Observation information
- date-obs: 2021-07-14
- time-obs: 08:59:08.621600000
- date-end: 2021-07-15
- time-end: 09:43:39.603100000
- obs_id: T04_025T01_9000004538
- exposure: 75093.4174729
- sourceid: MAXI J0911-655
- observer: dumbscholar
- ra_pnt: 138.0101
- dec_pnt: -64.86845
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T04_025T01_9000004538cztM0_level2_bc.evt
| modeM0/AS1T04_025T01_9000004538cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,541,616,640 | 1,541,283,840 |
Size | 3.3 GB
| 1.4 GB
|
Events in quadrant A | 16,708,812 | 10,728,574 |
Events in quadrant B | 40,959,809 | 10,407,514 |
Events in quadrant C | 18,781,041 | 10,143,923 |
Events in quadrant D | 25,651,565 | 10,207,750 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1542 | 0 |
B | 0 | 1542 | 0 |
C | 0 | 1542 | 0 |
D | 0 | 1542 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158467 | 0 |
B | 0 | 243931 | 0 |
C | 0 | 171197 | 0 |
D | 0 | 185399 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 135 | 0 |
B | 0 | 135 | 0 |
C | 0 | 135 | 0 |
D | 0 | 135 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 75890 | 729 | 0.960601% |
B | 75890 | 3036 | 4.000527% |
C | 75890 | 2787 | 3.672421% |
D | 75890 | 1098 | 1.446831% |
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 | 88219 | 75892 | 0 | 0 | 0.00% | 0.00% |  |
B | 88219 | 75887 | 156 | 156 | 0.18% | 0.21% |  |
C | 88220 | 75888 | 14 | 14 | 0.02% | 0.02% |  |
D | 88219 | 75890 | 71 | 71 | 0.08% | 0.09% |  |
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 | 13 | 254 | 137679 | 144.72 | 4308 | 4257 | 921.9 |
A | 5 | 16 | 42482 | 41.46 | 4308 | 4257 | 921.9 |
A | 0 | 226 | 27376 | 25.08 | 4308 | 4257 | 921.9 |
B | 6 | 159 | 20313188 | 25626.54 | 4203 | 4115 | 792.5 |
B | 4 | 80 | 2027626 | 2553.32 | 4203 | 4115 | 792.5 |
B | 5 | 172 | 519780 | 650.68 | 4203 | 4115 | 792.5 |
C | 3 | 233 | 1863949 | 1949.23 | 4051 | 4059 | 954.2 |
C | 0 | 10 | 741342 | 772.7 | 4051 | 4059 | 954.2 |
C | 14 | 254 | 215287 | 221.37 | 4051 | 4059 | 954.2 |
D | 8 | 195 | 7413853 | 7646.4 | 4243 | 4124 | 969.0 |
D | 12 | 233 | 1188929 | 1222.65 | 4243 | 4124 | 969.0 |
D | 2 | 234 | 323230 | 329.3 | 4243 | 4124 | 969.0 |
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 |  |