Observation information
- date-obs: 2023-05-09
- time-obs: 08:15:11.378900000
- date-end: 2023-05-09
- time-end: 09:23:27.376000000
- obs_id: A12_025T12_9000005604
- exposure: 2784.98837876
- sourceid: NGC4459
- observer: rosolowsky
- ra_pnt: 187.25
- dec_pnt: 13.97837
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_025T12_9000005604_41156cztM0_level2.fits
| modeM0/AS1A12_025T12_9000005604_41156cztM0_level2_quad_clean.evt
|
Size (bytes) | 186,246,720 | 54,362,880 |
Size | 177.6 MB
| 51.8 MB
|
Events in quadrant A | 1,647,929 | 376,252 |
Events in quadrant B | 1,484,085 | 388,655 |
Events in quadrant C | 1,838,831 | 350,848 |
Events in quadrant D | 1,698,080 | 326,117 |
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 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 56 | 0 |
B | 0 | 56 | 0 |
C | 0 | 56 | 0 |
D | 0 | 56 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6499 | 1 |
B | 0 | 6045 | 1 |
C | 0 | 7161 | 1 |
D | 0 | 6808 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 2871 | 5 | 0.174155% |
B | 2871 | 10 | 0.348311% |
C | 2871 | 58 | 2.020202% |
D | 2871 | 75 | 2.612330% |
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 | 2871 | 2871 | 1 | 1 | 0.03% | 0.03% |  |
B | 2871 | 2871 | 5 | 5 | 0.17% | 0.17% |  |
C | 2871 | 2871 | 56 | 56 | 1.95% | 1.95% |  |
D | 2871 | 2871 | 64 | 64 | 2.23% | 2.23% |  |
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 | 263800 | 3590.87 | 357 | 352 | 73.4 |
A | 13 | 254 | 4673 | 58.9 | 357 | 352 | 73.4 |
A | 3 | 137 | 3840 | 47.54 | 357 | 352 | 73.4 |
B | 0 | 245 | 45724 | 665.3 | 350 | 343 | 68.2 |
B | 5 | 255 | 30988 | 449.26 | 350 | 343 | 68.2 |
B | 0 | 190 | 28389 | 411.16 | 350 | 343 | 68.2 |
C | 9 | 54 | 276768 | 3529.56 | 338 | 341 | 78.3 |
C | 15 | 214 | 123731 | 1575.5 | 338 | 341 | 78.3 |
C | 0 | 10 | 111695 | 1421.82 | 338 | 341 | 78.3 |
D | 2 | 249 | 236447 | 2800.11 | 343 | 334 | 84.3 |
D | 2 | 16 | 116000 | 1371.7 | 343 | 334 | 84.3 |
D | 13 | 249 | 38480 | 452.38 | 343 | 334 | 84.3 |
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 |  |