Observation information
- date-obs: 2017-07-12
- time-obs: 12:21:15.629000000
- date-end: 2017-07-13
- time-end: 12:30:47.652000000
- obs_id: A02_198T01_9000001376
- exposure: 48942.4540216
- sourceid: 4U 1538-52
- observer: varun
- ra_pnt: 235.5973
- dec_pnt: -52.386
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_198T01_9000001376cztM0_level2.evt
| modeM0/AS1A02_198T01_9000001376cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,199,082,560 | 982,238,400 |
Size | 4.8 GB
| 936.7 MB
|
Events in quadrant A | 37,156,796 | 6,215,918 |
Events in quadrant B | 36,593,243 | 6,235,562 |
Events in quadrant C | 33,933,658 | 6,227,236 |
Events in quadrant D | 44,756,195 | 5,976,501 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1512 | 0 |
B | 0 | 1520 | 0 |
C | 0 | 1512 | 0 |
D | 0 | 1512 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158047 | 0 |
B | 0 | 156969 | 0 |
C | 0 | 152573 | 0 |
D | 0 | 183813 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 121 | 0 |
B | 0 | 120 | 0 |
C | 0 | 120 | 0 |
D | 0 | 121 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 74347 | 981 | 1.319488% |
B | 74331 | 913 | 1.228290% |
C | 74313 | 557 | 0.749532% |
D | 74292 | 2497 | 3.361062% |
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 | 86973 | 74784 | 160 | 160 | 0.18% | 0.21% |  |
B | 86973 | 74790 | 44 | 44 | 0.05% | 0.06% |  |
C | 86973 | 74777 | 25 | 25 | 0.03% | 0.03% |  |
D | 86973 | 74774 | 1990 | 1990 | 2.29% | 2.66% |  |
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 | 15 | 1237371 | 695.04 | 8844 | 8670 | 1767.8 |
A | 1 | 162 | 603415 | 336.43 | 8844 | 8670 | 1767.8 |
A | 15 | 174 | 585039 | 326.03 | 8844 | 8670 | 1767.8 |
B | 0 | 214 | 700244 | 421.33 | 8862 | 8673 | 1641.4 |
B | 0 | 219 | 319350 | 189.27 | 8862 | 8673 | 1641.4 |
B | 4 | 173 | 238306 | 139.9 | 8862 | 8673 | 1641.4 |
C | 9 | 68 | 202128 | 98.42 | 8602 | 8627 | 1966.0 |
C | 14 | 234 | 127948 | 60.69 | 8602 | 8627 | 1966.0 |
C | 13 | 61 | 64469 | 28.4 | 8602 | 8627 | 1966.0 |
D | 1 | 52 | 6285498 | 3043.6 | 8510 | 8294 | 2062.4 |
D | 8 | 195 | 2696395 | 1303.37 | 8510 | 8294 | 2062.4 |
D | 12 | 233 | 1590816 | 767.31 | 8510 | 8294 | 2062.4 |
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 |  |