Observation information
- date-obs: 2017-01-27
- time-obs: 16:30:49.203300000
- date-end: 2017-01-28
- time-end: 01:31:59.194900000
- obs_id: A02_111T01_9000000986
- exposure: 19487.3091588
- sourceid: Cen X-3
- observer: nirmal
- ra_pnt: 170.3158
- dec_pnt: -60.623
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_111T01_9000000986cztM0_level2.evt
| modeM0/AS1A02_111T01_9000000986cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,777,498,560 | 377,542,080 |
Size | 1.7 GB
| 360.1 MB
|
Events in quadrant A | 12,518,327 | 2,448,322 |
Events in quadrant B | 12,912,692 | 2,506,932 |
Events in quadrant C | 11,782,506 | 2,437,574 |
Events in quadrant D | 14,878,595 | 2,271,812 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 526 | 0 |
B | 0 | 526 | 0 |
C | 0 | 526 | 0 |
D | 0 | 526 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 54613 | 0 |
B | 0 | 56080 | 0 |
C | 0 | 53135 | 0 |
D | 0 | 62698 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 68 | 0 |
B | 0 | 68 | 0 |
C | 0 | 68 | 0 |
D | 0 | 68 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 25756 | 181 | 0.702749% |
B | 25756 | 279 | 1.083243% |
C | 25756 | 87 | 0.337785% |
D | 25756 | 749 | 2.908060% |
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 | 32471 | 25759 | 14 | 14 | 0.04% | 0.05% |  |
B | 32471 | 25760 | 60 | 60 | 0.18% | 0.23% |  |
C | 32471 | 25759 | 4 | 4 | 0.01% | 0.02% |  |
D | 32471 | 25760 | 577 | 577 | 1.78% | 2.24% |  |
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 | 714620 | 1187.03 | 2992 | 2935 | 599.6 |
A | 14 | 111 | 176124 | 288.86 | 2992 | 2935 | 599.6 |
A | 13 | 248 | 59444 | 94.25 | 2992 | 2935 | 599.6 |
B | 4 | 81 | 358959 | 627.3 | 3038 | 2968 | 567.5 |
B | 0 | 214 | 324463 | 566.52 | 3038 | 2968 | 567.5 |
B | 10 | 16 | 234116 | 407.31 | 3038 | 2968 | 567.5 |
C | 9 | 68 | 237149 | 347.02 | 2942 | 2958 | 674.9 |
C | 13 | 61 | 22783 | 29.38 | 2942 | 2958 | 674.9 |
C | 10 | 22 | 20232 | 25.6 | 2942 | 2958 | 674.9 |
D | 2 | 216 | 2332690 | 3350.62 | 2873 | 2786 | 695.4 |
D | 2 | 14 | 591502 | 846.63 | 2873 | 2786 | 695.4 |
D | 2 | 63 | 437268 | 624.83 | 2873 | 2786 | 695.4 |
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 |  |