Observation information
- date-obs: 2023-05-29
- time-obs: 06:40:06.487500000
- date-end: 2023-05-29
- time-end: 09:09:31.483700000
- obs_id: T05_100T01_9000005668
- exposure: 4975.43951148
- 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_41451cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41451cztM0_level2_quad_clean.evt
|
Size (bytes) | 322,260,480 | 83,868,480 |
Size | 307.3 MB
| 80.0 MB
|
Events in quadrant A | 3,072,731 | 558,118 |
Events in quadrant B | 2,447,635 | 581,587 |
Events in quadrant C | 2,970,007 | 535,529 |
Events in quadrant D | 3,020,065 | 487,750 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27 | 1 |
B | 0 | 27 | 1 |
C | 0 | 27 | 1 |
D | 0 | 27 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 127 | 7 |
B | 0 | 128 | 12 |
C | 0 | 129 | 13 |
D | 0 | 130 | 22 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14365 | 2091 |
B | 0 | 12647 | 1679 |
C | 0 | 13935 | 1867 |
D | 0 | 14938 | 2121 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5326 | 28 | 0.525723% |
B | 5370 | 8 | 0.148976% |
C | 5383 | 177 | 3.288129% |
D | 5340 | 192 | 3.595506% |
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 | 8965 | 5683 | 15 | 15 | 0.17% | 0.26% |  |
B | 8965 | 5704 | 1 | 1 | 0.01% | 0.02% |  |
C | 8965 | 5709 | 170 | 170 | 1.90% | 2.98% |  |
D | 8965 | 5689 | 167 | 167 | 1.86% | 2.94% |  |
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 | 505640 | 4119.67 | 591 | 577 | 122.6 |
A | 13 | 248 | 255827 | 2082.01 | 591 | 577 | 122.6 |
A | 2 | 79 | 21920 | 174.09 | 591 | 577 | 122.6 |
B | 5 | 255 | 44486 | 376.62 | 593 | 576 | 116.6 |
B | 0 | 190 | 41088 | 347.48 | 593 | 576 | 116.6 |
B | 0 | 186 | 22694 | 189.71 | 593 | 576 | 116.6 |
C | 0 | 10 | 514182 | 3819.65 | 572 | 576 | 134.5 |
C | 15 | 214 | 223493 | 1657.82 | 572 | 576 | 134.5 |
C | 12 | 249 | 4978 | 32.74 | 572 | 576 | 134.5 |
D | 13 | 249 | 686190 | 4915.69 | 567 | 550 | 139.5 |
D | 1 | 47 | 88526 | 630.74 | 567 | 550 | 139.5 |
D | 2 | 249 | 29531 | 207.78 | 567 | 550 | 139.5 |
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 |  |