Observation information
- date-obs: 2024-12-15
- time-obs: 19:46:22.424100000
- date-end: 2024-12-15
- time-end: 21:45:10.400800000
- obs_id: A13_037T01_9000006440
- exposure: 25.3628140092
- 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_49850cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49850cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,056,286,080 | 47,246,400 |
Size | 1007.4 MB
| 45.1 MB
|
Events in quadrant A | 9,483,275 | 361,596 |
Events in quadrant B | 3,526,420 | 615,652 |
Events in quadrant C | 12,932,290 | 21,070 |
Events in quadrant D | 12,681,614 | 2,442 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32389 | 1 |
B | 0 | 14799 | 1 |
C | 0 | 42650 | 1 |
D | 0 | 41898 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6149 | 2407 | 39.144576% |
B | 6149 | 141 | 2.293056% |
C | 6149 | 5983 | 97.300374% |
D | 6149 | 6133 | 99.739795% |
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 | 7129 | 6149 | 2161 | 2161 | 30.31% | 35.14% |  |
B | 7129 | 6150 | 91 | 91 | 1.28% | 1.48% |  |
C | 7128 | 6148 | 3553 | 3553 | 49.85% | 57.79% |  |
D | 7128 | 6148 | 3444 | 3444 | 48.32% | 56.02% |  |
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 | 3 | 84 | 2477278 | 17953.26 | 539 | 525 | 138.0 |
A | 0 | 98 | 2108981 | 15283.58 | 539 | 525 | 138.0 |
A | 4 | 4 | 600616 | 4349.88 | 539 | 525 | 138.0 |
B | 4 | 206 | 343558 | 2491.38 | 644 | 622 | 137.6 |
B | 0 | 229 | 300277 | 2176.95 | 644 | 622 | 137.6 |
B | 10 | 28 | 126834 | 916.91 | 644 | 622 | 137.6 |
C | 1 | 44 | 2975224 | 50788.4 | 183 | 182 | 58.6 |
C | 15 | 189 | 1933731 | 33008.56 | 183 | 182 | 58.6 |
C | 15 | 197 | 1125823 | 19216.37 | 183 | 182 | 58.6 |
D | 8 | 129 | 4929714 | 98581.69 | 122 | 115 | 50.0 |
D | 7 | 61 | 4227436 | 84537.6 | 122 | 115 | 50.0 |
D | 7 | 126 | 659865 | 13193.62 | 122 | 115 | 50.0 |
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 |  |