Observation information
- date-obs: 2018-07-10
- time-obs: 01:01:39.270500000
- date-end: 2018-07-12
- time-end: 18:43:02.305400000
- obs_id: T02_060T01_9000002216
- exposure: 119380.985593
- sourceid: Maxi J1820+070
- observer: aarthy
- ra_pnt: 275.091
- dec_pnt: 7.185631
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T02_060T01_9000002216cztM0_level2_bc.evt
| modeM0/AS1T02_060T01_9000002216cztM0_level2_quad_clean.evt
|
Size (bytes) | 7,378,148,160 | 2,573,046,720 |
Size | 6.9 GB
| 2.4 GB
|
Events in quadrant A | 43,787,706 | 16,283,816 |
Events in quadrant B | 52,817,226 | 16,542,169 |
Events in quadrant C | 63,593,231 | 15,934,803 |
Events in quadrant D | 49,352,631 | 15,193,019 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 323 | 0 |
B | 0 | 323 | 0 |
C | 0 | 323 | 0 |
D | 0 | 323 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 432616 | 0 |
B | 0 | 457942 | 0 |
C | 0 | 500529 | 0 |
D | 0 | 456206 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4162 | 0 |
B | 0 | 4162 | 0 |
C | 0 | 4162 | 0 |
D | 0 | 4162 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 204169 | 2849 | 1.395413% |
B | 204169 | 5241 | 2.566991% |
C | 204169 | 3201 | 1.567819% |
D | 204169 | 5755 | 2.818743% |
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 | 236485 | 204152 | 5 | 5 | 0.00% | 0.00% |  |
B | 236485 | 204146 | 593 | 593 | 0.25% | 0.29% |  |
C | 236485 | 204150 | 0 | 0 | 0.00% | 0.00% |  |
D | 236485 | 204153 | 419 | 419 | 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 | 1 | 162 | 1015481 | 433.37 | 10705 | 10492 | 2319.0 |
A | 12 | 189 | 791575 | 336.82 | 10705 | 10492 | 2319.0 |
A | 15 | 239 | 557474 | 235.87 | 10705 | 10492 | 2319.0 |
B | 3 | 64 | 5044140 | 2483.04 | 10827 | 10539 | 2027.2 |
B | 10 | 16 | 3585452 | 1763.48 | 10827 | 10539 | 2027.2 |
B | 10 | 245 | 1814437 | 889.85 | 10827 | 10539 | 2027.2 |
C | 3 | 233 | 22251820 | 9754.65 | 10422 | 10290 | 2280.1 |
C | 7 | 247 | 289556 | 122.48 | 10422 | 10290 | 2280.1 |
C | 3 | 232 | 152062 | 62.18 | 10422 | 10290 | 2280.1 |
D | 7 | 223 | 4687185 | 1978.71 | 10352 | 9988 | 2363.8 |
D | 2 | 14 | 1586714 | 667.04 | 10352 | 9988 | 2363.8 |
D | 13 | 249 | 1349452 | 566.67 | 10352 | 9988 | 2363.8 |
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 |  |