Observation information
- date-obs: 2023-05-29
- time-obs: 15:43:30.464800000
- date-end: 2023-05-29
- time-end: 17:49:11.459500000
- obs_id: T05_100T01_9000005668
- exposure: 5061.48697364
- 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_41457cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41457cztM0_level2_quad_clean.evt
|
Size (bytes) | 310,875,840 | 89,608,320 |
Size | 296.5 MB
| 85.5 MB
|
Events in quadrant A | 2,842,801 | 604,477 |
Events in quadrant B | 2,436,209 | 619,543 |
Events in quadrant C | 3,050,749 | 565,919 |
Events in quadrant D | 2,758,024 | 545,950 |
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 | 11860 | 3 |
B | 0 | 11029 | 2 |
C | 0 | 12588 | 2 |
D | 0 | 12125 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5383 | 13 | 0.241501% |
B | 5383 | 10 | 0.185770% |
C | 5383 | 231 | 4.291287% |
D | 5383 | 57 | 1.058889% |
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 | 7145 | 5384 | 2 | 2 | 0.03% | 0.04% |  |
B | 7145 | 5384 | 1 | 1 | 0.01% | 0.02% |  |
C | 7145 | 5384 | 221 | 221 | 3.09% | 4.10% |  |
D | 7145 | 5384 | 43 | 43 | 0.60% | 0.80% |  |
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 | 535415 | 4367.15 | 591 | 578 | 122.5 |
A | 2 | 79 | 14683 | 115.17 | 591 | 578 | 122.5 |
A | 13 | 254 | 8375 | 63.66 | 591 | 578 | 122.5 |
B | 0 | 190 | 102851 | 889.06 | 590 | 573 | 115.0 |
B | 12 | 111 | 14276 | 119.11 | 590 | 573 | 115.0 |
B | 11 | 111 | 13317 | 110.78 | 590 | 573 | 115.0 |
C | 0 | 10 | 599315 | 4545.14 | 564 | 567 | 131.7 |
C | 15 | 214 | 220962 | 1673.03 | 564 | 567 | 131.7 |
C | 9 | 54 | 24346 | 180.51 | 564 | 567 | 131.7 |
D | 12 | 233 | 207214 | 1452.86 | 578 | 561 | 142.2 |
D | 13 | 249 | 132419 | 927.02 | 578 | 561 | 142.2 |
D | 1 | 47 | 107445 | 751.44 | 578 | 561 | 142.2 |
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 |  |