Observation information
- date-obs: 2015-10-12
- time-obs: 15:13:30.651600000
- date-end: 2015-10-13
- time-end: 03:50:48.654800000
- obs_id: P01_118T02_9000000022
- exposure: 16664.7565862
- sourceid: Crab3
- observer: ramadevi
- ra_pnt: 350.1683
- dec_pnt: 8.6006
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_118T02_9000000022cztM0_level2_bc.evt
| modeM0/AS1P01_118T02_9000000022cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,147,008,960 | 285,163,200 |
Size | 1.1 GB
| 272.0 MB
|
Events in quadrant A | 7,750,780 | 1,618,630 |
Events in quadrant B | 6,986,256 | 1,628,681 |
Events in quadrant C | 7,116,607 | 1,595,128 |
Events in quadrant D | 10,659,810 | 1,555,104 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140633 | 0 |
B | 0 | 137841 | 0 |
C | 0 | 133150 | 0 |
D | 0 | 135632 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 664 | 0 |
B | 0 | 664 | 0 |
C | 0 | 664 | 0 |
D | 0 | 662 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 120 | 0 |
B | 0 | 120 | 0 |
C | 0 | 120 | 0 |
D | 0 | 120 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 32584 | 185 | 0.567763% |
B | 32582 | 17 | 0.052176% |
C | 32586 | 386 | 1.184558% |
D | 32590 | 206 | 0.632096% |
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 | 45439 | 32596 | 52 | 52 | 0.11% | 0.16% |  |
B | 45439 | 32589 | 1 | 1 | 0.00% | 0.00% |  |
C | 45439 | 32595 | 77 | 77 | 0.17% | 0.24% |  |
D | 45439 | 32601 | 82 | 82 | 0.18% | 0.25% |  |
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 | 127 | 699422 | 2407.32 | 1372 | 1336 | 290.0 |
A | 5 | 244 | 691170 | 2378.87 | 1372 | 1336 | 290.0 |
A | 0 | 96 | 470141 | 1616.66 | 1372 | 1336 | 290.0 |
B | 5 | 46 | 1146856 | 4545.05 | 1409 | 1362 | 252.0 |
B | 7 | 251 | 83494 | 325.88 | 1409 | 1362 | 252.0 |
B | 15 | 219 | 46841 | 180.45 | 1409 | 1362 | 252.0 |
C | 3 | 159 | 1365728 | 4834.83 | 1346 | 1317 | 282.2 |
C | 1 | 1 | 174840 | 614.88 | 1346 | 1317 | 282.2 |
C | 9 | 241 | 70319 | 244.51 | 1346 | 1317 | 282.2 |
D | 1 | 4 | 4215096 | 13910.76 | 1352 | 1307 | 302.9 |
D | 13 | 117 | 132890 | 434.39 | 1352 | 1307 | 302.9 |
D | 9 | 7 | 105681 | 344.56 | 1352 | 1307 | 302.9 |
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 |  |