Observation information
- date-obs: 2025-04-28
- time-obs: 11:33:10.490700000
- date-end: 2025-04-28
- time-end: 13:36:36.470800000
- obs_id: C09_011T05_9000006466
- exposure: 5238.5108428
- 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_51835cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51835cztM0_level2_quad_clean.evt
|
Size (bytes) | 851,178,240 | 95,981,760 |
Size | 811.7 MB
| 91.5 MB
|
Events in quadrant A | 6,650,468 | 649,888 |
Events in quadrant B | 6,540,553 | 706,514 |
Events in quadrant C | 7,142,953 | 594,296 |
Events in quadrant D | 10,601,930 | 439,591 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 148 | 0 |
B | 0 | 148 | 0 |
C | 0 | 148 | 0 |
D | 0 | 148 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24821 | 0 |
B | 0 | 24565 | 2 |
C | 0 | 26319 | 0 |
D | 0 | 36634 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7406 | 551 | 7.439914% |
B | 7406 | 555 | 7.493924% |
C | 7406 | 885 | 11.949770% |
D | 7406 | 2441 | 32.959762% |
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 | 7406 | 7406 | 489 | 489 | 6.60% | 6.60% |  |
B | 7406 | 7406 | 390 | 390 | 5.27% | 5.27% |  |
C | 7406 | 7406 | 770 | 770 | 10.40% | 10.40% |  |
D | 7406 | 7406 | 2118 | 2118 | 28.60% | 28.60% |  |
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 | 11 | 3 | 878410 | 4577.45 | 764 | 744 | 191.7 |
A | 12 | 3 | 755578 | 3936.82 | 764 | 744 | 191.7 |
A | 13 | 248 | 594020 | 3094.22 | 764 | 744 | 191.7 |
B | 10 | 128 | 845180 | 5253.13 | 753 | 726 | 160.8 |
B | 5 | 32 | 654908 | 4069.49 | 753 | 726 | 160.8 |
B | 5 | 185 | 612100 | 3803.2 | 753 | 726 | 160.8 |
C | 0 | 193 | 1118759 | 5585.37 | 724 | 715 | 200.2 |
C | 0 | 176 | 987574 | 4930.02 | 724 | 715 | 200.2 |
C | 15 | 157 | 276639 | 1378.42 | 724 | 715 | 200.2 |
D | 11 | 129 | 3331791 | 18610.62 | 638 | 615 | 179.0 |
D | 8 | 176 | 1426519 | 7966.24 | 638 | 615 | 179.0 |
D | 7 | 60 | 1021355 | 5702.67 | 638 | 615 | 179.0 |
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 |  |