Observation information
- date-obs: 2025-05-01
- time-obs: 20:48:45.746200000
- date-end: 2025-05-01
- time-end: 23:04:29.726600000
- obs_id: C09_011T05_9000006466
- exposure: 3019.78701413
- 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_51886cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51886cztM0_level2_quad_clean.evt
|
Size (bytes) | 733,766,400 | 85,348,800 |
Size | 699.8 MB
| 81.4 MB
|
Events in quadrant A | 5,734,851 | 599,775 |
Events in quadrant B | 4,265,996 | 671,548 |
Events in quadrant C | 4,419,774 | 605,511 |
Events in quadrant D | 12,244,004 | 259,433 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21517 | 2 |
B | 0 | 17104 | 3 |
C | 0 | 17667 | 2 |
D | 0 | 40832 | 2 |
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 | 6419 | 346 | 5.390248% |
B | 6418 | 160 | 2.492988% |
C | 6418 | 276 | 4.300405% |
D | 6418 | 3720 | 57.961982% |
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 | 7535 | 6420 | 278 | 278 | 3.69% | 4.33% |  |
B | 7534 | 6419 | 73 | 73 | 0.97% | 1.14% |  |
C | 7534 | 6419 | 198 | 198 | 2.63% | 3.08% |  |
D | 7534 | 6418 | 3073 | 3073 | 40.79% | 47.88% |  |
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 | 1273716 | 7466.17 | 670 | 652 | 170.5 |
A | 4 | 175 | 455442 | 2667.22 | 670 | 652 | 170.5 |
A | 11 | 3 | 448302 | 2625.34 | 670 | 652 | 170.5 |
B | 0 | 171 | 237756 | 1669.2 | 676 | 655 | 142.0 |
B | 10 | 254 | 210169 | 1474.99 | 676 | 655 | 142.0 |
B | 4 | 170 | 196226 | 1376.83 | 676 | 655 | 142.0 |
C | 14 | 245 | 708009 | 3886.87 | 666 | 662 | 182.0 |
C | 15 | 231 | 146403 | 800.85 | 666 | 662 | 182.0 |
C | 15 | 219 | 130396 | 712.89 | 666 | 662 | 182.0 |
D | 11 | 129 | 6267062 | 49806.92 | 437 | 419 | 125.8 |
D | 12 | 17 | 1743100 | 13850.73 | 437 | 419 | 125.8 |
D | 3 | 12 | 1181621 | 9388.13 | 437 | 419 | 125.8 |
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 |  |