Observation information
- date-obs: 2025-05-02
- time-obs: 07:45:16.301300000
- date-end: 2025-05-02
- time-end: 08:04:34.030100000
- obs_id: C09_011T07_9000006470
- exposure: 91.5555066466
- 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_52071cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52071cztM0_level2_quad_clean.evt
|
Size (bytes) | 203,751,360 | 11,450,880 |
Size | 194.3 MB
| 10.9 MB
|
Events in quadrant A | 1,879,425 | 66,134 |
Events in quadrant B | 1,143,631 | 103,816 |
Events in quadrant C | 1,630,535 | 81,202 |
Events in quadrant D | 2,796,178 | 7,624 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 24 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6394 | 0 |
B | 0 | 4164 | 0 |
C | 0 | 5655 | 2 |
D | 0 | 9081 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 1159 | 533 | 45.987921% |
B | 1159 | 179 | 15.444349% |
C | 1158 | 338 | 29.188256% |
D | 1158 | 1088 | 93.955095% |
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 | 1159 | 1159 | 473 | 473 | 40.81% | 40.81% |  |
B | 1159 | 1159 | 133 | 133 | 11.48% | 11.48% |  |
C | 1158 | 1158 | 274 | 274 | 23.66% | 23.66% |  |
D | 1158 | 1158 | 896 | 896 | 77.37% | 77.37% |  |
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 | 95 | 1298020 | 44299.18 | 113 | 110 | 29.3 |
A | 5 | 240 | 44342 | 1509.69 | 113 | 110 | 29.3 |
A | 6 | 196 | 30913 | 1051.34 | 113 | 110 | 29.3 |
B | 10 | 128 | 580328 | 21900.76 | 115 | 112 | 26.5 |
B | 10 | 254 | 26866 | 1009.85 | 115 | 112 | 26.5 |
B | 4 | 171 | 18767 | 704.15 | 115 | 112 | 26.5 |
C | 15 | 224 | 1144940 | 37342.83 | 105 | 103 | 30.7 |
C | 13 | 3 | 18314 | 594.01 | 105 | 103 | 30.7 |
C | 12 | 252 | 13455 | 435.52 | 105 | 103 | 30.7 |
D | 6 | 42 | 1092925 | 54481.08 | 64 | 61 | 20.1 |
D | 15 | 94 | 689712 | 34380.24 | 64 | 61 | 20.1 |
D | 13 | 187 | 344825 | 17187.06 | 64 | 61 | 20.1 |
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 |  |