Observation information
- date-obs: 2024-12-14
- time-obs: 21:12:34.679500000
- date-end: 2024-12-14
- time-end: 23:09:35.656700000
- obs_id: A13_037T01_9000006440
- exposure: 102.334716856
- 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_49837cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49837cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,158,768,000 | 41,679,360 |
Size | 1.1 GB
| 39.7 MB
|
Events in quadrant A | 12,742,705 | 184,933 |
Events in quadrant B | 3,704,537 | 603,311 |
Events in quadrant C | 11,807,315 | 9,517 |
Events in quadrant D | 14,179,741 | 47,875 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 41959 | 1 |
B | 0 | 15070 | 1 |
C | 0 | 39165 | 1 |
D | 0 | 46205 | 4 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5951 | 4221 | 70.929256% |
B | 5951 | 132 | 2.218115% |
C | 5952 | 5877 | 98.739919% |
D | 5951 | 5441 | 91.430012% |
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 | 7021 | 5951 | 3911 | 3911 | 55.70% | 65.72% |  |
B | 7021 | 5952 | 75 | 75 | 1.07% | 1.26% |  |
C | 7022 | 5952 | 2795 | 2795 | 39.80% | 46.96% |  |
D | 7020 | 5950 | 4908 | 4908 | 69.91% | 82.49% |  |
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 | 4 | 4 | 7018872 | 58677.61 | 457 | 444 | 119.6 |
A | 0 | 98 | 866732 | 7242.61 | 457 | 444 | 119.6 |
A | 3 | 84 | 840285 | 7021.5 | 457 | 444 | 119.6 |
B | 10 | 28 | 373104 | 2809.08 | 625 | 604 | 132.6 |
B | 0 | 229 | 317685 | 2391.16 | 625 | 604 | 132.6 |
B | 10 | 44 | 110537 | 829.02 | 625 | 604 | 132.6 |
C | 15 | 230 | 4833706 | 102747.84 | 147 | 145 | 47.0 |
C | 15 | 197 | 2048970 | 43552.23 | 147 | 145 | 47.0 |
C | 15 | 174 | 872866 | 18551.58 | 147 | 145 | 47.0 |
D | 8 | 176 | 3105819 | 50653.7 | 195 | 187 | 61.3 |
D | 7 | 61 | 2320821 | 37850.17 | 195 | 187 | 61.3 |
D | 7 | 126 | 1398573 | 22808.05 | 195 | 187 | 61.3 |
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 |
 |
 |
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 |  |