Observation information
- date-obs: 2025-05-11
- time-obs: 23:55:28.734900000
- date-end: 2025-05-12
- time-end: 02:06:18.718200000
- obs_id: C09_011T06_9000006468
- exposure: 4888.21311456
- 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_52036cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52036cztM0_level2_quad_clean.evt
|
Size (bytes) | 949,527,360 | 97,488,000 |
Size | 905.5 MB
| 93.0 MB
|
Events in quadrant A | 5,120,284 | 703,858 |
Events in quadrant B | 7,386,336 | 702,833 |
Events in quadrant C | 8,893,247 | 587,498 |
Events in quadrant D | 13,140,773 | 409,819 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20743 | 0 |
B | 0 | 27507 | 0 |
C | 0 | 31991 | 1 |
D | 0 | 44604 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158 | 0 |
B | 0 | 158 | 0 |
C | 0 | 158 | 0 |
D | 0 | 158 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7869 | 293 | 3.723472% |
B | 7869 | 1028 | 13.063922% |
C | 7868 | 1656 | 21.047280% |
D | 7868 | 3156 | 40.111845% |
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 | 7870 | 7870 | 257 | 257 | 3.27% | 3.27% |  |
B | 7870 | 7870 | 567 | 567 | 7.20% | 7.20% |  |
C | 7869 | 7869 | 1333 | 1333 | 16.94% | 16.94% |  |
D | 7869 | 7869 | 3026 | 3026 | 38.45% | 38.45% |  |
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 | 8 | 43 | 563106 | 2844.4 | 794 | 773 | 197.7 |
A | 4 | 95 | 279061 | 1407.64 | 794 | 773 | 197.7 |
A | 3 | 114 | 244469 | 1232.67 | 794 | 773 | 197.7 |
B | 7 | 0 | 2939659 | 17903.14 | 779 | 752 | 164.2 |
B | 10 | 128 | 612128 | 3724.36 | 779 | 752 | 164.2 |
B | 4 | 170 | 123986 | 750.71 | 779 | 752 | 164.2 |
C | 15 | 224 | 3469760 | 17218.83 | 727 | 722 | 201.5 |
C | 4 | 5 | 970094 | 4811.55 | 727 | 722 | 201.5 |
C | 13 | 3 | 569974 | 2825.52 | 727 | 722 | 201.5 |
D | 15 | 94 | 4861689 | 26607.45 | 631 | 601 | 182.7 |
D | 6 | 42 | 3414437 | 18685.83 | 631 | 601 | 182.7 |
D | 12 | 0 | 1125783 | 6158.75 | 631 | 601 | 182.7 |
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 |  |