Observation information
- date-obs: 2024-12-11
- time-obs: 01:02:57.735900000
- date-end: 2024-12-11
- time-end: 03:07:19.710700000
- obs_id: A13_037T01_9000006440
- exposure: 277.048386633
- 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_49780cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49780cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,062,921,600 | 56,859,840 |
Size | 1013.7 MB
| 54.2 MB
|
Events in quadrant A | 7,464,276 | 543,838 |
Events in quadrant B | 3,857,549 | 662,886 |
Events in quadrant C | 11,890,137 | 31,288 |
Events in quadrant D | 15,643,889 | 41,545 |
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 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26708 | 1 |
B | 0 | 15643 | 1 |
C | 0 | 39757 | 1 |
D | 0 | 50785 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6332 | 951 | 15.018951% |
B | 6333 | 235 | 3.710722% |
C | 6333 | 6091 | 96.178746% |
D | 6333 | 6004 | 94.804990% |
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 | 7462 | 6333 | 763 | 763 | 10.23% | 12.05% |  |
B | 7463 | 6334 | 98 | 98 | 1.31% | 1.55% |  |
C | 7462 | 6329 | 2987 | 2987 | 40.03% | 47.20% |  |
D | 7463 | 6333 | 5205 | 5205 | 69.74% | 82.19% |  |
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 | 721632 | 4251.02 | 662 | 645 | 169.6 |
A | 12 | 50 | 568501 | 3348.14 | 662 | 645 | 169.6 |
A | 7 | 64 | 549605 | 3236.73 | 662 | 645 | 169.6 |
B | 1 | 207 | 426320 | 2873.07 | 693 | 672 | 148.2 |
B | 5 | 185 | 128255 | 861.17 | 693 | 672 | 148.2 |
B | 10 | 128 | 121571 | 816.05 | 693 | 672 | 148.2 |
C | 15 | 147 | 6379015 | 127486.35 | 102 | 98 | 50.0 |
C | 15 | 148 | 2060161 | 41171.55 | 102 | 98 | 50.0 |
C | 1 | 23 | 649447 | 12977.62 | 102 | 98 | 50.0 |
D | 15 | 142 | 4575557 | 47958.7 | 296 | 284 | 95.4 |
D | 8 | 129 | 2483360 | 26027.97 | 296 | 284 | 95.4 |
D | 15 | 168 | 1658950 | 17386.39 | 296 | 284 | 95.4 |
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 |  |