Observation information
- date-obs: 2021-12-09
- time-obs: 23:42:06.106500000
- date-end: 2021-12-10
- time-end: 09:45:32.105800000
- obs_id: A11_037T01_9000004806
- exposure: 15574.6493123
- sourceid: NGC 2808
- observer: deepthisprabhu
- ra_pnt: 138.0129
- dec_pnt: -64.8625
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_037T01_9000004806cztM0_level2_bc.evt
| modeM0/AS1A11_037T01_9000004806cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,048,757,760 | 308,888,640 |
Size | 1000.2 MB
| 294.6 MB
|
Events in quadrant A | 3,756,303 | 2,072,386 |
Events in quadrant B | 7,082,834 | 2,089,298 |
Events in quadrant C | 6,539,014 | 2,066,980 |
Events in quadrant D | 13,140,316 | 1,871,094 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 76 | 0 |
B | 0 | 76 | 0 |
C | 0 | 76 | 0 |
D | 0 | 78 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 36708 | 0 |
B | 0 | 49641 | 0 |
C | 0 | 44845 | 0 |
D | 0 | 71695 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 372 | 0 |
B | 0 | 372 | 0 |
C | 0 | 372 | 0 |
D | 0 | 372 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18214 | 19 | 0.104315% |
B | 18214 | 851 | 4.672230% |
C | 18214 | 407 | 2.234545% |
D | 18214 | 2425 | 13.313934% |
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 | 34826 | 18216 | 1 | 1 | 0.00% | 0.01% |  |
B | 34825 | 18214 | 17 | 17 | 0.05% | 0.09% |  |
C | 34825 | 18213 | 46 | 46 | 0.13% | 0.25% |  |
D | 34825 | 18214 | 122 | 122 | 0.35% | 0.67% |  |
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 | 254 | 34116 | 158.49 | 949 | 934 | 209.4 |
A | 12 | 227 | 28283 | 130.63 | 949 | 934 | 209.4 |
A | 13 | 6 | 17965 | 81.35 | 949 | 934 | 209.4 |
B | 5 | 172 | 1381314 | 7304.43 | 955 | 937 | 189.0 |
B | 5 | 255 | 750950 | 3968.78 | 955 | 937 | 189.0 |
B | 4 | 170 | 343053 | 1810.35 | 955 | 937 | 189.0 |
C | 15 | 214 | 814923 | 3776.85 | 942 | 937 | 215.5 |
C | 1 | 23 | 612542 | 2837.81 | 942 | 937 | 215.5 |
C | 0 | 10 | 518486 | 2401.4 | 942 | 937 | 215.5 |
D | 8 | 195 | 4745923 | 20876.13 | 887 | 869 | 227.3 |
D | 2 | 250 | 1485877 | 6533.37 | 887 | 869 | 227.3 |
D | 2 | 120 | 1436878 | 6317.8 | 887 | 869 | 227.3 |
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 |  |