Observation information
- date-obs: 2020-09-18
- time-obs: 15:01:40.299300000
- date-end: 2020-09-19
- time-end: 05:43:22.287400000
- obs_id: A09_044T01_9000003888
- exposure: 24870.4432211
- sourceid: 4U 1705-44
- observer: jitheshthejus
- ra_pnt: 257.227
- dec_pnt: -44.10204
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_044T01_9000003888cztM0_level2_bc.evt
| modeM0/AS1A09_044T01_9000003888cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,443,993,920 | 560,491,200 |
Size | 2.3 GB
| 534.5 MB
|
Events in quadrant A | 12,151,197 | 3,642,108 |
Events in quadrant B | 22,348,392 | 3,395,138 |
Events in quadrant C | 9,712,637 | 3,639,485 |
Events in quadrant D | 26,836,596 | 3,302,181 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 890 | 0 |
B | 0 | 890 | 0 |
C | 0 | 890 | 0 |
D | 0 | 890 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 99107 | 0 |
B | 0 | 138765 | 0 |
C | 0 | 92504 | 0 |
D | 0 | 154295 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 92 | 0 |
B | 0 | 92 | 0 |
C | 0 | 92 | 0 |
D | 0 | 92 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 43623 | 507 | 1.162231% |
B | 43623 | 5355 | 12.275634% |
C | 43623 | 557 | 1.276849% |
D | 43623 | 4371 | 10.019944% |
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 | 52903 | 43623 | 59 | 59 | 0.11% | 0.14% |  |
B | 52902 | 43617 | 1778 | 1778 | 3.36% | 4.08% |  |
C | 52903 | 43623 | 15 | 15 | 0.03% | 0.03% |  |
D | 52903 | 43622 | 1258 | 1258 | 2.38% | 2.88% |  |
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 | 0 | 13 | 2297303 | 4314.68 | 2500 | 2469 | 531.9 |
A | 5 | 168 | 139407 | 257.47 | 2500 | 2469 | 531.9 |
A | 13 | 254 | 66297 | 120.01 | 2500 | 2469 | 531.9 |
B | 0 | 189 | 6098501 | 13579.63 | 2406 | 2359 | 448.9 |
B | 3 | 64 | 3664668 | 8158.08 | 2406 | 2359 | 448.9 |
B | 10 | 245 | 2140358 | 4762.56 | 2406 | 2359 | 448.9 |
C | 0 | 207 | 181623 | 316.2 | 2445 | 2448 | 566.6 |
C | 15 | 208 | 74544 | 127.23 | 2445 | 2448 | 566.6 |
C | 3 | 233 | 34983 | 57.42 | 2445 | 2448 | 566.6 |
D | 1 | 52 | 9498889 | 17690.87 | 2345 | 2293 | 536.8 |
D | 7 | 80 | 4550567 | 8472.82 | 2345 | 2293 | 536.8 |
D | 12 | 233 | 1269091 | 2359.87 | 2345 | 2293 | 536.8 |
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 |  |