Observation information
- date-obs: 2019-05-17
- time-obs: 11:24:05.247100000
- date-end: 2019-05-17
- time-end: 11:59:46.246800000
- obs_id: A06_003T02_9000002926
- exposure: 925.745375872
- sourceid: NGC 4395
- observer: hutchingsj
- ra_pnt: 186.4536
- dec_pnt: 33.54693
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A06_003T02_9000002926_19646cztM0_level2.evt
| modeM0/AS1A06_003T02_9000002926_19646cztM0_level2_quad_clean.evt
|
| Size (bytes) | 169,968,960 | 19,788,480 |
| Size | 162.1 MB
| 18.9 MB
|
| Events in quadrant A | 1,121,871 | 113,996 |
| Events in quadrant B | 1,178,863 | 116,716 |
| Events in quadrant C | 1,115,575 | 108,781 |
| Events in quadrant D | 1,585,088 | 106,020 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 42 | 0 |
| B | 0 | 42 | 0 |
| C | 0 | 42 | 0 |
| D | 0 | 42 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4692 | 1 |
| B | 0 | 4875 | 1 |
| C | 0 | 4668 | 1 |
| D | 0 | 6134 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2112 | 249 | 11.789773% |
| B | 2112 | 250 | 11.837121% |
| C | 2112 | 252 | 11.931818% |
| D | 2111 | 280 | 13.263856% |
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 | 2142 | 2113 | 0 | 0 | 0.00% | 0.00% |  |
| B | 2142 | 2113 | 1 | 1 | 0.05% | 0.05% |  |
| C | 2142 | 2113 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2141 | 2112 | 32 | 32 | 1.49% | 1.52% |  |
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 | 4 | 2 | 5447 | 84.72 | 289 | 282 | 61.0 |
| A | 5 | 16 | 3337 | 50.11 | 289 | 282 | 61.0 |
| A | 3 | 137 | 2597 | 37.97 | 289 | 282 | 61.0 |
| B | 3 | 112 | 52460 | 908.68 | 282 | 274 | 57.4 |
| B | 7 | 220 | 14117 | 241.04 | 282 | 274 | 57.4 |
| B | 12 | 111 | 7019 | 117.45 | 282 | 274 | 57.4 |
| C | 14 | 238 | 42193 | 627.8 | 273 | 272 | 66.8 |
| C | 8 | 128 | 4092 | 57.21 | 273 | 272 | 66.8 |
| C | 13 | 61 | 2028 | 26.3 | 273 | 272 | 66.8 |
| D | 1 | 52 | 523457 | 7393.55 | 280 | 270 | 70.8 |
| D | 1 | 20 | 9422 | 129.33 | 280 | 270 | 70.8 |
| D | 2 | 234 | 6900 | 93.69 | 280 | 270 | 70.8 |
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 |  |