Observation information
- date-obs: 2018-10-23
- time-obs: 12:32:03.815600000
- date-end: 2018-10-23
- time-end: 14:34:26.808900000
- obs_id: C04_009T01_9000002448
- exposure: 6136.5027578
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_009T01_9000002448_16599cztM0_level2.evt
| modeM0/AS1C04_009T01_9000002448_16599cztM0_level2_quad_clean.evt
|
| Size (bytes) | 473,460,480 | 121,507,200 |
| Size | 451.5 MB
| 115.9 MB
|
| Events in quadrant A | 3,004,853 | 825,031 |
| Events in quadrant B | 3,815,537 | 832,439 |
| Events in quadrant C | 3,847,082 | 801,910 |
| Events in quadrant D | 3,251,692 | 789,270 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13105 | 2 |
| B | 0 | 15466 | 1 |
| C | 0 | 15384 | 1 |
| D | 0 | 13954 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 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 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6188 | 46 | 0.743374% |
| B | 6188 | 185 | 2.989657% |
| C | 6188 | 72 | 1.163542% |
| D | 6188 | 109 | 1.761474% |
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 | 7344 | 6190 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7344 | 6190 | 85 | 85 | 1.16% | 1.37% |  |
| C | 7344 | 6190 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7344 | 6190 | 62 | 62 | 0.84% | 1.00% |  |
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 | 174 | 42947 | 280.97 | 749 | 734 | 150.2 |
| A | 9 | 143 | 39659 | 259.09 | 749 | 734 | 150.2 |
| A | 3 | 1 | 17381 | 110.8 | 749 | 734 | 150.2 |
| B | 7 | 220 | 232979 | 1672.36 | 745 | 727 | 138.9 |
| B | 0 | 85 | 194493 | 1395.23 | 745 | 727 | 138.9 |
| B | 15 | 35 | 124975 | 894.66 | 745 | 727 | 138.9 |
| C | 3 | 233 | 827456 | 4953.44 | 723 | 728 | 166.9 |
| C | 14 | 238 | 112351 | 668.8 | 723 | 728 | 166.9 |
| C | 3 | 232 | 60743 | 359.59 | 723 | 728 | 166.9 |
| D | 15 | 0 | 224834 | 1256.1 | 734 | 712 | 178.4 |
| D | 1 | 52 | 96083 | 534.51 | 734 | 712 | 178.4 |
| D | 10 | 70 | 65267 | 361.8 | 734 | 712 | 178.4 |
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 |  |