Observation information
- date-obs: 2020-06-07
- time-obs: 22:00:30.328000000
- date-end: 2020-06-09
- time-end: 15:36:04.143400000
- obs_id: A09_057T04_9000003712
- exposure: 74737.5989547
- sourceid: NGC 7531
- observer: sreeja
- ra_pnt: 348.7021
- dec_pnt: -43.59995
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_057T04_9000003712cztM0_level2_bc.evt
| modeM0/AS1A09_057T04_9000003712cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,906,269,440 | 1,671,396,480 |
Size | 5.5 GB
| 1.6 GB
|
Events in quadrant A | 39,900,273 | 10,813,568 |
Events in quadrant B | 30,222,434 | 10,927,162 |
Events in quadrant C | 27,839,183 | 10,413,395 |
Events in quadrant D | 72,282,975 | 9,774,034 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 227 | 0 |
B | 0 | 227 | 0 |
C | 0 | 227 | 0 |
D | 0 | 227 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 303333 | 0 |
B | 0 | 273132 | 0 |
C | 0 | 269801 | 0 |
D | 0 | 425597 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2586 | 0 |
B | 0 | 2586 | 0 |
C | 0 | 2586 | 0 |
D | 0 | 2586 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 126920 | 3057 | 2.408604% |
B | 126920 | 1740 | 1.370942% |
C | 126919 | 2067 | 1.628598% |
D | 126920 | 12711 | 10.014970% |
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 | 149735 | 126911 | 1068 | 1068 | 0.71% | 0.84% |  |
B | 149735 | 126904 | 29 | 29 | 0.02% | 0.02% |  |
C | 149735 | 126905 | 0 | 0 | 0.00% | 0.00% |  |
D | 149735 | 126898 | 3701 | 3701 | 2.47% | 2.92% |  |
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 | 6 | 16 | 11551694 | 7502.16 | 7214 | 7094 | 1538.8 |
A | 15 | 173 | 487168 | 311.97 | 7214 | 7094 | 1538.8 |
A | 13 | 254 | 168525 | 104.9 | 7214 | 7094 | 1538.8 |
B | 3 | 112 | 1215644 | 912.84 | 7195 | 7043 | 1324.0 |
B | 0 | 190 | 490154 | 364.89 | 7195 | 7043 | 1324.0 |
B | 0 | 229 | 379711 | 281.47 | 7195 | 7043 | 1324.0 |
C | 7 | 87 | 617578 | 375.88 | 6903 | 6893 | 1624.7 |
C | 9 | 54 | 225268 | 134.41 | 6903 | 6893 | 1624.7 |
C | 7 | 247 | 218237 | 130.08 | 6903 | 6893 | 1624.7 |
D | 1 | 52 | 23843547 | 15157.26 | 6808 | 6596 | 1572.6 |
D | 8 | 195 | 9958457 | 6328.11 | 6808 | 6596 | 1572.6 |
D | 7 | 238 | 7773014 | 4938.45 | 6808 | 6596 | 1572.6 |
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 |  |