Observation information
- date-obs: 2018-02-23
- time-obs: 14:21:20.639700000
- date-end: 2018-02-25
- time-end: 16:54:49.619800000
- obs_id: A04_216T01_9000001916
- exposure: 103007.358988
- sourceid: Cen X-3
- observer: shivangi
- ra_pnt: 170.3158
- dec_pnt: -60.62297
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_216T01_9000001916cztM0_level2_bc.evt
| modeM0/AS1A04_216T01_9000001916cztM0_level2_quad_clean.evt
|
Size (bytes) | 6,594,641,280 | 2,057,685,120 |
Size | 6.1 GB
| 1.9 GB
|
Events in quadrant A | 38,951,603 | 13,482,301 |
Events in quadrant B | 63,719,289 | 11,606,082 |
Events in quadrant C | 31,456,765 | 13,606,675 |
Events in quadrant D | 54,791,435 | 12,764,254 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 236 | 0 |
B | 0 | 236 | 0 |
C | 0 | 236 | 0 |
D | 0 | 236 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3228 | 0 |
B | 0 | 3228 | 0 |
C | 0 | 3228 | 0 |
D | 0 | 3228 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 346507 | 0 |
B | 0 | 506227 | 0 |
C | 0 | 324244 | 0 |
D | 0 | 401349 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 158489 | 2723 | 1.718100% |
B | 158489 | 30412 | 19.188713% |
C | 158489 | 1428 | 0.901009% |
D | 158489 | 6443 | 4.065266% |
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 | 182010 | 158490 | 68 | 68 | 0.04% | 0.04% |  |
B | 182010 | 157838 | 2205 | 2205 | 1.21% | 1.40% |  |
C | 182010 | 158490 | 2 | 2 | 0.00% | 0.00% |  |
D | 182010 | 158475 | 1344 | 1344 | 0.74% | 0.85% |  |
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 | 12 | 189 | 2784218 | 1594.18 | 7984 | 7829 | 1741.6 |
A | 8 | 15 | 2689263 | 1539.66 | 7984 | 7829 | 1741.6 |
A | 15 | 223 | 1048594 | 597.6 | 7984 | 7829 | 1741.6 |
B | 4 | 239 | 27187657 | 20244.62 | 7104 | 6916 | 1342.6 |
B | 3 | 64 | 3719719 | 2765.35 | 7104 | 6916 | 1342.6 |
B | 0 | 85 | 2694431 | 2001.7 | 7104 | 6916 | 1342.6 |
C | 14 | 234 | 143463 | 77.31 | 7965 | 7867 | 1753.9 |
C | 12 | 4 | 66931 | 33.68 | 7965 | 7867 | 1753.9 |
C | 8 | 222 | 57802 | 28.47 | 7965 | 7867 | 1753.9 |
D | 1 | 52 | 18639821 | 10130.85 | 7814 | 7534 | 1839.2 |
D | 8 | 195 | 4071272 | 2209.56 | 7814 | 7534 | 1839.2 |
D | 14 | 34 | 1300165 | 702.84 | 7814 | 7534 | 1839.2 |
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 |  |