Observation information
- date-obs: 2020-01-06
- time-obs: 13:55:06.437900000
- date-end: 2020-01-07
- time-end: 15:13:11.430100000
- obs_id: A08_008T01_9000003414
- exposure: 76041.5919704
- sourceid: LMC X-1
- observer: vivek
- ra_pnt: 84.91179
- dec_pnt: -69.7432
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A08_008T01_9000003414cztM0_level2_bc.evt
| modeM0/AS1A08_008T01_9000003414cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,805,574,400 | 1,472,898,240 |
Size | 3.5 GB
| 1.4 GB
|
Events in quadrant A | 47,159,132 | 9,519,664 |
Events in quadrant B | 17,508,990 | 10,460,910 |
Events in quadrant C | 20,391,084 | 9,778,034 |
Events in quadrant D | 24,890,980 | 9,511,357 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 253922 | 0 |
B | 0 | 165880 | 0 |
C | 0 | 176299 | 0 |
D | 0 | 192240 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1592 | 0 |
B | 0 | 1592 | 0 |
C | 0 | 1592 | 0 |
D | 0 | 1592 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 77906 | 11065 | 14.203014% |
B | 77906 | 1441 | 1.849665% |
C | 77906 | 2560 | 3.286011% |
D | 77906 | 3091 | 3.967602% |
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 | 91086 | 77899 | 6586 | 6586 | 7.23% | 8.45% |  |
B | 91086 | 77900 | 21 | 21 | 0.02% | 0.03% |  |
C | 91085 | 77901 | 531 | 531 | 0.58% | 0.68% |  |
D | 91086 | 77902 | 407 | 407 | 0.45% | 0.52% |  |
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 | 6 | 16 | 32153458 | 37810.71 | 3877 | 3810 | 850.3 |
A | 13 | 254 | 113386 | 128.87 | 3877 | 3810 | 850.3 |
A | 4 | 2 | 42099 | 45.03 | 3877 | 3810 | 850.3 |
B | 0 | 190 | 462876 | 586.39 | 4177 | 4082 | 782.4 |
B | 0 | 189 | 403836 | 510.93 | 4177 | 4082 | 782.4 |
B | 0 | 228 | 152177 | 189.28 | 4177 | 4082 | 782.4 |
C | 8 | 208 | 2858673 | 3070.06 | 3918 | 3900 | 929.9 |
C | 9 | 15 | 705929 | 754.97 | 3918 | 3900 | 929.9 |
C | 0 | 207 | 697927 | 746.37 | 3918 | 3900 | 929.9 |
D | 12 | 233 | 3001406 | 3216.64 | 3975 | 3844 | 931.9 |
D | 1 | 52 | 2810444 | 3011.72 | 3975 | 3844 | 931.9 |
D | 7 | 38 | 1012499 | 1082.37 | 3975 | 3844 | 931.9 |
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 |  |