Observation information
- date-obs: 2017-05-14
- time-obs: 14:10:09.619200000
- date-end: 2017-05-14
- time-end: 15:00:45.048500000
- obs_id: A03_135T01_9000001226
- exposure: 1177.4750025
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_135T01_9000001226_08799cztM0_level2.evt
| modeM0/AS1A03_135T01_9000001226_08799cztM0_level2_quad_clean.evt
|
| Size (bytes) | 191,859,840 | 29,090,880 |
| Size | 183.0 MB
| 27.7 MB
|
| Events in quadrant A | 1,167,817 | 195,443 |
| Events in quadrant B | 1,025,440 | 197,298 |
| Events in quadrant C | 984,257 | 188,542 |
| Events in quadrant D | 2,512,048 | 170,868 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36 | 0 |
| B | 0 | 36 | 0 |
| C | 0 | 36 | 0 |
| D | 0 | 36 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4765 | 2 |
| B | 0 | 4165 | 1 |
| C | 0 | 3969 | 4 |
| D | 0 | 8713 | 1 |
| 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 | 1746 | 88 | 5.040092% |
| B | 1746 | 71 | 4.066438% |
| C | 1745 | 58 | 3.323782% |
| D | 1746 | 676 | 38.717068% |
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 | 3036 | 1746 | 1 | 1 | 0.03% | 0.06% |  |
| B | 3036 | 1746 | 1 | 1 | 0.03% | 0.06% |  |
| C | 3036 | 1746 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3036 | 1746 | 470 | 470 | 15.48% | 26.92% |  |
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 | 8 | 5 | 145927 | 2633.55 | 264 | 258 | 55.3 |
| A | 13 | 14 | 3332 | 55.57 | 264 | 258 | 55.3 |
| A | 0 | 226 | 2457 | 39.76 | 264 | 258 | 55.3 |
| B | 4 | 48 | 16633 | 321.5 | 259 | 253 | 50.9 |
| B | 12 | 111 | 5324 | 99.53 | 259 | 253 | 50.9 |
| B | 11 | 111 | 4678 | 86.85 | 259 | 253 | 50.9 |
| C | 13 | 61 | 1892 | 27.49 | 252 | 253 | 59.6 |
| C | 8 | 222 | 708 | 7.63 | 252 | 253 | 59.6 |
| C | 1 | 3 | 666 | 6.93 | 252 | 253 | 59.6 |
| D | 2 | 16 | 1545803 | 26813.98 | 219 | 213 | 57.6 |
| D | 1 | 52 | 69653 | 1204.69 | 219 | 213 | 57.6 |
| D | 2 | 152 | 37019 | 638.54 | 219 | 213 | 57.6 |
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 |  |