Observation information
- date-obs: 2023-05-29
- time-obs: 20:43:30.452300000
- date-end: 2023-05-29
- time-end: 22:57:59.445900000
- obs_id: T05_100T01_9000005668
- exposure: 4434.97990602
- 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_41460cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41460cztM0_level2_quad_clean.evt
|
Size (bytes) | 306,138,240 | 83,113,920 |
Size | 292.0 MB
| 79.3 MB
|
Events in quadrant A | 2,629,796 | 568,474 |
Events in quadrant B | 2,214,941 | 592,827 |
Events in quadrant C | 2,985,429 | 527,100 |
Events in quadrant D | 3,129,861 | 493,872 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 33 | 0 |
C | 0 | 33 | 0 |
D | 0 | 34 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 96 | 0 |
B | 0 | 96 | 0 |
C | 0 | 96 | 0 |
D | 0 | 96 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10699 | 2 |
B | 0 | 9712 | 2 |
C | 0 | 11752 | 2 |
D | 0 | 12603 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4771 | 13 | 0.272480% |
B | 4771 | 9 | 0.188640% |
C | 4771 | 266 | 5.575351% |
D | 4771 | 204 | 4.275833% |
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 | 6863 | 4772 | 6 | 6 | 0.09% | 0.13% |  |
B | 6863 | 4772 | 0 | 0 | 0.00% | 0.00% |  |
C | 6863 | 4772 | 263 | 263 | 3.83% | 5.51% |  |
D | 6863 | 4772 | 183 | 183 | 2.67% | 3.83% |  |
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 | 468289 | 4179.4 | 543 | 533 | 111.9 |
A | 2 | 79 | 49829 | 440.46 | 543 | 533 | 111.9 |
A | 13 | 254 | 8038 | 67.06 | 543 | 533 | 111.9 |
B | 0 | 190 | 57024 | 537.75 | 546 | 531 | 105.1 |
B | 12 | 111 | 13441 | 122.89 | 546 | 531 | 105.1 |
B | 11 | 111 | 12183 | 110.91 | 546 | 531 | 105.1 |
C | 0 | 10 | 713583 | 5916.49 | 513 | 516 | 120.5 |
C | 15 | 214 | 197369 | 1633.34 | 513 | 516 | 120.5 |
C | 9 | 54 | 64876 | 534.01 | 513 | 516 | 120.5 |
D | 13 | 249 | 573715 | 4482.09 | 515 | 501 | 127.9 |
D | 1 | 47 | 293241 | 2289.0 | 515 | 501 | 127.9 |
D | 12 | 233 | 84123 | 653.86 | 515 | 501 | 127.9 |
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 |  |