Observation information
- date-obs: 2023-05-28
- time-obs: 16:51:50.522100000
- date-end: 2023-05-28
- time-end: 19:11:03.516400000
- obs_id: T05_100T01_9000005668
- exposure: 4860.40121526
- 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_41443cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41443cztM0_level2_quad_clean.evt
|
Size (bytes) | 316,664,640 | 88,332,480 |
Size | 302.0 MB
| 84.2 MB
|
Events in quadrant A | 2,875,010 | 599,336 |
Events in quadrant B | 2,429,150 | 615,110 |
Events in quadrant C | 3,321,162 | 552,107 |
Events in quadrant D | 2,686,776 | 540,385 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 32 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11767 | 3 |
B | 0 | 10875 | 2 |
C | 0 | 13246 | 2 |
D | 0 | 11743 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5255 | 16 | 0.304472% |
B | 5255 | 19 | 0.361560% |
C | 5255 | 324 | 6.165557% |
D | 5255 | 54 | 1.027593% |
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 | 7077 | 5256 | 4 | 4 | 0.06% | 0.08% |  |
B | 7077 | 5256 | 6 | 6 | 0.08% | 0.11% |  |
C | 7077 | 5256 | 289 | 289 | 4.08% | 5.50% |  |
D | 7077 | 5256 | 40 | 40 | 0.57% | 0.76% |  |
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 | 529542 | 4442.88 | 579 | 566 | 119.1 |
A | 2 | 79 | 49080 | 407.47 | 579 | 566 | 119.1 |
A | 12 | 189 | 20239 | 165.23 | 579 | 566 | 119.1 |
B | 0 | 190 | 66807 | 593.28 | 581 | 564 | 111.7 |
B | 5 | 255 | 37985 | 335.15 | 581 | 564 | 111.7 |
B | 0 | 186 | 15458 | 133.39 | 581 | 564 | 111.7 |
C | 0 | 10 | 657317 | 5142.75 | 547 | 551 | 127.7 |
C | 9 | 54 | 311099 | 2431.72 | 547 | 551 | 127.7 |
C | 15 | 214 | 211207 | 1649.52 | 547 | 551 | 127.7 |
D | 13 | 249 | 206624 | 1500.12 | 567 | 551 | 137.4 |
D | 10 | 34 | 82416 | 595.94 | 567 | 551 | 137.4 |
D | 1 | 52 | 65171 | 470.4 | 567 | 551 | 137.4 |
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 |  |