Observation information
- date-obs: 2020-12-01
- time-obs: 18:26:37.975400000
- date-end: 2020-12-02
- time-end: 16:44:18.167900000
- obs_id: A10_021T08_9000004042
- exposure: 22275.2378401
- sourceid: NGC 4689
- observer: rosolowsky
- ra_pnt: 191.8
- dec_pnt: 13.90036
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A10_021T08_9000004042cztM0_level2_bc.evt
| modeM0/AS1A10_021T08_9000004042cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,516,665,600 | 459,112,320 |
Size | 1.4 GB
| 437.8 MB
|
Events in quadrant A | 7,678,619 | 2,968,163 |
Events in quadrant B | 8,186,285 | 3,017,621 |
Events in quadrant C | 7,868,002 | 2,867,730 |
Events in quadrant D | 19,782,997 | 2,625,200 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 74216 | 0 |
B | 0 | 76699 | 0 |
C | 0 | 76555 | 0 |
D | 0 | 119976 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 49 | 0 |
B | 0 | 48 | 0 |
C | 0 | 48 | 0 |
D | 0 | 49 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 727 | 0 |
B | 0 | 728 | 0 |
C | 0 | 726 | 0 |
D | 0 | 726 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 35328 | 579 | 1.638927% |
B | 35335 | 853 | 2.414037% |
C | 35320 | 948 | 2.684032% |
D | 35278 | 4864 | 13.787630% |
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 | 45813 | 33670 | 0 | 0 | 0.00% | 0.00% |  |
B | 45813 | 33660 | 17 | 17 | 0.04% | 0.05% |  |
C | 45813 | 33660 | 0 | 0 | 0.00% | 0.00% |  |
D | 45811 | 33609 | 1490 | 1490 | 3.25% | 4.43% |  |
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 | 345405 | 838.93 | 1887 | 1852 | 409.5 |
A | 13 | 254 | 50644 | 119.15 | 1887 | 1852 | 409.5 |
A | 8 | 192 | 27792 | 63.34 | 1887 | 1852 | 409.5 |
B | 10 | 245 | 533214 | 1482.47 | 1896 | 1848 | 358.4 |
B | 15 | 32 | 80502 | 219.44 | 1896 | 1848 | 358.4 |
B | 0 | 190 | 80153 | 218.47 | 1896 | 1848 | 358.4 |
C | 3 | 233 | 516294 | 1219.01 | 1805 | 1795 | 422.1 |
C | 2 | 16 | 286303 | 674.09 | 1805 | 1795 | 422.1 |
C | 15 | 208 | 127975 | 298.96 | 1805 | 1795 | 422.1 |
D | 1 | 52 | 7295866 | 18439.14 | 1716 | 1661 | 395.6 |
D | 8 | 195 | 3522772 | 8901.07 | 1716 | 1661 | 395.6 |
D | 7 | 80 | 1266504 | 3197.42 | 1716 | 1661 | 395.6 |
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 |  |