Observation information
- date-obs: 2020-08-14
- time-obs: 03:28:27.559900000
- date-end: 2020-08-14
- time-end: 05:29:46.554700000
- obs_id: A09_088T01_9000003812
- exposure: 5170.0961304
- sourceid: NGC 1261
- observer: sharmila
- ra_pnt: 48.06754
- dec_pnt: -55.21622
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_088T01_9000003812_26377cztM0_level2.evt
| modeM0/AS1A09_088T01_9000003812_26377cztM0_level2_quad_clean.evt
|
| Size (bytes) | 861,819,840 | 101,324,160 |
| Size | 821.9 MB
| 96.6 MB
|
| Events in quadrant A | 3,232,950 | 693,272 |
| Events in quadrant B | 3,277,442 | 714,463 |
| Events in quadrant C | 9,953,948 | 575,110 |
| Events in quadrant D | 9,163,715 | 596,900 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14306 | 0 |
| B | 0 | 14331 | 0 |
| C | 0 | 34498 | 0 |
| D | 0 | 32063 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6999 | 89 | 1.271610% |
| B | 6998 | 95 | 1.357531% |
| C | 6998 | 2675 | 38.225207% |
| D | 6999 | 1742 | 24.889270% |
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 | 7279 | 7001 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7278 | 7000 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7278 | 6999 | 1645 | 1645 | 22.60% | 23.50% |  |
| D | 7279 | 7001 | 1293 | 1293 | 17.76% | 18.47% |  |
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 | 27758 | 161.56 | 829 | 812 | 166.8 |
| A | 13 | 254 | 11400 | 63.48 | 829 | 812 | 166.8 |
| A | 3 | 137 | 7670 | 41.12 | 829 | 812 | 166.8 |
| B | 0 | 230 | 33606 | 211.14 | 828 | 807 | 155.3 |
| B | 12 | 111 | 19087 | 117.68 | 828 | 807 | 155.3 |
| B | 11 | 111 | 17357 | 106.54 | 828 | 807 | 155.3 |
| C | 3 | 233 | 7128950 | 44386.74 | 691 | 695 | 160.6 |
| C | 14 | 238 | 108383 | 670.56 | 691 | 695 | 160.6 |
| C | 2 | 16 | 16885 | 100.81 | 691 | 695 | 160.6 |
| D | 7 | 80 | 3334077 | 18917.47 | 737 | 716 | 176.2 |
| D | 1 | 52 | 2871468 | 16292.08 | 737 | 716 | 176.2 |
| D | 11 | 176 | 78895 | 443.68 | 737 | 716 | 176.2 |
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 |  |