Observation information
- date-obs: 2025-05-05
- time-obs: 20:28:29.957500000
- date-end: 2025-05-05
- time-end: 22:30:32.940700000
- obs_id: C09_011T06_9000006468
- exposure: 1341.37453729
- 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_51945cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51945cztM0_level2_quad_clean.evt
|
Size (bytes) | 897,364,800 | 67,501,440 |
Size | 855.8 MB
| 64.4 MB
|
Events in quadrant A | 7,305,839 | 466,330 |
Events in quadrant B | 4,035,186 | 631,345 |
Events in quadrant C | 9,189,031 | 395,149 |
Events in quadrant D | 12,212,468 | 121,890 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25939 | 1 |
B | 0 | 16408 | 1 |
C | 0 | 31548 | 1 |
D | 0 | 40475 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6133 | 1503 | 24.506767% |
B | 6133 | 277 | 4.516550% |
C | 6134 | 2377 | 38.751223% |
D | 6134 | 4974 | 81.089012% |
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 | 7323 | 6134 | 1384 | 1384 | 18.90% | 22.56% |  |
B | 7323 | 6134 | 122 | 122 | 1.67% | 1.99% |  |
C | 7324 | 6135 | 2189 | 2189 | 29.89% | 35.68% |  |
D | 7324 | 6135 | 3500 | 3500 | 47.79% | 57.05% |  |
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 | 4 | 159 | 2469831 | 17827.49 | 552 | 539 | 138.5 |
A | 7 | 64 | 1718121 | 12400.39 | 552 | 539 | 138.5 |
A | 12 | 3 | 441322 | 3182.31 | 552 | 539 | 138.5 |
B | 4 | 171 | 420230 | 3114.94 | 633 | 611 | 134.7 |
B | 12 | 32 | 181696 | 1344.24 | 633 | 611 | 134.7 |
B | 10 | 44 | 171603 | 1269.32 | 633 | 611 | 134.7 |
C | 15 | 224 | 6184809 | 42124.43 | 524 | 519 | 146.8 |
C | 12 | 249 | 288242 | 1959.83 | 524 | 519 | 146.8 |
C | 13 | 3 | 149360 | 1013.83 | 524 | 519 | 146.8 |
D | 12 | 17 | 9055156 | 128608.86 | 240 | 229 | 70.4 |
D | 6 | 42 | 1144949 | 16258.68 | 240 | 229 | 70.4 |
D | 3 | 12 | 304960 | 4328.15 | 240 | 229 | 70.4 |
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 |  |