Observation information
- date-obs: 2017-08-12
- time-obs: 09:24:42.303900000
- date-end: 2017-08-12
- time-end: 11:32:50.304700000
- obs_id: A03_079T02_9000001458
- exposure: 4225.87571786
- sourceid: NGC 663
- observer: shruthibhat
- ra_pnt: 26.5375
- dec_pnt: 61.235
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_079T02_9000001458_10129cztM0_level2.evt
| modeM0/AS1A03_079T02_9000001458_10129cztM0_level2_quad_clean.evt
|
| Size (bytes) | 460,255,680 | 89,881,920 |
| Size | 438.9 MB
| 85.7 MB
|
| Events in quadrant A | 3,248,177 | 570,457 |
| Events in quadrant B | 3,330,618 | 575,917 |
| Events in quadrant C | 3,008,675 | 570,740 |
| Events in quadrant D | 3,907,943 | 549,560 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13921 | 3 |
| B | 0 | 13942 | 2 |
| C | 0 | 13309 | 2 |
| D | 0 | 15494 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6528 | 76 | 1.164216% |
| B | 6528 | 62 | 0.949755% |
| C | 6528 | 32 | 0.490196% |
| D | 6528 | 119 | 1.822917% |
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 | 7688 | 6528 | 19 | 19 | 0.25% | 0.29% |  |
| B | 7688 | 6528 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7688 | 6529 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7688 | 6528 | 68 | 68 | 0.88% | 1.04% |  |
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 | 174 | 81801 | 503.93 | 800 | 784 | 160.8 |
| A | 13 | 248 | 79408 | 489.05 | 800 | 784 | 160.8 |
| A | 3 | 1 | 7553 | 42.1 | 800 | 784 | 160.8 |
| B | 0 | 214 | 64113 | 418.59 | 796 | 777 | 151.3 |
| B | 0 | 219 | 56434 | 367.84 | 796 | 777 | 151.3 |
| B | 4 | 239 | 36111 | 233.52 | 796 | 777 | 151.3 |
| C | 14 | 67 | 9584 | 50.12 | 767 | 772 | 175.8 |
| C | 13 | 61 | 5850 | 28.88 | 767 | 772 | 175.8 |
| C | 3 | 254 | 3421 | 15.07 | 767 | 772 | 175.8 |
| D | 8 | 195 | 339374 | 1698.75 | 760 | 746 | 199.3 |
| D | 4 | 95 | 135136 | 674.18 | 760 | 746 | 199.3 |
| D | 2 | 136 | 112517 | 560.71 | 760 | 746 | 199.3 |
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 |  |