Observation information
- date-obs: 2017-10-05
- time-obs: 19:30:05.426000000
- date-end: 2017-10-06
- time-end: 02:13:35.419400000
- obs_id: G08_036T01_9000001584
- exposure: 13173.6774844
- sourceid: 4U 1820-30
- observer: jsyadav
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G08_036T01_9000001584cztM0_level2.evt
| modeM0/AS1G08_036T01_9000001584cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,732,060,800 | 261,823,680 |
Size | 1.6 GB
| 249.7 MB
|
Events in quadrant A | 11,529,663 | 1,630,045 |
Events in quadrant B | 14,830,006 | 1,636,521 |
Events in quadrant C | 9,637,075 | 1,651,631 |
Events in quadrant D | 14,978,408 | 1,500,898 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 450 | 0 |
B | 0 | 450 | 0 |
C | 0 | 450 | 0 |
D | 0 | 450 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 49062 | 0 |
B | 0 | 58455 | 0 |
C | 0 | 44387 | 0 |
D | 0 | 59814 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 21 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 21927 | 383 | 1.746705% |
B | 21929 | 1090 | 4.970587% |
C | 21929 | 84 | 0.383054% |
D | 21930 | 1311 | 5.978112% |
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 | 24211 | 21934 | 154 | 154 | 0.64% | 0.70% |  |
B | 24211 | 21934 | 623 | 623 | 2.57% | 2.84% |  |
C | 24211 | 21934 | 0 | 0 | 0.00% | 0.00% |  |
D | 24211 | 21933 | 917 | 917 | 3.79% | 4.18% |  |
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 | 8 | 5 | 952670 | 1824.98 | 2533 | 2472 | 520.7 |
A | 15 | 223 | 427174 | 815.7 | 2533 | 2472 | 520.7 |
A | 15 | 239 | 156966 | 296.73 | 2533 | 2472 | 520.7 |
B | 4 | 239 | 4214842 | 8813.4 | 2520 | 2456 | 478.0 |
B | 4 | 81 | 378291 | 786.34 | 2520 | 2456 | 478.0 |
B | 0 | 219 | 137941 | 283.47 | 2520 | 2456 | 478.0 |
C | 13 | 61 | 18123 | 27.47 | 2460 | 2467 | 569.9 |
C | 8 | 128 | 16267 | 24.21 | 2460 | 2467 | 569.9 |
C | 8 | 222 | 11030 | 15.02 | 2460 | 2467 | 569.9 |
D | 13 | 152 | 3474328 | 6004.45 | 2384 | 2313 | 578.2 |
D | 1 | 52 | 1387950 | 2396.3 | 2384 | 2313 | 578.2 |
D | 8 | 195 | 330664 | 567.84 | 2384 | 2313 | 578.2 |
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 |  |