Observation information
- date-obs: 2024-12-15
- time-obs: 11:04:55.522300000
- date-end: 2024-12-15
- time-end: 13:02:18.501200000
- obs_id: A13_037T01_9000006440
- exposure: 827.16372776
- 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_49845cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49845cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,289,560,320 | 55,186,560 |
Size | 1.2 GB
| 52.6 MB
|
Events in quadrant A | 15,932,533 | 320,331 |
Events in quadrant B | 3,944,114 | 713,010 |
Events in quadrant C | 12,617,479 | 40,420 |
Events in quadrant D | 14,696,073 | 97,419 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 52112 | 0 |
B | 0 | 16590 | 0 |
C | 0 | 42383 | 0 |
D | 0 | 48450 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7042 | 5423 | 77.009372% |
B | 7043 | 108 | 1.533437% |
C | 7043 | 7043 | 100.000000% |
D | 7043 | 7043 | 100.000000% |
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 | 7041 | 7041 | 5110 | 5110 | 72.57% | 72.57% |  |
B | 7043 | 7043 | 75 | 75 | 1.06% | 1.06% |  |
C | 7042 | 7042 | 2099 | 2099 | 29.81% | 29.81% |  |
D | 7042 | 7042 | 4535 | 4535 | 64.40% | 64.40% |  |
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 | 10222373 | 96471.53 | 379 | 368 | 106.0 |
A | 3 | 84 | 857664 | 8090.84 | 379 | 368 | 106.0 |
A | 3 | 130 | 628545 | 5928.5 | 379 | 368 | 106.0 |
B | 0 | 229 | 402948 | 2540.09 | 743 | 719 | 158.4 |
B | 4 | 206 | 256065 | 1612.52 | 743 | 719 | 158.4 |
B | 10 | 44 | 72591 | 453.87 | 743 | 719 | 158.4 |
C | 15 | 236 | 2091730 | 59679.12 | 63 | 60 | 35.0 |
C | 15 | 174 | 1713387 | 48884.31 | 63 | 60 | 35.0 |
C | 15 | 197 | 1401565 | 39987.47 | 63 | 60 | 35.0 |
D | 8 | 129 | 4522256 | 67539.2 | 139 | 130 | 67.0 |
D | 7 | 61 | 2137571 | 31923.27 | 139 | 130 | 67.0 |
D | 7 | 126 | 1034302 | 15445.64 | 139 | 130 | 67.0 |
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 |  |