Observation information
- date-obs: 2024-09-19
- time-obs: 11:27:42.780000000
- date-end: 2024-09-19
- time-end: 13:25:54.774100000
- obs_id: A13_037T01_9000006436
- exposure: 6609.33502895
- 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_9000006436_48554cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48554cztM0_level2_quad_clean.evt
|
Size (bytes) | 485,553,600 | 109,935,360 |
Size | 463.1 MB
| 104.8 MB
|
Events in quadrant A | 6,999,083 | 733,626 |
Events in quadrant B | 4,064,807 | 722,723 |
Events in quadrant C | 2,923,502 | 724,203 |
Events in quadrant D | 3,435,648 | 654,115 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26681 | 0 |
B | 0 | 17437 | 0 |
C | 0 | 14402 | 0 |
D | 0 | 15662 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7092 | 123 | 1.734349% |
B | 7092 | 426 | 6.006768% |
C | 7093 | 4 | 0.056394% |
D | 7092 | 68 | 0.958827% |
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 | 7092 | 7092 | 3 | 3 | 0.04% | 0.04% | |
B | 7092 | 7092 | 314 | 314 | 4.43% | 4.43% | |
C | 7093 | 7093 | 1 | 1 | 0.01% | 0.01% | |
D | 7093 | 7093 | 56 | 56 | 0.79% | 0.79% | |
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 | 10 | 83 | 3928113 | 24292.39 | 761 | 745 | 161.7 |
A | 12 | 189 | 55215 | 336.92 | 761 | 745 | 161.7 |
A | 13 | 248 | 41035 | 249.21 | 761 | 745 | 161.7 |
B | 12 | 16 | 1050402 | 7201.14 | 738 | 714 | 145.8 |
B | 5 | 255 | 81975 | 557.47 | 738 | 714 | 145.8 |
B | 12 | 111 | 19177 | 126.66 | 738 | 714 | 145.8 |
C | 12 | 250 | 7024 | 35.5 | 747 | 749 | 176.8 |
C | 14 | 254 | 5465 | 26.68 | 747 | 749 | 176.8 |
C | 13 | 61 | 4942 | 23.72 | 747 | 749 | 176.8 |
D | 2 | 249 | 399034 | 2143.55 | 743 | 719 | 185.8 |
D | 5 | 32 | 52767 | 280.1 | 743 | 719 | 185.8 |
D | 2 | 234 | 39261 | 207.42 | 743 | 719 | 185.8 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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Quadrant B |
Quadrant D |
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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 |
|
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Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
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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 |
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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 | |