Observation information
- date-obs: 2025-05-14
- time-obs: 19:37:05.171400000
- date-end: 2025-05-14
- time-end: 21:41:55.154500000
- obs_id: C09_011T07_9000006470
- exposure: 109.385709047
- 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_011T07_9000006470_52078cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52078cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,095,857,280 | 67,985,280 |
Size | 1.0 GB
| 64.8 MB
|
Events in quadrant A | 3,420,503 | 630,904 |
Events in quadrant B | 9,374,177 | 503,014 |
Events in quadrant C | 9,478,474 | 456,414 |
Events in quadrant D | 17,785,134 | 9,633 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14852 | 1 |
B | 0 | 32436 | 1 |
C | 0 | 32841 | 1 |
D | 0 | 57060 | 5 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6570 | 85 | 1.293760% |
B | 6571 | 2023 | 30.786790% |
C | 6571 | 2158 | 32.841272% |
D | 6570 | 6497 | 98.888889% |
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 | 7490 | 6571 | 52 | 52 | 0.69% | 0.79% |  |
B | 7491 | 6571 | 1709 | 1709 | 22.81% | 26.01% |  |
C | 7491 | 6572 | 1998 | 1998 | 26.67% | 30.40% |  |
D | 7489 | 6569 | 6456 | 6456 | 86.21% | 98.28% |  |
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 | 6 | 196 | 187928 | 1088.65 | 683 | 666 | 172.0 |
A | 4 | 3 | 90507 | 522.29 | 683 | 666 | 172.0 |
A | 8 | 246 | 69026 | 397.41 | 683 | 666 | 172.0 |
B | 10 | 254 | 4454166 | 33473.81 | 632 | 610 | 133.0 |
B | 10 | 128 | 1096806 | 8239.23 | 632 | 610 | 133.0 |
B | 5 | 172 | 217678 | 1631.53 | 632 | 610 | 133.0 |
C | 15 | 224 | 5056744 | 30805.97 | 586 | 581 | 164.1 |
C | 15 | 193 | 514200 | 3129.36 | 586 | 581 | 164.1 |
C | 2 | 239 | 467010 | 2841.84 | 586 | 581 | 164.1 |
D | 15 | 94 | 14629185 | 290503.81 | 164 | 156 | 50.4 |
D | 6 | 42 | 1449849 | 28788.06 | 164 | 156 | 50.4 |
D | 3 | 12 | 359007 | 7126.08 | 164 | 156 | 50.4 |
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 |  |