Observation information
- date-obs: 2023-05-29
- time-obs: 17:28:30.460500000
- date-end: 2023-05-29
- time-end: 19:33:29.455500000
- obs_id: T05_100T01_9000005668
- exposure: 4929.5818792
- 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_41458cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41458cztM0_level2_quad_clean.evt
|
Size (bytes) | 326,750,400 | 89,723,520 |
Size | 311.6 MB
| 85.6 MB
|
Events in quadrant A | 2,817,125 | 612,314 |
Events in quadrant B | 2,459,440 | 629,091 |
Events in quadrant C | 3,031,513 | 570,432 |
Events in quadrant D | 3,377,910 | 537,544 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22 | 0 |
B | 0 | 22 | 0 |
C | 0 | 22 | 0 |
D | 0 | 23 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11575 | 3 |
B | 0 | 10921 | 2 |
C | 0 | 12334 | 2 |
D | 0 | 13798 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5250 | 11 | 0.209524% |
B | 5250 | 18 | 0.342857% |
C | 5250 | 236 | 4.495238% |
D | 5250 | 188 | 3.580952% |
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 | 7133 | 5251 | 4 | 4 | 0.06% | 0.08% |  |
B | 7133 | 5251 | 4 | 4 | 0.06% | 0.08% |  |
C | 7133 | 5251 | 231 | 231 | 3.24% | 4.40% |  |
D | 7133 | 5251 | 171 | 171 | 2.40% | 3.26% |  |
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 | 513984 | 4316.33 | 583 | 574 | 118.9 |
A | 13 | 248 | 22948 | 188.1 | 583 | 574 | 118.9 |
A | 2 | 79 | 21919 | 179.45 | 583 | 574 | 118.9 |
B | 0 | 190 | 140750 | 1249.94 | 585 | 570 | 112.1 |
B | 12 | 111 | 13961 | 119.4 | 585 | 570 | 112.1 |
B | 11 | 111 | 12981 | 110.66 | 585 | 570 | 112.1 |
C | 0 | 10 | 633218 | 4846.84 | 556 | 561 | 130.5 |
C | 15 | 214 | 214610 | 1639.85 | 556 | 561 | 130.5 |
C | 9 | 54 | 14599 | 107.55 | 556 | 561 | 130.5 |
D | 1 | 47 | 376410 | 2727.11 | 562 | 548 | 137.8 |
D | 12 | 233 | 361976 | 2622.39 | 562 | 548 | 137.8 |
D | 13 | 249 | 345603 | 2503.59 | 562 | 548 | 137.8 |
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 |  |