Observation information
- date-obs: 2022-08-27
- time-obs: 13:01:59.574800000
- date-end: 2022-08-27
- time-end: 13:55:02.577400000
- obs_id: T05_048T01_9000005318
- exposure: 2294.77995753
- sourceid: SAX J1808-3658
- observer: an.sanna
- ra_pnt: 272.1147
- dec_pnt: -36.97897
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_048T01_9000005318_37384cztM0_level2.evt
| modeM0/AS1T05_048T01_9000005318_37384cztM0_level2_quad_clean.evt
|
Size (bytes) | 260,714,880 | 41,734,080 |
Size | 248.6 MB
| 39.8 MB
|
Events in quadrant A | 1,278,003 | 281,090 |
Events in quadrant B | 1,184,337 | 284,593 |
Events in quadrant C | 1,285,295 | 285,441 |
Events in quadrant D | 3,988,370 | 244,097 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 5314 | 1 |
B | 0 | 5062 | 1 |
C | 0 | 5311 | 4 |
D | 0 | 13472 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 46 | 0 |
B | 0 | 46 | 0 |
C | 0 | 46 | 0 |
D | 0 | 46 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 9 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 2336 | 10 | 0.428082% |
B | 2336 | 22 | 0.941781% |
C | 2334 | 31 | 1.328192% |
D | 2336 | 569 | 24.357877% |
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 | 2336 | 2336 | 8 | 8 | 0.34% | 0.34% |  |
B | 2336 | 2336 | 12 | 12 | 0.51% | 0.51% |  |
C | 2336 | 2335 | 30 | 30 | 1.28% | 1.28% |  |
D | 2336 | 2336 | 743 | 743 | 31.81% | 31.81% |  |
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 | 10 | 83 | 144271 | 2631.84 | 261 | 255 | 54.7 |
A | 13 | 248 | 61161 | 1113.03 | 261 | 255 | 54.7 |
A | 9 | 143 | 37137 | 674.0 | 261 | 255 | 54.7 |
B | 0 | 190 | 66144 | 1284.15 | 256 | 250 | 51.3 |
B | 15 | 85 | 57342 | 1112.61 | 256 | 250 | 51.3 |
B | 5 | 172 | 20588 | 396.35 | 256 | 250 | 51.3 |
C | 15 | 214 | 101625 | 1711.02 | 248 | 249 | 59.2 |
C | 14 | 254 | 95043 | 1599.93 | 248 | 249 | 59.2 |
C | 0 | 10 | 39474 | 662.04 | 248 | 249 | 59.2 |
D | 12 | 235 | 2227142 | 36915.27 | 238 | 231 | 60.3 |
D | 12 | 227 | 575714 | 9539.72 | 238 | 231 | 60.3 |
D | 10 | 199 | 77126 | 1274.68 | 238 | 231 | 60.3 |
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 |  |