Observation information
- date-obs: 2017-08-12
- time-obs: 12:44:55.304200000
- date-end: 2017-08-12
- time-end: 13:34:55.304100000
- obs_id: A03_079T02_9000001458
- exposure: 995.915851086
- 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_10131cztM0_level2.evt
| modeM0/AS1A03_079T02_9000001458_10131cztM0_level2_quad_clean.evt
|
| Size (bytes) | 182,617,920 | 24,338,880 |
| Size | 174.2 MB
| 23.2 MB
|
| Events in quadrant A | 1,234,548 | 148,412 |
| Events in quadrant B | 1,331,891 | 146,971 |
| Events in quadrant C | 1,165,160 | 140,255 |
| Events in quadrant D | 1,638,383 | 133,003 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 52 | 4 |
| B | 0 | 52 | 4 |
| C | 0 | 52 | 2 |
| D | 0 | 52 | 6 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5497 | 368 |
| B | 0 | 5944 | 459 |
| C | 0 | 5252 | 388 |
| D | 0 | 7106 | 601 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2338 | 21 | 0.898204% |
| B | 2324 | 27 | 1.161790% |
| C | 2327 | 11 | 0.472712% |
| D | 2298 | 69 | 3.002611% |
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 | 2501 | 2474 | 3 | 3 | 0.12% | 0.12% |  |
| B | 2502 | 2484 | 5 | 5 | 0.20% | 0.20% |  |
| C | 2502 | 2482 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2502 | 2471 | 52 | 52 | 2.08% | 2.10% |  |
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 | 15296 | 232.94 | 313 | 308 | 64.3 |
| A | 13 | 248 | 6451 | 95.47 | 313 | 308 | 64.3 |
| A | 8 | 5 | 5232 | 76.53 | 313 | 308 | 64.3 |
| B | 0 | 214 | 63788 | 1097.69 | 307 | 301 | 57.8 |
| B | 0 | 219 | 31597 | 541.11 | 307 | 301 | 57.8 |
| B | 4 | 81 | 13565 | 229.33 | 307 | 301 | 57.8 |
| C | 13 | 61 | 2280 | 28.86 | 298 | 300 | 68.6 |
| C | 14 | 234 | 1549 | 18.21 | 298 | 300 | 68.6 |
| C | 8 | 222 | 1257 | 13.95 | 298 | 300 | 68.6 |
| D | 8 | 195 | 175204 | 2477.27 | 294 | 287 | 70.6 |
| D | 4 | 95 | 156837 | 2217.15 | 294 | 287 | 70.6 |
| D | 7 | 71 | 87756 | 1238.78 | 294 | 287 | 70.6 |
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 |  |