Observation information
- date-obs: 2023-11-17
- time-obs: 19:44:19.779400000
- date-end: 2023-11-18
- time-end: 13:41:33.746400000
- obs_id: A13_037T01_9000005930
- exposure: 30275.5000819
- 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_9000005930cztM0_level2.fits
| modeM0/AS1A13_037T01_9000005930cztM0_level2_quad_clean.evt
|
Size (bytes) | 497,053,440 | 495,391,680 |
Size | 474.0 MB
| 472.4 MB
|
Events in quadrant A | 2,918,748 | 2,849,407 |
Events in quadrant B | 2,897,498 | 3,033,303 |
Events in quadrant C | 2,962,642 | 2,864,119 |
Events in quadrant D | 2,481,424 | 2,465,149 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1120 | 0 |
B | 0 | 1120 | 0 |
C | 0 | 1120 | 0 |
D | 0 | 1120 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 157038 | 0 |
B | 0 | 118145 | 0 |
C | 0 | 126921 | 0 |
D | 0 | 148145 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 68 | 0 |
B | 0 | 69 | 0 |
C | 0 | 69 | 0 |
D | 0 | 69 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 55249 | 2708 | 4.901446% |
B | 55247 | 1115 | 2.018209% |
C | 55248 | 833 | 1.507747% |
D | 55248 | 2547 | 4.610122% |
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 | 64557 | 55246 | 0 | 0 | 0.00% | 0.00% |  |
B | 64557 | 55248 | 0 | 0 | 0.00% | 0.00% |  |
C | 64557 | 55249 | 0 | 0 | 0.00% | 0.00% |  |
D | 64557 | 55191 | 0 | 0 | 0.00% | 0.00% |  |
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 | 7 | 110 | 2359 | 8.5 | 761 | 711 | 193.8 |
A | 0 | 29 | 2336 | 8.38 | 761 | 711 | 193.8 |
A | 7 | 109 | 2249 | 7.93 | 761 | 711 | 193.8 |
B | 2 | 9 | 2682 | 12.89 | 766 | 729 | 151.5 |
B | 2 | 8 | 2165 | 9.48 | 766 | 729 | 151.5 |
B | 3 | 17 | 2165 | 9.48 | 766 | 729 | 151.5 |
C | 3 | 202 | 2244 | 7.54 | 783 | 728 | 201.1 |
C | 1 | 81 | 2226 | 7.45 | 783 | 728 | 201.1 |
C | 1 | 80 | 2214 | 7.39 | 783 | 728 | 201.1 |
D | 7 | 3 | 1843 | 6.03 | 713 | 646 | 198.6 |
D | 3 | 14 | 1836 | 5.99 | 713 | 646 | 198.6 |
D | 10 | 189 | 1835 | 5.99 | 713 | 646 | 198.6 |
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 |  |