Observation information
- date-obs: 2024-12-11
- time-obs: 14:57:01.576600000
- date-end: 2024-12-11
- time-end: 19:59:21.520500000
- obs_id: A13_037T01_9000006440
- exposure: 22.024068296
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000006440_49790cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49790cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,865,864,960 | 115,476,480 |
Size | 2.7 GB
| 110.1 MB
|
Events in quadrant A | 34,597,339 | 586,362 |
Events in quadrant B | 10,680,006 | 1,699,306 |
Events in quadrant C | 16,366,972 | 8,007 |
Events in quadrant D | 43,093,939 | 1,820 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 7 | 0 |
B | 0 | 7 | 0 |
C | 0 | 7 | 0 |
D | 0 | 7 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 354 | 0 |
B | 0 | 354 | 0 |
C | 0 | 354 | 0 |
D | 0 | 354 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 114716 | 1 |
B | 0 | 43485 | 1 |
C | 0 | 61016 | 1 |
D | 0 | 139797 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17396 | 11252 | 64.681536% |
B | 17397 | 525 | 3.017762% |
C | 17397 | 17332 | 99.626372% |
D | 17397 | 17382 | 99.913778% |
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 | 17756 | 17396 | 10144 | 10144 | 57.13% | 58.31% |  |
B | 17757 | 17398 | 283 | 283 | 1.59% | 1.63% |  |
C | 17756 | 17396 | 2634 | 2634 | 14.83% | 15.14% |  |
D | 17756 | 17396 | 16342 | 16342 | 92.04% | 93.94% |  |
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 | 0 | 98 | 8682978 | 26661.86 | 1232 | 1196 | 325.6 |
A | 12 | 50 | 5794702 | 17791.93 | 1232 | 1196 | 325.6 |
A | 8 | 8 | 2329333 | 7149.74 | 1232 | 1196 | 325.6 |
B | 10 | 28 | 811098 | 2097.72 | 1826 | 1767 | 385.8 |
B | 4 | 206 | 458458 | 1183.7 | 1826 | 1767 | 385.8 |
B | 1 | 255 | 324394 | 836.22 | 1826 | 1767 | 385.8 |
C | 15 | 147 | 6101591 | 101215.38 | 121 | 115 | 60.3 |
C | 1 | 44 | 1794193 | 29761.37 | 121 | 115 | 60.3 |
C | 15 | 148 | 1772941 | 29408.83 | 121 | 115 | 60.3 |
D | 8 | 129 | 9909702 | 45311.7 | 408 | 377 | 218.7 |
D | 15 | 168 | 6747925 | 30854.06 | 408 | 377 | 218.7 |
D | 14 | 52 | 4885204 | 22336.52 | 408 | 377 | 218.7 |
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 |  |