Observation information
- date-obs: 2018-07-17
- time-obs: 18:36:04.310400000
- date-end: 2018-07-19
- time-end: 01:45:47.383700000
- obs_id: A04_218T08_9000002236
- exposure: 65828.8808866
- sourceid: SWIFT J1921.1-5842
- observer: gulabd
- ra_pnt: 290.3089
- dec_pnt: -58.67037
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_218T08_9000002236cztM0_level2_bc.evt
| modeM0/AS1A04_218T08_9000002236cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,391,439,040 | 1,350,964,800 |
Size | 3.2 GB
| 1.3 GB
|
Events in quadrant A | 25,813,639 | 8,595,057 |
Events in quadrant B | 21,979,477 | 8,771,330 |
Events in quadrant C | 25,402,347 | 8,761,626 |
Events in quadrant D | 23,086,870 | 8,323,944 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 178 | 0 |
B | 0 | 178 | 0 |
C | 0 | 178 | 0 |
D | 0 | 178 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 216208 | 0 |
B | 0 | 203091 | 0 |
C | 0 | 210348 | 0 |
D | 0 | 203765 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1924 | 0 |
B | 0 | 1924 | 0 |
C | 0 | 1924 | 0 |
D | 0 | 1924 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 94399 | 1126 | 1.192809% |
B | 94399 | 1508 | 1.597475% |
C | 94399 | 845 | 0.895137% |
D | 94399 | 1107 | 1.172682% |
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 | 112185 | 94401 | 5 | 5 | 0.00% | 0.01% |  |
B | 112185 | 94395 | 82 | 82 | 0.07% | 0.09% |  |
C | 112185 | 94396 | 10 | 10 | 0.01% | 0.01% |  |
D | 112185 | 94397 | 138 | 138 | 0.12% | 0.15% |  |
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 | 239 | 6141731 | 5777.37 | 4873 | 4783 | 1062.2 |
A | 0 | 253 | 443718 | 413.22 | 4873 | 4783 | 1062.2 |
A | 12 | 189 | 358429 | 332.92 | 4873 | 4783 | 1062.2 |
B | 3 | 64 | 1468169 | 1582.62 | 4974 | 4850 | 924.6 |
B | 0 | 229 | 364815 | 389.31 | 4974 | 4850 | 924.6 |
B | 4 | 48 | 204224 | 215.63 | 4974 | 4850 | 924.6 |
C | 3 | 233 | 5959570 | 5517.88 | 4878 | 4820 | 1079.2 |
C | 9 | 236 | 127786 | 113.94 | 4878 | 4820 | 1079.2 |
C | 3 | 9 | 125074 | 111.43 | 4878 | 4820 | 1079.2 |
D | 2 | 16 | 2074256 | 1852.87 | 4850 | 4681 | 1117.0 |
D | 2 | 33 | 660511 | 587.16 | 4850 | 4681 | 1117.0 |
D | 10 | 70 | 479737 | 425.31 | 4850 | 4681 | 1117.0 |
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 |  |