Observation information
- date-obs: 2023-05-20
- time-obs: 01:33:24.130800000
- date-end: 2023-05-20
- time-end: 04:03:49.129400000
- obs_id: A12_025T14_9000005646
- exposure: 4579.43337798
- sourceid: NGC4477
- observer: rosolowsky
- ra_pnt: 187.5092
- dec_pnt: 13.6366
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_025T14_9000005646_41315cztM0_level2.fits
| modeM0/AS1A12_025T14_9000005646_41315cztM0_level2_quad_clean.evt
|
Size (bytes) | 330,223,680 | 87,488,640 |
Size | 314.9 MB
| 83.4 MB
|
Events in quadrant A | 2,808,116 | 601,826 |
Events in quadrant B | 2,792,946 | 625,328 |
Events in quadrant C | 3,299,561 | 546,734 |
Events in quadrant D | 2,936,787 | 527,000 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11282 | 3 |
B | 0 | 11288 | 2 |
C | 0 | 12526 | 2 |
D | 0 | 12161 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 40 | 0 |
B | 0 | 40 | 0 |
C | 0 | 40 | 0 |
D | 0 | 40 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4960 | 7 | 0.141129% |
B | 4960 | 16 | 0.322581% |
C | 4960 | 305 | 6.149194% |
D | 4960 | 90 | 1.814516% |
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 | 9025 | 4962 | 4 | 4 | 0.04% | 0.08% |  |
B | 9025 | 4962 | 6 | 6 | 0.07% | 0.12% |  |
C | 9025 | 4962 | 306 | 306 | 3.39% | 6.17% |  |
D | 9025 | 4962 | 84 | 84 | 0.93% | 1.69% |  |
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 | 481126 | 3988.84 | 589 | 578 | 120.5 |
A | 12 | 189 | 25575 | 207.49 | 589 | 578 | 120.5 |
A | 13 | 6 | 15103 | 120.57 | 589 | 578 | 120.5 |
B | 5 | 255 | 421924 | 3695.51 | 589 | 575 | 114.0 |
B | 0 | 229 | 42194 | 365.03 | 589 | 575 | 114.0 |
B | 12 | 111 | 14365 | 120.95 | 589 | 575 | 114.0 |
C | 0 | 10 | 961178 | 7486.39 | 545 | 550 | 128.3 |
C | 15 | 214 | 206801 | 1607.36 | 545 | 550 | 128.3 |
C | 15 | 159 | 5221 | 36.4 | 545 | 550 | 128.3 |
D | 2 | 249 | 267135 | 1925.77 | 562 | 548 | 138.4 |
D | 5 | 222 | 260740 | 1879.57 | 562 | 548 | 138.4 |
D | 2 | 120 | 138801 | 998.71 | 562 | 548 | 138.4 |
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 |  |