Observation information
- date-obs: 2025-05-09
- time-obs: 02:30:36.310800000
- date-end: 2025-05-09
- time-end: 04:39:25.293500000
- obs_id: C09_011T06_9000006468
- exposure: 6646.53237599
- 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_9000006468_51993cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51993cztM0_level2_quad_clean.evt
|
Size (bytes) | 836,147,520 | 102,381,120 |
Size | 797.4 MB
| 97.6 MB
|
Events in quadrant A | 8,152,463 | 647,166 |
Events in quadrant B | 4,588,326 | 755,090 |
Events in quadrant C | 7,860,367 | 603,340 |
Events in quadrant D | 9,753,622 | 556,398 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29631 | 0 |
B | 0 | 19307 | 0 |
C | 0 | 28811 | 0 |
D | 0 | 34409 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 154 | 0 |
B | 0 | 154 | 0 |
C | 0 | 154 | 0 |
D | 0 | 154 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7729 | 881 | 11.398629% |
B | 7729 | 232 | 3.001682% |
C | 7729 | 1197 | 15.487126% |
D | 7729 | 1313 | 16.987967% |
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 | 7729 | 7729 | 757 | 757 | 9.79% | 9.79% |  |
B | 7729 | 7729 | 131 | 131 | 1.69% | 1.69% |  |
C | 7729 | 7729 | 1075 | 1075 | 13.91% | 13.91% |  |
D | 7729 | 7729 | 1434 | 1434 | 18.55% | 18.55% |  |
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 | 7 | 64 | 1652837 | 8954.42 | 749 | 732 | 184.5 |
A | 4 | 95 | 1522252 | 8246.65 | 749 | 732 | 184.5 |
A | 3 | 14 | 371998 | 2012.26 | 749 | 732 | 184.5 |
B | 4 | 206 | 424010 | 2577.77 | 782 | 755 | 164.2 |
B | 10 | 247 | 112436 | 680.18 | 782 | 755 | 164.2 |
B | 1 | 223 | 99057 | 598.69 | 782 | 755 | 164.2 |
C | 15 | 224 | 3972808 | 19843.43 | 722 | 717 | 200.2 |
C | 15 | 192 | 276794 | 1379.2 | 722 | 717 | 200.2 |
C | 12 | 252 | 146235 | 726.97 | 722 | 717 | 200.2 |
D | 6 | 42 | 3556408 | 17185.1 | 718 | 685 | 206.9 |
D | 12 | 16 | 751850 | 3630.44 | 718 | 685 | 206.9 |
D | 12 | 6 | 639062 | 3085.33 | 718 | 685 | 206.9 |
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 |  |