Observation information
- date-obs: 2018-01-17
- time-obs: 13:05:24.259300000
- date-end: 2018-01-17
- time-end: 16:23:16.269400000
- obs_id: A04_174T01_9000001850
- exposure: 6750.21485725
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_174T01_9000001850_12470cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12470cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,361,419,200 | 140,621,760 |
Size | 1.3 GB
| 134.1 MB
|
Events in quadrant A | 21,962,326 | 649,543 |
Events in quadrant B | 6,003,490 | 982,729 |
Events in quadrant C | 4,886,203 | 984,438 |
Events in quadrant D | 7,661,425 | 902,424 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 72588 | 1 |
B | 0 | 24588 | 1 |
C | 0 | 21584 | 1 |
D | 0 | 30005 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 218 | 0 |
B | 0 | 218 | 0 |
C | 0 | 218 | 0 |
D | 0 | 218 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 10637 | 7844 | 73.742597% |
B | 10637 | 241 | 2.265676% |
C | 10637 | 70 | 0.658080% |
D | 10637 | 530 | 4.982608% |
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 | 11202 | 10637 | 6316 | 6316 | 56.38% | 59.38% |  |
B | 11202 | 10637 | 71 | 71 | 0.63% | 0.67% |  |
C | 11202 | 10638 | 1 | 1 | 0.01% | 0.01% |  |
D | 11202 | 10637 | 404 | 404 | 3.61% | 3.80% |  |
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 | 13 | 251 | 13609440 | 68624.21 | 959 | 939 | 198.3 |
A | 0 | 23 | 4028453 | 20309.73 | 959 | 939 | 198.3 |
A | 0 | 226 | 306697 | 1541.86 | 959 | 939 | 198.3 |
B | 4 | 239 | 497800 | 2052.96 | 1272 | 1241 | 241.9 |
B | 11 | 51 | 93051 | 379.57 | 1272 | 1241 | 241.9 |
B | 3 | 64 | 89817 | 366.2 | 1272 | 1241 | 241.9 |
C | 8 | 128 | 10345 | 31.41 | 1247 | 1259 | 289.3 |
C | 13 | 61 | 9190 | 27.42 | 1247 | 1259 | 289.3 |
C | 8 | 112 | 6238 | 17.21 | 1247 | 1259 | 289.3 |
D | 1 | 52 | 2773718 | 9500.68 | 1209 | 1176 | 291.8 |
D | 7 | 71 | 73364 | 247.37 | 1209 | 1176 | 291.8 |
D | 8 | 195 | 57372 | 192.57 | 1209 | 1176 | 291.8 |
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 |  |