Observation information
- date-obs: 2017-12-07
- time-obs: 13:43:53.927300000
- date-end: 2017-12-07
- time-end: 14:57:55.928900000
- obs_id: G08_048T01_9000001752
- exposure: 2170.5305806
- sourceid: NGC 1291
- observer: swarna
- ra_pnt: 49.3275
- dec_pnt: -41.10807
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_048T01_9000001752_11862cztM0_level2.evt
| modeM0/AS1G08_048T01_9000001752_11862cztM0_level2_quad_clean.evt
|
| Size (bytes) | 263,401,920 | 43,107,840 |
| Size | 251.2 MB
| 41.1 MB
|
| Events in quadrant A | 1,927,866 | 263,380 |
| Events in quadrant B | 2,088,777 | 265,275 |
| Events in quadrant C | 1,753,990 | 260,455 |
| Events in quadrant D | 1,950,816 | 251,353 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8054 | 2 |
| B | 0 | 8472 | 1 |
| C | 0 | 7646 | 1 |
| D | 0 | 8120 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 76 | 0 |
| B | 0 | 76 | 0 |
| C | 0 | 76 | 0 |
| D | 0 | 76 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3742 | 67 | 1.790486% |
| B | 3742 | 91 | 2.431855% |
| C | 3742 | 31 | 0.828434% |
| D | 3742 | 46 | 1.229289% |
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 | 4443 | 3744 | 1 | 1 | 0.02% | 0.03% |  |
| B | 4443 | 3744 | 13 | 13 | 0.29% | 0.35% |  |
| C | 4443 | 3744 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4443 | 3744 | 7 | 7 | 0.16% | 0.19% |  |
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 | 1 | 162 | 59509 | 619.13 | 461 | 451 | 95.4 |
| A | 1 | 178 | 30164 | 311.5 | 461 | 451 | 95.4 |
| A | 1 | 161 | 26116 | 269.06 | 461 | 451 | 95.4 |
| B | 4 | 239 | 200713 | 2207.47 | 460 | 449 | 90.7 |
| B | 15 | 204 | 36173 | 393.78 | 460 | 449 | 90.7 |
| B | 0 | 214 | 30657 | 332.98 | 460 | 449 | 90.7 |
| C | 13 | 61 | 3361 | 27.63 | 449 | 451 | 105.3 |
| C | 3 | 202 | 1146 | 6.6 | 449 | 451 | 105.3 |
| C | 7 | 247 | 1018 | 5.38 | 449 | 451 | 105.3 |
| D | 8 | 195 | 159923 | 1470.95 | 446 | 434 | 108.4 |
| D | 1 | 52 | 41340 | 377.27 | 446 | 434 | 108.4 |
| D | 7 | 71 | 27290 | 247.69 | 446 | 434 | 108.4 |
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 |  |