Observation information
- date-obs: 2018-08-26
- time-obs: 01:08:57.793000000
- date-end: 2018-08-26
- time-end: 02:41:37.790600000
- obs_id: C03_015T04_9000002328
- exposure: 4217.48678075
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_015T04_9000002328_15733cztM0_level2.evt
| modeM0/AS1C03_015T04_9000002328_15733cztM0_level2_quad_clean.evt
|
| Size (bytes) | 295,735,680 | 86,178,240 |
| Size | 282.0 MB
| 82.2 MB
|
| Events in quadrant A | 2,095,104 | 580,270 |
| Events in quadrant B | 2,101,833 | 602,502 |
| Events in quadrant C | 2,108,108 | 571,714 |
| Events in quadrant D | 2,361,370 | 556,404 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 88 | 0 |
| B | 0 | 88 | 0 |
| C | 0 | 88 | 0 |
| D | 0 | 88 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8973 | 2 |
| B | 0 | 8957 | 1 |
| C | 0 | 8963 | 1 |
| D | 0 | 9983 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4245 | 21 | 0.494700% |
| B | 4245 | 34 | 0.800942% |
| C | 4245 | 37 | 0.871614% |
| D | 4245 | 52 | 1.224971% |
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 | 5561 | 4247 | 6 | 6 | 0.11% | 0.14% |  |
| B | 5561 | 4247 | 1 | 1 | 0.02% | 0.02% |  |
| C | 5561 | 4247 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5561 | 4246 | 32 | 32 | 0.58% | 0.75% |  |
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 | 69 | 65335 | 622.79 | 515 | 506 | 104.1 |
| A | 15 | 239 | 44292 | 420.63 | 515 | 506 | 104.1 |
| A | 0 | 226 | 4531 | 38.67 | 515 | 506 | 104.1 |
| B | 3 | 209 | 32304 | 322.91 | 520 | 507 | 98.5 |
| B | 4 | 173 | 10760 | 104.12 | 520 | 507 | 98.5 |
| B | 12 | 111 | 10699 | 103.5 | 520 | 507 | 98.5 |
| C | 3 | 233 | 96920 | 846.16 | 494 | 496 | 114.0 |
| C | 14 | 238 | 76995 | 671.31 | 494 | 496 | 114.0 |
| C | 10 | 22 | 5440 | 43.39 | 494 | 496 | 114.0 |
| D | 1 | 52 | 349169 | 2796.25 | 493 | 480 | 124.7 |
| D | 8 | 173 | 54820 | 435.77 | 493 | 480 | 124.7 |
| D | 8 | 174 | 23996 | 188.58 | 493 | 480 | 124.7 |
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 |  |