Observation information
- date-obs: 2017-04-17
- time-obs: 08:51:29.364600000
- date-end: 2017-04-17
- time-end: 11:35:56.362800000
- obs_id: A03_062T01_9000001176
- exposure: 4730.60410301
- sourceid: NGC 4147
- observer: ananta
- ra_pnt: 182.5262
- dec_pnt: 18.54264
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_062T01_9000001176_08397cztM0_level2.evt
| modeM0/AS1A03_062T01_9000001176_08397cztM0_level2_quad_clean.evt
|
| Size (bytes) | 545,592,960 | 98,435,520 |
| Size | 520.3 MB
| 93.9 MB
|
| Events in quadrant A | 3,839,199 | 618,271 |
| Events in quadrant B | 4,143,261 | 622,025 |
| Events in quadrant C | 3,748,564 | 611,283 |
| Events in quadrant D | 4,266,647 | 590,804 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16328 | 3 |
| B | 0 | 17060 | 2 |
| C | 0 | 16242 | 2 |
| D | 0 | 17826 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7747 | 173 | 2.233122% |
| B | 7747 | 264 | 3.407771% |
| C | 7747 | 122 | 1.574803% |
| D | 7747 | 169 | 2.181490% |
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 | 9867 | 7748 | 1 | 1 | 0.01% | 0.01% |  |
| B | 9867 | 7747 | 58 | 58 | 0.59% | 0.75% |  |
| C | 9867 | 7748 | 1 | 1 | 0.01% | 0.01% |  |
| D | 9867 | 7749 | 47 | 47 | 0.48% | 0.61% |  |
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 | 13 | 248 | 25946 | 122.11 | 990 | 969 | 204.5 |
| A | 0 | 226 | 9320 | 40.83 | 990 | 969 | 204.5 |
| A | 12 | 194 | 8658 | 37.59 | 990 | 969 | 204.5 |
| B | 4 | 48 | 274087 | 1423.37 | 986 | 962 | 191.9 |
| B | 0 | 214 | 22653 | 113.04 | 986 | 962 | 191.9 |
| B | 12 | 111 | 21698 | 108.06 | 986 | 962 | 191.9 |
| C | 1 | 16 | 17278 | 72.64 | 956 | 961 | 224.6 |
| C | 13 | 61 | 7247 | 27.98 | 956 | 961 | 224.6 |
| C | 10 | 169 | 2446 | 6.61 | 956 | 961 | 224.6 |
| D | 2 | 14 | 149167 | 646.86 | 950 | 928 | 229.2 |
| D | 14 | 34 | 143169 | 620.68 | 950 | 928 | 229.2 |
| D | 1 | 52 | 102790 | 444.49 | 950 | 928 | 229.2 |
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 |  |