Observation information
- date-obs: 2024-12-12
- time-obs: 03:06:43.435000000
- date-end: 2024-12-12
- time-end: 05:08:02.412000000
- obs_id: A13_037T01_9000006440
- exposure: 214.705081999
- 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_49796cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49796cztM0_level2_quad_clean.evt
|
Size (bytes) | 911,090,880 | 56,738,880 |
Size | 868.9 MB
| 54.1 MB
|
Events in quadrant A | 6,189,168 | 570,840 |
Events in quadrant B | 3,604,815 | 668,440 |
Events in quadrant C | 8,748,262 | 24,513 |
Events in quadrant D | 14,706,998 | 26,133 |
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 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22668 | 1 |
B | 0 | 14746 | 1 |
C | 0 | 30337 | 3 |
D | 0 | 47909 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6124 | 684 | 11.169170% |
B | 6125 | 240 | 3.918367% |
C | 6124 | 5940 | 96.995428% |
D | 6124 | 5933 | 96.881123% |
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 | 7279 | 6125 | 470 | 470 | 6.46% | 7.67% |  |
B | 7280 | 6125 | 84 | 84 | 1.15% | 1.37% |  |
C | 7278 | 6123 | 1590 | 1590 | 21.85% | 25.97% |  |
D | 7278 | 6123 | 5165 | 5165 | 70.97% | 84.35% |  |
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 | 15 | 63 | 691021 | 4086.52 | 676 | 661 | 168.9 |
A | 4 | 249 | 294383 | 1738.66 | 676 | 661 | 168.9 |
A | 5 | 16 | 260080 | 1535.61 | 676 | 661 | 168.9 |
B | 10 | 28 | 248693 | 1689.27 | 692 | 669 | 146.8 |
B | 1 | 255 | 166274 | 1127.92 | 692 | 669 | 146.8 |
B | 4 | 206 | 136623 | 925.97 | 692 | 669 | 146.8 |
C | 15 | 147 | 2808204 | 82332.89 | 99 | 97 | 34.1 |
C | 15 | 148 | 1795032 | 52626.98 | 99 | 97 | 34.1 |
C | 15 | 213 | 875564 | 25668.44 | 99 | 97 | 34.1 |
D | 15 | 168 | 3212113 | 38229.74 | 260 | 249 | 84.0 |
D | 7 | 61 | 1683129 | 20030.76 | 260 | 249 | 84.0 |
D | 8 | 129 | 1473395 | 17534.36 | 260 | 249 | 84.0 |
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 |  |