Observation information
- date-obs: 2024-04-17
- time-obs: 01:02:08.215400000
- date-end: 2024-04-17
- time-end: 06:48:29.007800000
- obs_id: A13_094T02_9000006190
- exposure: 16968.4518224
- sourceid: NGC 6251
- observer: sannagulati
- ra_pnt: 248.1332
- dec_pnt: 82.53789
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_094T02_9000006190_46251cztM0_level2.fits
| modeM0/AS1A13_094T02_9000006190_46251cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,541,750,400 | 294,347,520 |
Size | 1.4 GB
| 280.7 MB
|
Events in quadrant A | 17,080,333 | 1,972,272 |
Events in quadrant B | 11,476,993 | 2,016,785 |
Events in quadrant C | 9,336,028 | 2,022,854 |
Events in quadrant D | 17,685,869 | 1,567,894 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 394 | 0 |
B | 0 | 394 | 0 |
C | 0 | 394 | 0 |
D | 0 | 394 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 64158 | 4 |
B | 0 | 47207 | 4 |
C | 0 | 42189 | 4 |
D | 0 | 66077 | 13 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 19321 | 388 | 2.008178% |
B | 19321 | 381 | 1.971948% |
C | 19321 | 203 | 1.050670% |
D | 19319 | 2542 | 13.158031% |
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 | 20781 | 19323 | 9 | 9 | 0.04% | 0.05% | |
B | 20781 | 19323 | 126 | 126 | 0.61% | 0.65% | |
C | 20781 | 19325 | 150 | 150 | 0.72% | 0.78% | |
D | 20781 | 19323 | 2470 | 2470 | 11.89% | 12.78% | |
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 | 10 | 83 | 8738624 | 20302.48 | 2082 | 2036 | 430.3 |
A | 9 | 191 | 83824 | 190.06 | 2082 | 2036 | 430.3 |
A | 6 | 10 | 67181 | 151.39 | 2082 | 2036 | 430.3 |
B | 3 | 112 | 2573009 | 6367.48 | 2086 | 2016 | 403.8 |
B | 5 | 172 | 276637 | 680.14 | 2086 | 2016 | 403.8 |
B | 5 | 255 | 147560 | 360.46 | 2086 | 2016 | 403.8 |
C | 12 | 2 | 726600 | 1517.05 | 2070 | 2082 | 477.6 |
C | 1 | 3 | 261547 | 543.29 | 2070 | 2082 | 477.6 |
C | 14 | 254 | 81552 | 166.4 | 2070 | 2082 | 477.6 |
D | 1 | 52 | 7532389 | 15420.51 | 1965 | 1903 | 488.3 |
D | 5 | 235 | 1032853 | 2111.12 | 1965 | 1903 | 488.3 |
D | 2 | 249 | 423550 | 863.43 | 1965 | 1903 | 488.3 |
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 |
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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 | |