Observation information
- date-obs: 2018-04-25
- time-obs: 10:08:35.617200000
- date-end: 2018-04-25
- time-end: 12:09:55.059700000
- obs_id: A04_167T05_9000002052
- exposure: 4414.05946088
- sourceid: NGC 4501
- observer: joydeep
- ra_pnt: 187.9962
- dec_pnt: 14.42028
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_167T05_9000002052cztM0_level2_bc.evt
| modeM0/AS1A04_167T05_9000002052cztM0_level2_quad_clean.evt
|
Size (bytes) | 229,043,520 | 86,186,880 |
Size | 218.4 MB
| 82.2 MB
|
Events in quadrant A | 1,344,116 | 539,629 |
Events in quadrant B | 1,397,414 | 545,087 |
Events in quadrant C | 1,332,980 | 542,218 |
Events in quadrant D | 2,404,789 | 523,197 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13744 | 0 |
B | 0 | 13803 | 0 |
C | 0 | 13478 | 0 |
D | 0 | 16970 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6603 | 116 | 1.756777% |
B | 6603 | 117 | 1.771922% |
C | 6603 | 88 | 1.332728% |
D | 6603 | 147 | 2.226261% |
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 | 7263 | 6602 | 0 | 0 | 0.00% | 0.00% |  |
B | 7263 | 6602 | 0 | 0 | 0.00% | 0.00% |  |
C | 7263 | 6602 | 0 | 0 | 0.00% | 0.00% |  |
D | 7263 | 6602 | 3 | 3 | 0.04% | 0.05% |  |
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 | 9 | 143 | 75457 | 1016.58 | 322 | 313 | 73.9 |
A | 1 | 162 | 13023 | 171.95 | 322 | 313 | 73.9 |
A | 8 | 15 | 9626 | 125.99 | 322 | 313 | 73.9 |
B | 12 | 0 | 78050 | 1175.52 | 324 | 314 | 66.1 |
B | 10 | 244 | 29018 | 434.06 | 324 | 314 | 66.1 |
B | 4 | 173 | 13851 | 204.71 | 324 | 314 | 66.1 |
C | 3 | 233 | 81912 | 1089.16 | 319 | 313 | 74.9 |
C | 13 | 61 | 1862 | 20.68 | 319 | 313 | 74.9 |
C | 7 | 247 | 947 | 8.46 | 319 | 313 | 74.9 |
D | 1 | 52 | 490441 | 6296.52 | 316 | 304 | 77.8 |
D | 13 | 122 | 468721 | 6017.49 | 316 | 304 | 77.8 |
D | 8 | 195 | 38794 | 494.46 | 316 | 304 | 77.8 |
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 |  |