Observation information
- date-obs: 2018-03-08
- time-obs: 19:46:35.656500000
- date-end: 2018-03-08
- time-end: 22:04:48.658800000
- obs_id: A04_216T01_9000001968
- exposure: 4549.01793843
- 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_9000001968_13214cztM0_level2.evt
| modeM0/AS1A04_216T01_9000001968_13214cztM0_level2_quad_clean.evt
|
| Size (bytes) | 469,267,200 | 98,449,920 |
| Size | 447.5 MB
| 93.9 MB
|
| Events in quadrant A | 2,939,841 | 656,100 |
| Events in quadrant B | 3,842,010 | 661,247 |
| Events in quadrant C | 2,943,630 | 654,110 |
| Events in quadrant D | 4,077,509 | 589,593 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12704 | 2 |
| B | 0 | 15341 | 1 |
| C | 0 | 12682 | 1 |
| D | 0 | 16181 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 24 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6027 | 22 | 0.365024% |
| B | 6027 | 279 | 4.629169% |
| C | 6027 | 22 | 0.365024% |
| D | 6027 | 240 | 3.982081% |
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 | 7393 | 6029 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7393 | 6029 | 174 | 174 | 2.35% | 2.89% |  |
| C | 7393 | 6029 | 13 | 13 | 0.18% | 0.22% |  |
| D | 7393 | 6029 | 194 | 194 | 2.62% | 3.22% |  |
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 | 33168 | 217.38 | 739 | 724 | 149.3 |
| A | 12 | 96 | 19548 | 126.12 | 739 | 724 | 149.3 |
| A | 1 | 162 | 18341 | 118.04 | 739 | 724 | 149.3 |
| B | 4 | 239 | 890034 | 6474.57 | 741 | 725 | 137.4 |
| B | 0 | 219 | 19277 | 135.07 | 741 | 725 | 137.4 |
| B | 0 | 214 | 17748 | 123.94 | 741 | 725 | 137.4 |
| C | 15 | 208 | 69592 | 417.38 | 722 | 729 | 165.0 |
| C | 14 | 234 | 56595 | 338.6 | 722 | 729 | 165.0 |
| C | 13 | 61 | 5323 | 27.84 | 722 | 729 | 165.0 |
| D | 1 | 52 | 788244 | 4775.25 | 693 | 675 | 164.9 |
| D | 13 | 122 | 522217 | 3162.25 | 693 | 675 | 164.9 |
| D | 8 | 195 | 71902 | 431.87 | 693 | 675 | 164.9 |
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 |  |