Observation information
- date-obs: 2023-05-09
- time-obs: 01:11:14.398400000
- date-end: 2023-05-09
- time-end: 03:38:01.391500000
- obs_id: A12_025T12_9000005604
- exposure: 4927.09076959
- sourceid: NGC4459
- observer: rosolowsky
- ra_pnt: 187.25
- dec_pnt: 13.97837
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_025T12_9000005604_41151cztM0_level2.fits
| modeM0/AS1A12_025T12_9000005604_41151cztM0_level2_quad_clean.evt
|
Size (bytes) | 374,336,640 | 89,487,360 |
Size | 357.0 MB
| 85.3 MB
|
Events in quadrant A | 2,977,978 | 614,149 |
Events in quadrant B | 4,460,125 | 557,335 |
Events in quadrant C | 3,348,602 | 591,404 |
Events in quadrant D | 2,633,183 | 554,366 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32 | 0 |
B | 0 | 32 | 0 |
C | 0 | 32 | 0 |
D | 0 | 32 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12089 | 3 |
B | 0 | 16754 | 2 |
C | 0 | 13245 | 2 |
D | 0 | 11908 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5610 | 10 | 0.178253% |
B | 5610 | 651 | 11.604278% |
C | 5610 | 79 | 1.408200% |
D | 5610 | 14 | 0.249554% |
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 | 8807 | 5612 | 3 | 3 | 0.03% | 0.05% |  |
B | 8807 | 5612 | 545 | 545 | 6.19% | 9.71% |  |
C | 8807 | 5612 | 65 | 65 | 0.74% | 1.16% |  |
D | 8807 | 5612 | 9 | 9 | 0.10% | 0.16% |  |
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 | 518766 | 4026.32 | 623 | 609 | 128.7 |
A | 12 | 189 | 22281 | 168.4 | 623 | 609 | 128.7 |
A | 2 | 79 | 13918 | 103.42 | 623 | 609 | 128.7 |
B | 7 | 202 | 1804876 | 15663.32 | 588 | 570 | 115.2 |
B | 0 | 245 | 166352 | 1439.16 | 588 | 570 | 115.2 |
B | 5 | 255 | 165155 | 1428.77 | 588 | 570 | 115.2 |
C | 9 | 54 | 469429 | 3317.07 | 603 | 607 | 141.3 |
C | 15 | 214 | 240826 | 1699.63 | 603 | 607 | 141.3 |
C | 14 | 254 | 140584 | 990.38 | 603 | 607 | 141.3 |
D | 2 | 249 | 122233 | 822.36 | 603 | 587 | 147.9 |
D | 2 | 16 | 100985 | 678.72 | 603 | 587 | 147.9 |
D | 5 | 32 | 37786 | 251.47 | 603 | 587 | 147.9 |
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 |  |