Observation information
- date-obs: 2017-02-21
- time-obs: 00:40:09.397700000
- date-end: 2017-02-21
- time-end: 05:59:11.405200000
- obs_id: A02_024T01_9000001044
- exposure: 9550.90085637
- sourceid: NGC 4388
- observer: labani
- ra_pnt: 186.4448
- dec_pnt: 12.66209
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_024T01_9000001044_07579cztM0_level2.evt
| modeM0/AS1A02_024T01_9000001044_07579cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,227,041,280 | 191,344,320 |
| Size | 1.1 GB
| 182.5 MB
|
| Events in quadrant A | 9,267,529 | 1,152,935 |
| Events in quadrant B | 7,897,869 | 1,190,792 |
| Events in quadrant C | 8,382,332 | 1,170,816 |
| Events in quadrant D | 10,479,864 | 1,123,861 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 342 | 0 |
| B | 0 | 342 | 0 |
| C | 0 | 342 | 0 |
| D | 0 | 342 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38680 | 5 |
| B | 0 | 34518 | 4 |
| C | 0 | 36381 | 4 |
| D | 0 | 42550 | 4 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 16767 | 398 | 2.373710% |
| B | 16767 | 167 | 0.996004% |
| C | 16767 | 216 | 1.288245% |
| D | 16767 | 701 | 4.180831% |
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 | 19142 | 16768 | 189 | 189 | 0.99% | 1.13% |  |
| B | 19142 | 16771 | 3 | 3 | 0.02% | 0.02% |  |
| C | 19142 | 16771 | 67 | 67 | 0.35% | 0.40% |  |
| D | 19142 | 16770 | 484 | 484 | 2.53% | 2.89% |  |
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 | 239 | 1018192 | 2547.32 | 1960 | 1918 | 399.0 |
| A | 0 | 128 | 703953 | 1759.67 | 1960 | 1918 | 399.0 |
| A | 0 | 226 | 18503 | 41.57 | 1960 | 1918 | 399.0 |
| B | 0 | 219 | 107683 | 277.47 | 1982 | 1933 | 381.1 |
| B | 0 | 214 | 65308 | 166.29 | 1982 | 1933 | 381.1 |
| B | 12 | 111 | 40715 | 101.76 | 1982 | 1933 | 381.1 |
| C | 9 | 68 | 644248 | 1449.29 | 1911 | 1917 | 443.2 |
| C | 8 | 229 | 191967 | 428.81 | 1911 | 1917 | 443.2 |
| C | 1 | 16 | 78137 | 171.98 | 1911 | 1917 | 443.2 |
| D | 2 | 152 | 1777202 | 3799.89 | 1899 | 1834 | 467.2 |
| D | 2 | 14 | 667681 | 1425.14 | 1899 | 1834 | 467.2 |
| D | 5 | 233 | 425584 | 906.97 | 1899 | 1834 | 467.2 |
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 |  |