Observation information
- date-obs: 2025-05-05
- time-obs: 12:12:31.282800000
- date-end: 2025-05-14
- time-end: 10:53:43.248400000
- obs_id: C09_011T06_9000006468
- exposure: 91201.0597644
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T06_9000006468cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,735,915,840 | 2,104,467,840 |
Size | 3.5 GB
| 2.0 GB
|
Events in quadrant A | 22,376,536 | 8,173,272 |
Events in quadrant B | 20,223,516 | 8,622,994 |
Events in quadrant C | 20,610,842 | 6,700,422 |
Events in quadrant D | 14,189,184 | 4,736,499 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1801636 | 0 |
B | 0 | 1915305 | 0 |
C | 0 | 2228304 | 0 |
D | 0 | 3088775 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 596 | 0 |
B | 0 | 596 | 0 |
C | 0 | 596 | 0 |
D | 0 | 596 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10514 | 0 |
B | 0 | 10512 | 0 |
C | 0 | 10512 | 0 |
D | 0 | 10514 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 517906 | 75447 | 14.567701% |
B | 517787 | 108877 | 21.027372% |
C | 517850 | 133319 | 25.744714% |
D | 517775 | 253682 | 48.994641% |
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 | 772141 | 515447 | 0 | 0 | 0.00% | 0.00% |  |
B | 772141 | 502904 | 0 | 0 | 0.00% | 0.00% |  |
C | 772139 | 512881 | 0 | 0 | 0.00% | 0.00% |  |
D | 772140 | 491499 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 25098 | 10.27 | 5960 | 5566 | 1902.5 |
A | 9 | 255 | 23939 | 9.66 | 5960 | 5566 | 1902.5 |
A | 14 | 204 | 20591 | 7.9 | 5960 | 5566 | 1902.5 |
B | 2 | 9 | 23791 | 14.93 | 5404 | 5136 | 1249.1 |
B | 2 | 8 | 21577 | 13.16 | 5404 | 5136 | 1249.1 |
B | 9 | 173 | 16784 | 9.32 | 5404 | 5136 | 1249.1 |
C | 2 | 31 | 17097 | 6.38 | 5586 | 5115 | 1878.2 |
C | 7 | 221 | 16385 | 6.0 | 5586 | 5115 | 1878.2 |
C | 3 | 202 | 16187 | 5.89 | 5586 | 5115 | 1878.2 |
D | 6 | 218 | 18994 | 11.13 | 4095 | 3628 | 1380.9 |
D | 3 | 30 | 14167 | 7.63 | 4095 | 3628 | 1380.9 |
D | 15 | 11 | 14065 | 7.56 | 4095 | 3628 | 1380.9 |
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 |  |