Observation information
- date-obs: 2017-10-22
- time-obs: 20:53:14.584600000
- date-end: 2017-10-22
- time-end: 23:19:10.587200000
- obs_id: A04_171T01_9000001634
- exposure: 4255.2849803
- sourceid: NGC 424
- observer: sachi
- ra_pnt: 17.86511
- dec_pnt: -38.08347
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_171T01_9000001634_11187cztM0_level2.evt
| modeM0/AS1A04_171T01_9000001634_11187cztM0_level2_quad_clean.evt
|
| Size (bytes) | 511,018,560 | 91,408,320 |
| Size | 487.3 MB
| 87.2 MB
|
| Events in quadrant A | 3,521,164 | 585,198 |
| Events in quadrant B | 3,959,711 | 601,455 |
| Events in quadrant C | 2,978,867 | 594,708 |
| Events in quadrant D | 4,579,425 | 537,125 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14504 | 3 |
| B | 0 | 15977 | 2 |
| C | 0 | 13126 | 2 |
| D | 0 | 17882 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6447 | 78 | 1.209865% |
| B | 6447 | 221 | 3.427951% |
| C | 6447 | 5 | 0.077555% |
| D | 6447 | 245 | 3.800217% |
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 | 7727 | 6448 | 35 | 35 | 0.45% | 0.54% |  |
| B | 7727 | 6448 | 119 | 119 | 1.54% | 1.85% |  |
| C | 7727 | 6448 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7727 | 6448 | 215 | 215 | 2.78% | 3.33% |  |
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 | 8 | 5 | 255534 | 1637.95 | 773 | 758 | 155.5 |
| A | 8 | 15 | 155103 | 992.28 | 773 | 758 | 155.5 |
| A | 14 | 238 | 98690 | 629.6 | 773 | 758 | 155.5 |
| B | 4 | 239 | 809833 | 5473.7 | 784 | 766 | 147.8 |
| B | 3 | 189 | 43304 | 287.79 | 784 | 766 | 147.8 |
| B | 0 | 229 | 18099 | 117.27 | 784 | 766 | 147.8 |
| C | 13 | 61 | 5711 | 28.01 | 763 | 769 | 176.4 |
| C | 5 | 128 | 2964 | 12.44 | 763 | 769 | 176.4 |
| C | 0 | 10 | 2533 | 10.0 | 763 | 769 | 176.4 |
| D | 2 | 14 | 865076 | 4924.85 | 733 | 715 | 175.5 |
| D | 10 | 157 | 591747 | 3367.51 | 733 | 715 | 175.5 |
| D | 1 | 52 | 138786 | 786.68 | 733 | 715 | 175.5 |
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 |  |