Observation information
- date-obs: 2018-01-24
- time-obs: 23:14:20.176100000
- date-end: 2018-01-25
- time-end: 08:32:54.166300000
- obs_id: A04_130T04_9000001872
- exposure: 16900.4310564
- sourceid: Mrk 421
- observer: Daniela
- ra_pnt: 166.1138
- dec_pnt: 38.20883
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_130T04_9000001872cztM0_level2_bc.evt
| modeM0/AS1A04_130T04_9000001872cztM0_level2_quad_clean.evt
|
Size (bytes) | 945,434,880 | 345,905,280 |
Size | 901.6 MB
| 329.9 MB
|
Events in quadrant A | 5,588,476 | 2,138,541 |
Events in quadrant B | 7,758,357 | 2,176,462 |
Events in quadrant C | 5,678,822 | 2,156,678 |
Events in quadrant D | 7,666,346 | 2,054,260 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 58905 | 0 |
B | 0 | 66947 | 0 |
C | 0 | 59278 | 0 |
D | 0 | 66168 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 31 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 570 | 0 |
B | 0 | 584 | 0 |
C | 0 | 572 | 0 |
D | 0 | 572 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 28403 | 668 | 2.351864% |
B | 28327 | 1179 | 4.162107% |
C | 28364 | 460 | 1.621774% |
D | 28385 | 991 | 3.491281% |
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 | 33515 | 28899 | 0 | 0 | 0.00% | 0.00% |  |
B | 33515 | 28810 | 44 | 44 | 0.13% | 0.15% |  |
C | 33515 | 28858 | 2 | 2 | 0.01% | 0.01% |  |
D | 33515 | 28891 | 61 | 61 | 0.18% | 0.21% |  |
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 | 12 | 189 | 93006 | 292.48 | 1411 | 1378 | 313.3 |
A | 12 | 96 | 50003 | 155.21 | 1411 | 1378 | 313.3 |
A | 12 | 194 | 9853 | 27.05 | 1411 | 1378 | 313.3 |
B | 4 | 239 | 1014599 | 3741.64 | 1421 | 1381 | 270.8 |
B | 3 | 64 | 783574 | 2888.5 | 1421 | 1381 | 270.8 |
B | 11 | 51 | 228675 | 839.36 | 1421 | 1381 | 270.8 |
C | 15 | 208 | 191179 | 619.42 | 1392 | 1369 | 306.4 |
C | 8 | 128 | 10287 | 29.1 | 1392 | 1369 | 306.4 |
C | 8 | 222 | 9964 | 28.05 | 1392 | 1369 | 306.4 |
D | 1 | 52 | 926790 | 2851.2 | 1384 | 1330 | 324.6 |
D | 10 | 157 | 816618 | 2511.77 | 1384 | 1330 | 324.6 |
D | 13 | 249 | 406066 | 1246.93 | 1384 | 1330 | 324.6 |
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 |  |