Observation information
- date-obs: 2017-07-29
- time-obs: 15:31:29.010100000
- date-end: 2017-07-30
- time-end: 04:47:38.025000000
- obs_id: A02_029T01_9000001416
- exposure: 20027.4206432
- sourceid: 4U 1724-30
- observer: sudip
- ra_pnt: 261.8885
- dec_pnt: -30.80206
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_029T01_9000001416cztM0_level2.evt
| modeM0/AS1A02_029T01_9000001416cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,944,491,840 | 440,608,320 |
Size | 2.7 GB
| 420.2 MB
|
Events in quadrant A | 20,924,653 | 2,750,330 |
Events in quadrant B | 19,316,702 | 2,809,061 |
Events in quadrant C | 17,454,547 | 2,756,073 |
Events in quadrant D | 28,924,390 | 2,427,950 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 87636 | 0 |
B | 0 | 82387 | 0 |
C | 0 | 77999 | 0 |
D | 0 | 111287 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 772 | 0 |
B | 0 | 776 | 0 |
C | 0 | 772 | 0 |
D | 0 | 770 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 91 | 0 |
B | 0 | 91 | 0 |
C | 0 | 89 | 0 |
D | 0 | 91 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 37881 | 600 | 1.583907% |
B | 37918 | 466 | 1.228968% |
C | 37902 | 221 | 0.583083% |
D | 37763 | 2527 | 6.691735% |
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 | 47769 | 38539 | 117 | 117 | 0.24% | 0.30% |  |
B | 47769 | 38542 | 29 | 29 | 0.06% | 0.08% |  |
C | 47769 | 38541 | 4 | 4 | 0.01% | 0.01% |  |
D | 47769 | 38461 | 2321 | 2321 | 4.86% | 6.03% |  |
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 | 15 | 239 | 3068161 | 3349.67 | 4565 | 4475 | 914.6 |
A | 14 | 111 | 153841 | 163.31 | 4565 | 4475 | 914.6 |
A | 8 | 15 | 99733 | 104.15 | 4565 | 4475 | 914.6 |
B | 4 | 81 | 275130 | 308.37 | 4634 | 4526 | 877.5 |
B | 0 | 214 | 219327 | 244.78 | 4634 | 4526 | 877.5 |
B | 4 | 239 | 211874 | 236.29 | 4634 | 4526 | 877.5 |
C | 12 | 4 | 43015 | 37.4 | 4455 | 4476 | 1030.6 |
C | 13 | 61 | 34030 | 28.68 | 4455 | 4476 | 1030.6 |
C | 14 | 67 | 20376 | 15.43 | 4455 | 4476 | 1030.6 |
D | 2 | 16 | 3954362 | 3706.04 | 4239 | 4138 | 1065.9 |
D | 8 | 195 | 2636124 | 2469.29 | 4239 | 4138 | 1065.9 |
D | 1 | 52 | 2169593 | 2031.6 | 4239 | 4138 | 1065.9 |
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 |  |