Observation information
- date-obs: 2025-04-29
- time-obs: 21:57:06.145400000
- date-end: 2025-04-30
- time-end: 00:19:20.106300000
- obs_id: C09_011T05_9000006466
- exposure: 4573.67094916
- 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_51857cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51857cztM0_level2_quad_clean.evt
|
Size (bytes) | 650,949,120 | 93,496,320 |
Size | 620.8 MB
| 89.2 MB
|
Events in quadrant A | 5,917,262 | 615,622 |
Events in quadrant B | 4,248,194 | 705,665 |
Events in quadrant C | 3,498,583 | 638,722 |
Events in quadrant D | 9,908,167 | 399,651 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22319 | 2 |
B | 0 | 17231 | 2 |
C | 0 | 15378 | 2 |
D | 0 | 34159 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 18 | 0 |
C | 0 | 18 | 0 |
D | 0 | 18 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6756 | 443 | 6.557134% |
B | 6756 | 145 | 2.146240% |
C | 6756 | 91 | 1.346951% |
D | 6755 | 2492 | 36.891192% |
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 | 7912 | 6758 | 334 | 334 | 4.22% | 4.94% |  |
B | 7912 | 6758 | 75 | 75 | 0.95% | 1.11% |  |
C | 7912 | 6758 | 58 | 58 | 0.73% | 0.86% |  |
D | 7911 | 6756 | 2389 | 2389 | 30.20% | 35.36% |  |
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 | 0 | 228 | 920214 | 5262.85 | 692 | 676 | 174.7 |
A | 12 | 3 | 913224 | 5222.84 | 692 | 676 | 174.7 |
A | 5 | 240 | 325967 | 1861.76 | 692 | 676 | 174.7 |
B | 10 | 44 | 206287 | 1381.8 | 708 | 684 | 148.8 |
B | 0 | 171 | 156855 | 1049.58 | 708 | 684 | 148.8 |
B | 4 | 81 | 146288 | 978.57 | 708 | 684 | 148.8 |
C | 13 | 3 | 279392 | 1446.79 | 698 | 691 | 192.6 |
C | 15 | 224 | 103087 | 531.56 | 698 | 691 | 192.6 |
C | 10 | 22 | 72486 | 372.7 | 698 | 691 | 192.6 |
D | 11 | 129 | 6647421 | 43923.74 | 535 | 515 | 151.3 |
D | 3 | 12 | 240462 | 1585.61 | 535 | 515 | 151.3 |
D | 7 | 96 | 208292 | 1373.02 | 535 | 515 | 151.3 |
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 |  |