Observation information
- date-obs: 2018-02-03
- time-obs: 00:19:59.972000000
- date-end: 2018-02-03
- time-end: 02:27:33.970100000
- obs_id: A04_174T01_9000001876
- exposure: 4335.75912255
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12713cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12713cztM0_level2_quad_clean.evt
|
| Size (bytes) | 562,248,000 | 96,779,520 |
| Size | 536.2 MB
| 92.3 MB
|
| Events in quadrant A | 3,428,439 | 623,054 |
| Events in quadrant B | 4,910,535 | 587,621 |
| Events in quadrant C | 3,368,606 | 622,630 |
| Events in quadrant D | 4,822,247 | 586,391 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15072 | 2 |
| B | 0 | 19421 | 1 |
| C | 0 | 14964 | 1 |
| D | 0 | 19450 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7339 | 40 | 0.545033% |
| B | 7339 | 595 | 8.107372% |
| C | 7339 | 23 | 0.313394% |
| D | 7339 | 404 | 5.504837% |
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 | 7655 | 7341 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7655 | 7341 | 426 | 426 | 5.56% | 5.80% |  |
| C | 7655 | 7341 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7655 | 7341 | 389 | 389 | 5.08% | 5.30% |  |
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 | 27784 | 148.21 | 877 | 860 | 181.7 |
| A | 9 | 143 | 13124 | 67.51 | 877 | 860 | 181.7 |
| A | 12 | 189 | 10812 | 54.78 | 877 | 860 | 181.7 |
| B | 4 | 239 | 1477226 | 9025.36 | 847 | 826 | 163.6 |
| B | 4 | 81 | 49615 | 298.25 | 847 | 826 | 163.6 |
| B | 0 | 214 | 19179 | 112.19 | 847 | 826 | 163.6 |
| C | 8 | 128 | 13946 | 65.78 | 855 | 864 | 198.9 |
| C | 15 | 208 | 10383 | 47.86 | 855 | 864 | 198.9 |
| C | 8 | 112 | 6890 | 30.3 | 855 | 864 | 198.9 |
| D | 1 | 52 | 1230998 | 6169.9 | 826 | 806 | 199.4 |
| D | 13 | 104 | 222085 | 1109.8 | 826 | 806 | 199.4 |
| D | 10 | 199 | 108423 | 539.74 | 826 | 806 | 199.4 |
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 |  |