Observation information
- date-obs: 2024-12-17
- time-obs: 01:12:45.901300000
- date-end: 2024-12-17
- time-end: 03:13:32.067300000
- obs_id: A13_037T01_9000006440
- exposure: 77.7590956688
- 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_49869cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49869cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,069,905,600 | 45,239,040 |
Size | 1020.3 MB
| 43.1 MB
|
Events in quadrant A | 11,488,114 | 289,301 |
Events in quadrant B | 4,036,888 | 641,947 |
Events in quadrant C | 10,886,766 | 8,258 |
Events in quadrant D | 12,724,852 | 8,909 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 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 | 38306 | 6 |
B | 0 | 16082 | 1 |
C | 0 | 36530 | 1 |
D | 0 | 41974 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6031 | 3401 | 56.391975% |
B | 6031 | 308 | 5.106947% |
C | 6032 | 5974 | 99.038462% |
D | 6032 | 5959 | 98.789788% |
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 | 7245 | 6030 | 3238 | 3238 | 44.69% | 53.70% |  |
B | 7246 | 6031 | 123 | 123 | 1.70% | 2.04% |  |
C | 7246 | 6031 | 2462 | 2462 | 33.98% | 40.82% |  |
D | 7246 | 6031 | 4011 | 4011 | 55.35% | 66.51% |  |
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 | 6835317 | 59209.45 | 439 | 428 | 115.4 |
A | 8 | 62 | 772783 | 6690.78 | 439 | 428 | 115.4 |
A | 8 | 38 | 319411 | 2763.29 | 439 | 428 | 115.4 |
B | 4 | 206 | 610320 | 4354.36 | 666 | 647 | 140.0 |
B | 0 | 213 | 229560 | 1634.93 | 666 | 647 | 140.0 |
B | 0 | 229 | 179600 | 1278.11 | 666 | 647 | 140.0 |
C | 4 | 111 | 2588577 | 82678.63 | 98 | 97 | 31.3 |
C | 15 | 196 | 2036494 | 65044.55 | 98 | 97 | 31.3 |
C | 15 | 197 | 1266009 | 40434.49 | 98 | 97 | 31.3 |
D | 7 | 61 | 9250853 | 241766.95 | 109 | 104 | 38.3 |
D | 15 | 185 | 1040582 | 27192.74 | 109 | 104 | 38.3 |
D | 8 | 176 | 580293 | 15163.15 | 109 | 104 | 38.3 |
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 |  |