Observation information
- date-obs: 2023-05-28
- time-obs: 21:55:10.510000000
- date-end: 2023-05-29
- time-end: 00:22:30.503300000
- obs_id: T05_100T01_9000005668
- exposure: 4509.54469264
- 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_41446cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41446cztM0_level2_quad_clean.evt
|
Size (bytes) | 301,602,240 | 83,980,800 |
Size | 287.6 MB
| 80.1 MB
|
Events in quadrant A | 2,956,246 | 569,033 |
Events in quadrant B | 2,287,997 | 592,271 |
Events in quadrant C | 3,014,213 | 530,966 |
Events in quadrant D | 2,526,677 | 509,449 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 39 | 0 |
B | 0 | 39 | 0 |
C | 0 | 39 | 0 |
D | 0 | 40 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11820 | 3 |
B | 0 | 10037 | 2 |
C | 0 | 11842 | 2 |
D | 0 | 10934 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4862 | 47 | 0.966680% |
B | 4862 | 39 | 0.802139% |
C | 4862 | 277 | 5.697244% |
D | 4862 | 45 | 0.925545% |
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 | 6984 | 4863 | 25 | 25 | 0.36% | 0.51% |  |
B | 6984 | 4863 | 19 | 19 | 0.27% | 0.39% |  |
C | 6984 | 4863 | 278 | 278 | 3.98% | 5.72% |  |
D | 6984 | 4863 | 47 | 47 | 0.67% | 0.97% |  |
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 | 470926 | 4137.19 | 552 | 540 | 113.7 |
A | 13 | 248 | 234282 | 2055.83 | 552 | 540 | 113.7 |
A | 2 | 79 | 104507 | 914.42 | 552 | 540 | 113.7 |
B | 0 | 190 | 68087 | 634.66 | 551 | 537 | 106.4 |
B | 0 | 186 | 38551 | 357.15 | 551 | 537 | 106.4 |
B | 12 | 111 | 13130 | 118.32 | 551 | 537 | 106.4 |
C | 0 | 10 | 799953 | 6569.75 | 518 | 522 | 121.7 |
C | 15 | 214 | 198170 | 1624.28 | 518 | 522 | 121.7 |
C | 13 | 61 | 3473 | 24.25 | 518 | 522 | 121.7 |
D | 13 | 249 | 202786 | 1557.16 | 529 | 515 | 129.9 |
D | 13 | 171 | 110960 | 850.25 | 529 | 515 | 129.9 |
D | 1 | 47 | 86844 | 664.6 | 529 | 515 | 129.9 |
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 |  |