Observation information
- date-obs: 2023-05-29
- time-obs: 22:30:10.446900000
- date-end: 2023-05-29
- time-end: 22:57:59.445900000
- obs_id: T05_100T01_9000005668
- exposure: 490.548734665
- sourceid: NGC 4395
- observer: hengxiao
- ra_pnt: 186.4536
- dec_pnt: 33.54693
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_100T01_9000005668_41461cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41461cztM0_level2_quad_clean.evt
|
Size (bytes) | 47,975,040 | 11,162,880 |
Size | 45.8 MB
| 10.6 MB
|
Events in quadrant A | 417,653 | 78,307 |
Events in quadrant B | 302,048 | 81,093 |
Events in quadrant C | 633,825 | 60,757 |
Events in quadrant D | 370,439 | 67,004 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1671 | 1 |
B | 0 | 1289 | 1 |
C | 0 | 2267 | 1 |
D | 0 | 1529 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 624 | 3 | 0.480769% |
B | 624 | 1 | 0.160256% |
C | 624 | 127 | 20.352564% |
D | 624 | 33 | 5.288462% |
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 | 624 | 624 | 2 | 2 | 0.32% | 0.32% |  |
B | 624 | 624 | 0 | 0 | 0.00% | 0.00% |  |
C | 624 | 624 | 125 | 125 | 20.03% | 20.03% |  |
D | 624 | 624 | 23 | 23 | 3.69% | 3.69% |  |
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 | 10 | 83 | 127884 | 7744.23 | 70 | 69 | 16.5 |
A | 2 | 79 | 12896 | 777.18 | 70 | 69 | 16.5 |
A | 10 | 67 | 1511 | 87.37 | 70 | 69 | 16.5 |
B | 0 | 190 | 17388 | 1073.82 | 71 | 70 | 16.1 |
B | 12 | 111 | 1738 | 103.43 | 71 | 70 | 16.1 |
B | 11 | 111 | 1531 | 90.59 | 71 | 70 | 16.1 |
C | 0 | 10 | 318388 | 19704.83 | 61 | 61 | 16.2 |
C | 9 | 54 | 38148 | 2357.63 | 61 | 61 | 16.2 |
C | 15 | 214 | 27807 | 1717.51 | 61 | 61 | 16.2 |
D | 13 | 249 | 74698 | 4018.91 | 67 | 64 | 18.6 |
D | 10 | 199 | 21516 | 1155.15 | 67 | 64 | 18.6 |
D | 2 | 249 | 7450 | 397.72 | 67 | 64 | 18.6 |
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 |  |