Observation information
- date-obs: 2025-05-10
- time-obs: 13:22:25.257600000
- date-end: 2025-05-10
- time-end: 15:22:50.008200000
- obs_id: C09_011T06_9000006468
- exposure: 4559.09342432
- 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_52015cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52015cztM0_level2_quad_clean.evt
|
Size (bytes) | 721,537,920 | 82,074,240 |
Size | 688.1 MB
| 78.3 MB
|
Events in quadrant A | 5,063,268 | 559,645 |
Events in quadrant B | 5,884,035 | 590,380 |
Events in quadrant C | 5,853,659 | 510,121 |
Events in quadrant D | 9,427,720 | 390,645 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19251 | 1 |
B | 0 | 21790 | 1 |
C | 0 | 21683 | 1 |
D | 0 | 32338 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6215 | 475 | 7.642800% |
B | 6216 | 687 | 11.052124% |
C | 6216 | 812 | 13.063063% |
D | 6215 | 1910 | 30.732100% |
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 | 7225 | 6215 | 391 | 391 | 5.41% | 6.29% |  |
B | 7226 | 6216 | 420 | 420 | 5.81% | 6.76% |  |
C | 7226 | 6216 | 781 | 781 | 10.81% | 12.56% |  |
D | 7224 | 6214 | 2058 | 2058 | 28.49% | 33.12% |  |
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 | 4 | 95 | 1481631 | 9380.08 | 635 | 619 | 157.9 |
A | 3 | 14 | 324395 | 2050.66 | 635 | 619 | 157.9 |
A | 4 | 3 | 278560 | 1760.36 | 635 | 619 | 157.9 |
B | 7 | 0 | 1482708 | 11086.5 | 632 | 610 | 133.7 |
B | 12 | 32 | 638357 | 4770.52 | 632 | 610 | 133.7 |
B | 0 | 171 | 248177 | 1851.87 | 632 | 610 | 133.7 |
C | 15 | 224 | 2109530 | 12525.93 | 607 | 601 | 168.4 |
C | 4 | 5 | 458929 | 2722.23 | 607 | 601 | 168.4 |
C | 13 | 3 | 412300 | 2445.28 | 607 | 601 | 168.4 |
D | 12 | 17 | 4208874 | 27016.96 | 545 | 521 | 155.8 |
D | 6 | 42 | 1492469 | 9578.07 | 545 | 521 | 155.8 |
D | 8 | 176 | 556065 | 3566.5 | 545 | 521 | 155.8 |
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 |  |