Observation information
- date-obs: 2020-07-22
- time-obs: 03:21:29.244900000
- date-end: 2020-07-22
- time-end: 05:25:19.236200000
- obs_id: A09_033T02_9000003762
- exposure: 4146.46778986
- sourceid: NGC262
- observer: Rahnapt
- ra_pnt: 12.19642
- dec_pnt: 31.95697
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_033T02_9000003762_26037cztM0_level2.evt
| modeM0/AS1A09_033T02_9000003762_26037cztM0_level2_quad_clean.evt
|
| Size (bytes) | 435,185,280 | 91,512,000 |
| Size | 415.0 MB
| 87.3 MB
|
| Events in quadrant A | 3,201,200 | 593,806 |
| Events in quadrant B | 3,311,074 | 600,769 |
| Events in quadrant C | 3,040,964 | 569,574 |
| Events in quadrant D | 3,199,260 | 568,728 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13427 | 0 |
| B | 0 | 13749 | 0 |
| C | 0 | 12986 | 0 |
| D | 0 | 13593 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6280 | 47 | 0.748408% |
| B | 6281 | 80 | 1.273683% |
| C | 6281 | 55 | 0.875657% |
| D | 6281 | 24 | 0.382105% |
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 | 7430 | 6280 | 21 | 21 | 0.28% | 0.33% |  |
| B | 7431 | 6282 | 31 | 31 | 0.42% | 0.49% |  |
| C | 7431 | 6281 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7431 | 6282 | 11 | 11 | 0.15% | 0.18% |  |
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 | 0 | 13 | 201514 | 1299.92 | 778 | 765 | 154.4 |
| A | 13 | 254 | 9741 | 58.12 | 778 | 765 | 154.4 |
| A | 3 | 137 | 7047 | 40.68 | 778 | 765 | 154.4 |
| B | 10 | 245 | 150047 | 1020.42 | 771 | 753 | 146.3 |
| B | 0 | 229 | 119335 | 810.5 | 771 | 753 | 146.3 |
| B | 0 | 190 | 28940 | 192.66 | 771 | 753 | 146.3 |
| C | 14 | 238 | 121691 | 704.22 | 738 | 742 | 171.7 |
| C | 3 | 233 | 39003 | 222.77 | 738 | 742 | 171.7 |
| C | 2 | 16 | 7266 | 37.99 | 738 | 742 | 171.7 |
| D | 1 | 52 | 170622 | 944.09 | 747 | 729 | 180.0 |
| D | 7 | 80 | 111729 | 616.82 | 747 | 729 | 180.0 |
| D | 7 | 223 | 52101 | 285.47 | 747 | 729 | 180.0 |
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 |  |