Observation information
- date-obs: 2025-04-28
- time-obs: 23:22:06.368200000
- date-end: 2025-04-29
- time-end: 01:44:51.343200000
- obs_id: C09_011T05_9000006466
- exposure: 4456.40395415
- 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_011T05_9000006466_51843cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51843cztM0_level2_quad_clean.evt
|
Size (bytes) | 806,814,720 | 88,502,400 |
Size | 769.4 MB
| 84.4 MB
|
Events in quadrant A | 4,589,424 | 638,012 |
Events in quadrant B | 7,295,871 | 641,307 |
Events in quadrant C | 6,617,758 | 544,804 |
Events in quadrant D | 10,845,210 | 388,687 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18358 | 2 |
B | 0 | 26306 | 2 |
C | 0 | 24358 | 2 |
D | 0 | 36890 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19 | 0 |
B | 0 | 20 | 0 |
C | 0 | 20 | 0 |
D | 0 | 20 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6699 | 177 | 2.642185% |
B | 6699 | 907 | 13.539334% |
C | 6699 | 1154 | 17.226452% |
D | 6699 | 2612 | 38.990894% |
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 | 7854 | 6700 | 125 | 125 | 1.59% | 1.87% |  |
B | 7854 | 6700 | 654 | 654 | 8.33% | 9.76% |  |
C | 7854 | 6700 | 840 | 840 | 10.70% | 12.54% |  |
D | 7853 | 6699 | 2339 | 2339 | 29.78% | 34.92% |  |
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 | 12 | 3 | 772145 | 4497.91 | 693 | 675 | 171.5 |
A | 11 | 3 | 329746 | 1918.58 | 693 | 675 | 171.5 |
A | 5 | 240 | 167475 | 972.5 | 693 | 675 | 171.5 |
B | 10 | 254 | 1781415 | 12468.4 | 674 | 652 | 142.8 |
B | 4 | 206 | 976914 | 6835.51 | 674 | 652 | 142.8 |
B | 5 | 185 | 707114 | 4946.45 | 674 | 652 | 142.8 |
C | 15 | 218 | 2239694 | 12801.42 | 630 | 625 | 174.9 |
C | 15 | 219 | 585730 | 3345.22 | 630 | 625 | 174.9 |
C | 15 | 192 | 514540 | 2938.2 | 630 | 625 | 174.9 |
D | 11 | 129 | 6007833 | 38777.4 | 551 | 530 | 154.9 |
D | 8 | 176 | 736457 | 4750.44 | 551 | 530 | 154.9 |
D | 12 | 6 | 605227 | 3903.35 | 551 | 530 | 154.9 |
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 |  |