Observation information
- date-obs: 2025-05-03
- time-obs: 21:30:25.346100000
- date-end: 2025-05-03
- time-end: 23:41:11.327400000
- obs_id: C09_011T05_9000006466
- exposure: 3741.10954237
- 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_51916cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51916cztM0_level2_quad_clean.evt
|
Size (bytes) | 742,916,160 | 83,822,400 |
Size | 708.5 MB
| 79.9 MB
|
Events in quadrant A | 4,514,005 | 599,201 |
Events in quadrant B | 5,695,407 | 601,196 |
Events in quadrant C | 5,666,870 | 561,000 |
Events in quadrant D | 11,123,727 | 325,616 |
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 | 18027 | 2 |
B | 0 | 21524 | 2 |
C | 0 | 21309 | 2 |
D | 0 | 37472 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6464 | 278 | 4.300743% |
B | 6464 | 914 | 14.139851% |
C | 6464 | 638 | 9.870050% |
D | 6464 | 3030 | 46.875000% |
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 | 7629 | 6466 | 167 | 167 | 2.19% | 2.58% |  |
B | 7629 | 6466 | 592 | 592 | 7.76% | 9.16% |  |
C | 7629 | 6465 | 515 | 515 | 6.75% | 7.97% |  |
D | 7629 | 6466 | 2843 | 2843 | 37.27% | 43.97% |  |
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 | 565751 | 3395.33 | 664 | 649 | 166.4 |
A | 12 | 3 | 415845 | 2494.64 | 664 | 649 | 166.4 |
A | 15 | 174 | 130523 | 780.33 | 664 | 649 | 166.4 |
B | 4 | 206 | 1237882 | 9092.15 | 643 | 622 | 136.1 |
B | 4 | 171 | 760932 | 5587.23 | 643 | 622 | 136.1 |
B | 12 | 32 | 530743 | 3895.66 | 643 | 622 | 136.1 |
C | 10 | 22 | 790798 | 4469.33 | 638 | 633 | 176.8 |
C | 15 | 158 | 337940 | 1907.88 | 638 | 633 | 176.8 |
C | 15 | 248 | 331311 | 1870.38 | 638 | 633 | 176.8 |
D | 12 | 17 | 4744744 | 31201.77 | 481 | 462 | 152.1 |
D | 15 | 94 | 2033904 | 13373.36 | 481 | 462 | 152.1 |
D | 2 | 172 | 1195858 | 7861.77 | 481 | 462 | 152.1 |
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 |  |