Observation information
- date-obs: 2024-02-25
- time-obs: 04:16:29.809600000
- date-end: 2024-02-25
- time-end: 06:18:47.809300000
- obs_id: A13_042T03_9000006094
- exposure: 6853.26409674
- sourceid: NGC4826
- observer: rosolowsky
- ra_pnt: 194.1818
- dec_pnt: 21.68297
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_042T03_9000006094_45480cztM0_level2.fits
| modeM0/AS1A13_042T03_9000006094_45480cztM0_level2_quad_clean.evt
|
Size (bytes) | 495,475,200 | 114,327,360 |
Size | 472.5 MB
| 109.0 MB
|
Events in quadrant A | 5,658,348 | 755,405 |
Events in quadrant B | 3,462,515 | 789,278 |
Events in quadrant C | 3,618,102 | 749,245 |
Events in quadrant D | 5,031,818 | 656,971 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 146 | 0 |
B | 0 | 146 | 0 |
C | 0 | 146 | 0 |
D | 0 | 146 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22302 | 1 |
B | 0 | 15434 | 0 |
C | 0 | 16293 | 0 |
D | 0 | 19975 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7337 | 196 | 2.671392% |
B | 7338 | 128 | 1.744345% |
C | 7338 | 164 | 2.234941% |
D | 7338 | 453 | 6.173344% |
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 | 7337 | 7337 | 0 | 0 | 0.00% | 0.00% |  |
B | 7338 | 7338 | 12 | 12 | 0.16% | 0.16% |  |
C | 7338 | 7338 | 105 | 105 | 1.43% | 1.43% |  |
D | 7338 | 7338 | 296 | 296 | 4.03% | 4.03% |  |
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 | 2487419 | 14408.06 | 820 | 800 | 172.6 |
A | 3 | 137 | 9779 | 52.03 | 820 | 800 | 172.6 |
A | 13 | 254 | 6625 | 33.75 | 820 | 800 | 172.6 |
B | 3 | 112 | 74234 | 448.06 | 817 | 793 | 163.9 |
B | 15 | 85 | 56878 | 342.17 | 817 | 793 | 163.9 |
B | 5 | 172 | 34956 | 208.43 | 817 | 793 | 163.9 |
C | 14 | 254 | 311493 | 1647.59 | 797 | 801 | 188.6 |
C | 3 | 233 | 146044 | 770.22 | 797 | 801 | 188.6 |
C | 12 | 2 | 35969 | 186.49 | 797 | 801 | 188.6 |
D | 11 | 224 | 717970 | 3633.39 | 784 | 759 | 197.4 |
D | 11 | 241 | 625505 | 3164.96 | 784 | 759 | 197.4 |
D | 1 | 52 | 522797 | 2644.64 | 784 | 759 | 197.4 |
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 |  |