Observation information
- date-obs: 2024-12-14
- time-obs: 01:54:59.898500000
- date-end: 2024-12-14
- time-end: 04:02:26.873500000
- obs_id: A13_037T01_9000006440
- exposure: 460.250089705
- 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_49825cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49825cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,090,722,240 | 61,188,480 |
Size | 1.0 GB
| 58.4 MB
|
Events in quadrant A | 8,125,165 | 557,399 |
Events in quadrant B | 3,674,925 | 721,175 |
Events in quadrant C | 13,915,318 | 75,339 |
Events in quadrant D | 14,158,943 | 47,107 |
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 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28630 | 2 |
B | 0 | 15308 | 1 |
C | 0 | 45731 | 1 |
D | 0 | 46421 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6471 | 1245 | 19.239685% |
B | 6471 | 153 | 2.364395% |
C | 6472 | 5882 | 90.883807% |
D | 6472 | 6104 | 94.313968% |
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 | 7646 | 6472 | 1107 | 1107 | 14.48% | 17.10% |  |
B | 7646 | 6472 | 36 | 36 | 0.47% | 0.56% |  |
C | 7647 | 6472 | 4146 | 4146 | 54.22% | 64.06% |  |
D | 7647 | 6473 | 4357 | 4357 | 56.98% | 67.31% |  |
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 | 2096842 | 11900.45 | 690 | 672 | 176.1 |
A | 0 | 175 | 1209737 | 6864.15 | 690 | 672 | 176.1 |
A | 4 | 13 | 470846 | 2669.29 | 690 | 672 | 176.1 |
B | 10 | 28 | 123839 | 792.45 | 738 | 714 | 155.4 |
B | 4 | 206 | 107266 | 685.78 | 738 | 714 | 155.4 |
B | 5 | 49 | 97897 | 625.48 | 738 | 714 | 155.4 |
C | 15 | 147 | 4473598 | 61148.86 | 251 | 250 | 73.2 |
C | 15 | 197 | 1730902 | 23657.31 | 251 | 250 | 73.2 |
C | 15 | 174 | 1219163 | 16662.05 | 251 | 250 | 73.2 |
D | 7 | 61 | 7390218 | 83188.07 | 280 | 269 | 88.8 |
D | 15 | 184 | 1860386 | 20939.19 | 280 | 269 | 88.8 |
D | 7 | 126 | 918499 | 10336.44 | 280 | 269 | 88.8 |
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 |  |