Observation information
- date-obs: 2023-05-29
- time-obs: 13:58:30.470100000
- date-end: 2023-05-29
- time-end: 16:03:40.464700000
- obs_id: T05_100T01_9000005668
- exposure: 5107.41650271
- 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_41455cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41455cztM0_level2_quad_clean.evt
|
Size (bytes) | 320,448,960 | 88,378,560 |
Size | 305.6 MB
| 84.3 MB
|
Events in quadrant A | 2,895,372 | 591,498 |
Events in quadrant B | 2,446,366 | 607,450 |
Events in quadrant C | 3,457,827 | 556,519 |
Events in quadrant D | 2,638,301 | 539,435 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20 | 0 |
B | 0 | 20 | 0 |
C | 0 | 20 | 0 |
D | 0 | 21 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 112 | 0 |
B | 0 | 112 | 0 |
C | 0 | 112 | 0 |
D | 0 | 112 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12067 | 3 |
B | 0 | 11096 | 2 |
C | 0 | 13717 | 2 |
D | 0 | 11809 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5440 | 25 | 0.459559% |
B | 5440 | 8 | 0.147059% |
C | 5440 | 244 | 4.485294% |
D | 5440 | 28 | 0.514706% |
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 | 7054 | 5441 | 10 | 10 | 0.14% | 0.18% |  |
B | 7054 | 5441 | 2 | 2 | 0.03% | 0.04% |  |
C | 7054 | 5441 | 222 | 222 | 3.15% | 4.08% |  |
D | 7054 | 5441 | 31 | 31 | 0.44% | 0.57% |  |
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 | 539897 | 4342.71 | 597 | 583 | 124.2 |
A | 13 | 248 | 38662 | 306.62 | 597 | 583 | 124.2 |
A | 13 | 254 | 9128 | 68.81 | 597 | 583 | 124.2 |
B | 0 | 190 | 95080 | 823.15 | 593 | 577 | 114.8 |
B | 12 | 111 | 14487 | 121.16 | 593 | 577 | 114.8 |
B | 11 | 111 | 13752 | 114.76 | 593 | 577 | 114.8 |
C | 0 | 10 | 621954 | 4669.21 | 567 | 569 | 133.1 |
C | 9 | 54 | 396674 | 2976.41 | 567 | 569 | 133.1 |
C | 15 | 214 | 223757 | 1677.08 | 567 | 569 | 133.1 |
D | 1 | 47 | 182882 | 1254.7 | 585 | 569 | 145.3 |
D | 13 | 249 | 119288 | 817.04 | 585 | 569 | 145.3 |
D | 2 | 249 | 28452 | 191.89 | 585 | 569 | 145.3 |
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 |  |