Observation information
- date-obs: 2015-11-14
- time-obs: 16-29-10.000008124
- date-end: 2015-11-15
- time-end: 04-03-08.000007924
- obs_id: P01_141T01_9000000104
- exposure: 21652.9024102
- sourceid: Crab
- observer: santoshv
- ra_pnt: 83.62586
- dec_pnt: 22.02464
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_141T01_9000000104cztM0_level2_bc.evt
| modeM0/AS1P01_141T01_9000000104cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,449,429,120 | 397,808,640 |
Size | 1.3 GB
| 379.4 MB
|
Events in quadrant A | 6,984,304 | 2,461,177 |
Events in quadrant B | 10,221,506 | 2,496,698 |
Events in quadrant C | 13,537,592 | 2,434,939 |
Events in quadrant D | 10,846,277 | 2,330,311 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 77 | 0 |
B | 0 | 77 | 0 |
C | 0 | 77 | 0 |
D | 0 | 77 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 694 | 0 |
B | 0 | 694 | 0 |
C | 0 | 694 | 0 |
D | 0 | 694 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 145214 | 0 |
B | 0 | 157750 | 0 |
C | 0 | 159354 | 0 |
D | 0 | 145668 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 33849 | 277 | 0.818340% |
B | 33849 | 245 | 0.723803% |
C | 33849 | 106 | 0.313155% |
D | 33848 | 416 | 1.229024% |
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 | 41639 | 33849 | 10 | 10 | 0.02% | 0.03% |  |
B | 41639 | 33849 | 20 | 20 | 0.05% | 0.06% |  |
C | 41639 | 33849 | 1 | 1 | 0.00% | 0.00% |  |
D | 41639 | 33849 | 80 | 80 | 0.19% | 0.24% |  |
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 | 15 | 171 | 722313 | 2160.0 | 1605 | 1576 | 333.7 |
A | 13 | 8 | 24038 | 67.32 | 1605 | 1576 | 333.7 |
A | 15 | 69 | 22738 | 63.42 | 1605 | 1576 | 333.7 |
B | 5 | 247 | 2630050 | 9057.99 | 1650 | 1610 | 290.2 |
B | 5 | 191 | 438924 | 1507.05 | 1650 | 1610 | 290.2 |
B | 7 | 221 | 173212 | 591.37 | 1650 | 1610 | 290.2 |
C | 3 | 31 | 1578828 | 4787.51 | 1581 | 1565 | 329.5 |
C | 3 | 15 | 1311890 | 3977.27 | 1581 | 1565 | 329.5 |
C | 3 | 95 | 1297128 | 3932.46 | 1581 | 1565 | 329.5 |
D | 0 | 25 | 1663890 | 4909.09 | 1555 | 1512 | 338.6 |
D | 6 | 226 | 1256574 | 3706.26 | 1555 | 1512 | 338.6 |
D | 1 | 4 | 487314 | 1434.6 | 1555 | 1512 | 338.6 |
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 |  |