Observation information
- date-obs: 2024-12-10
- time-obs: 21:37:27.778900000
- date-end: 2024-12-10
- time-end: 23:39:11.753300000
- obs_id: A13_037T01_9000006440
- exposure: 185.571882188
- 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_49777cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49777cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,083,024,000 | 54,622,080 |
Size | 1.0 GB
| 52.1 MB
|
Events in quadrant A | 8,401,069 | 488,306 |
Events in quadrant B | 3,398,140 | 637,148 |
Events in quadrant C | 11,985,907 | 17,148 |
Events in quadrant D | 15,807,873 | 62,339 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29466 | 1 |
B | 0 | 14677 | 1 |
C | 0 | 40024 | 2 |
D | 0 | 51389 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6424 | 1304 | 20.298879% |
B | 6424 | 148 | 2.303861% |
C | 6424 | 6266 | 97.540473% |
D | 6424 | 5855 | 91.142590% |
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 | 7304 | 6423 | 1079 | 1079 | 14.77% | 16.80% |  |
B | 7304 | 6425 | 60 | 60 | 0.82% | 0.93% |  |
C | 7303 | 6420 | 3223 | 3223 | 44.13% | 50.20% |  |
D | 7303 | 6423 | 5244 | 5244 | 71.81% | 81.64% |  |
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 | 8 | 8 | 1408167 | 8959.79 | 618 | 601 | 157.1 |
A | 7 | 64 | 1264803 | 8047.22 | 618 | 601 | 157.1 |
A | 15 | 63 | 594263 | 3778.93 | 618 | 601 | 157.1 |
B | 5 | 185 | 168856 | 1165.88 | 676 | 653 | 144.3 |
B | 4 | 206 | 125083 | 862.48 | 676 | 653 | 144.3 |
B | 7 | 252 | 63742 | 437.3 | 676 | 653 | 144.3 |
C | 15 | 147 | 4889707 | 78075.9 | 127 | 122 | 62.6 |
C | 15 | 148 | 1682249 | 26859.86 | 127 | 122 | 62.6 |
C | 15 | 233 | 1039266 | 16592.84 | 127 | 122 | 62.6 |
D | 8 | 129 | 4038452 | 39901.63 | 317 | 305 | 101.2 |
D | 15 | 142 | 2787026 | 27536.07 | 317 | 305 | 101.2 |
D | 15 | 168 | 2604034 | 25727.9 | 317 | 305 | 101.2 |
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 |  |