 21 | 0.277264% |
| D | 7573 | 585 | 7.724812% |
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 | 8428 | 7575 | 410 | 410 | 4.86% | 5.41% |  |
| B | 8429 | 7576 | 470 | 470 | 5.58% | 6.20% |  |
| C | 8429 | 7576 | 484 | 484 | 5.74% | 6.39% |  |
| D | 8428 | 7575 | 1115 | 1115 | 13.23% | 14.72% |  |
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 | 15 | 233 | 139942 | 243.16 | 2353 | 2366 | 565.8 |
| A | 14 | 170 | 56495 | 95.67 | 2353 | 2366 | 565.8 |
| A | 11 | 79 | 10770 | 14.85 | 2353 | 2366 | 565.8 |
| B | 5 | 249 | 88437 | 148.46 | 2469 | 2474 | 579.0 |
| B | 3 | 32 | 87223 | 146.36 | 2469 | 2474 | 579.0 |
| B | 8 | 234 | 50656 | 83.21 | 2469 | 2474 | 579.0 |
| C | 10 | 34 | 609196 | 949.06 | 2289 | 2368 | 639.4 |
| C | 15 | 241 | 340924 | 529.49 | 2289 | 2368 | 639.4 |
| C | 10 | 207 | 64179 | 96.67 | 2289 | 2368 | 639.4 |
| D | 12 | 188 | 1380362 | 2120.07 | 2111 | 2189 | 650.1 |
| D | 1 | 4 | 572791 | 877.77 | 2111 | 2189 | 650.1 |
| D | 10 | 85 | 327212 | 499.99 | 2111 | 2189 | 650.1 |
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 |  |