Observation information
- date-obs: 2017-10-22
- time-obs: 19:14:54.583300000
- date-end: 2017-10-22
- time-end: 21:31:31.585900000
- obs_id: A04_171T01_9000001634
- exposure: 4160.04675812
- 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_11186cztM0_level2.evt
| modeM0/AS1A04_171T01_9000001634_11186cztM0_level2_quad_clean.evt
|
| Size (bytes) | 494,066,880 | 85,654,080 |
| Size | 471.2 MB
| 81.7 MB
|
| Events in quadrant A | 3,848,531 | 543,912 |
| Events in quadrant B | 4,178,794 | 545,699 |
| Events in quadrant C | 2,880,878 | 549,878 |
| Events in quadrant D | 3,622,778 | 510,443 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15755 | 3 |
| B | 0 | 16598 | 2 |
| C | 0 | 12980 | 2 |
| D | 0 | 15258 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6363 | 149 | 2.341663% |
| B | 6363 | 443 | 6.962125% |
| C | 6363 | 15 | 0.235738% |
| D | 6363 | 138 | 2.168788% |
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 | 7553 | 6364 | 67 | 67 | 0.89% | 1.05% |  |
| B | 7553 | 6364 | 222 | 222 | 2.94% | 3.49% |  |
| C | 7553 | 6364 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7553 | 6364 | 103 | 103 | 1.36% | 1.62% |  |
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 | 619127 | 4052.91 | 751 | 736 | 152.6 |
| A | 8 | 15 | 189809 | 1239.18 | 751 | 736 | 152.6 |
| A | 0 | 8 | 73571 | 477.36 | 751 | 736 | 152.6 |
| B | 4 | 239 | 1065153 | 7470.94 | 753 | 736 | 142.5 |
| B | 15 | 204 | 81954 | 570.05 | 753 | 736 | 142.5 |
| B | 3 | 189 | 31709 | 217.39 | 753 | 736 | 142.5 |
| C | 13 | 61 | 5449 | 27.38 | 737 | 741 | 172.0 |
| C | 8 | 222 | 3148 | 14.0 | 737 | 741 | 172.0 |
| C | 5 | 128 | 2656 | 11.14 | 737 | 741 | 172.0 |
| D | 2 | 14 | 433689 | 2516.7 | 716 | 698 | 172.0 |
| D | 2 | 136 | 116160 | 671.11 | 716 | 698 | 172.0 |
| D | 1 | 52 | 77369 | 445.64 | 716 | 698 | 172.0 |
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 |  |