Observation information
- date-obs: 2020-09-13
- time-obs: 02:09:51.501200000
- date-end: 2020-09-14
- time-end: 18:15:00.355900000
- obs_id: A09_145T01_9000003866
- exposure: 72426.0315446
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_145T01_9000003866cztM0_level2_bc.evt
| modeM0/AS1A09_145T01_9000003866cztM0_level2_quad_clean.evt
|
Size (bytes) | 6,645,473,280 | 1,729,572,480 |
Size | 6.2 GB
| 1.6 GB
|
Events in quadrant A | 43,296,866 | 11,441,639 |
Events in quadrant B | 44,234,931 | 11,381,220 |
Events in quadrant C | 26,645,091 | 11,139,536 |
Events in quadrant D | 78,926,775 | 10,196,520 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 187 | 0 |
B | 0 | 187 | 0 |
C | 0 | 187 | 0 |
D | 0 | 187 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 310835 | 0 |
B | 0 | 318729 | 0 |
C | 0 | 254292 | 0 |
D | 0 | 456782 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2448 | 0 |
B | 0 | 2448 | 0 |
C | 0 | 2448 | 0 |
D | 0 | 2448 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 120035 | 2708 | 2.256009% |
B | 120035 | 8633 | 7.192069% |
C | 120036 | 2332 | 1.942751% |
D | 120036 | 20347 | 16.950748% |
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 | 144310 | 120041 | 61 | 61 | 0.04% | 0.05% |  |
B | 144310 | 120030 | 1439 | 1439 | 1.00% | 1.20% |  |
C | 144310 | 120032 | 23 | 23 | 0.02% | 0.02% |  |
D | 144310 | 120035 | 3870 | 3870 | 2.68% | 3.22% |  |
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 | 0 | 13 | 16042087 | 10421.68 | 6965 | 6854 | 1538.6 |
A | 13 | 254 | 183448 | 114.77 | 6965 | 6854 | 1538.6 |
A | 8 | 255 | 165824 | 103.32 | 6965 | 6854 | 1538.6 |
B | 0 | 189 | 9951202 | 7555.7 | 6841 | 6732 | 1316.2 |
B | 3 | 64 | 5580298 | 4234.73 | 6841 | 6732 | 1316.2 |
B | 10 | 246 | 1051456 | 793.77 | 6841 | 6732 | 1316.2 |
C | 15 | 208 | 494109 | 307.13 | 6707 | 6737 | 1586.8 |
C | 14 | 176 | 206565 | 125.93 | 6707 | 6737 | 1586.8 |
C | 3 | 233 | 82472 | 47.73 | 6707 | 6737 | 1586.8 |
D | 1 | 52 | 31464836 | 20960.08 | 6310 | 6155 | 1500.9 |
D | 7 | 80 | 18317597 | 12200.42 | 6310 | 6155 | 1500.9 |
D | 2 | 250 | 2147756 | 1426.89 | 6310 | 6155 | 1500.9 |
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 |  |