Observation information
- date-obs: 2018-02-02
- time-obs: 03:30:18.984800000
- date-end: 2018-02-02
- time-end: 09:03:48.980700000
- obs_id: A04_174T01_9000001876
- exposure: 10045.2529119
- 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_12702cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12702cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,302,480,000 | 223,053,120 |
| Size | 1.2 GB
| 212.7 MB
|
| Events in quadrant A | 8,541,971 | 1,412,877 |
| Events in quadrant B | 12,464,197 | 1,334,556 |
| Events in quadrant C | 8,587,028 | 1,415,628 |
| Events in quadrant D | 8,629,039 | 1,345,155 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36989 | 4 |
| B | 0 | 48377 | 3 |
| C | 0 | 37469 | 3 |
| D | 0 | 38255 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 366 | 0 |
| B | 0 | 366 | 0 |
| C | 0 | 366 | 0 |
| D | 0 | 366 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18100 | 159 | 0.878453% |
| B | 18100 | 1520 | 8.397790% |
| C | 18100 | 111 | 0.613260% |
| D | 18100 | 181 | 1.000000% |
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 | 20011 | 18104 | 4 | 4 | 0.02% | 0.02% |  |
| B | 20011 | 18104 | 984 | 984 | 4.92% | 5.44% |  |
| C | 20011 | 18104 | 7 | 7 | 0.03% | 0.04% |  |
| D | 20011 | 18104 | 84 | 84 | 0.42% | 0.46% |  |
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 | 15 | 60282 | 129.98 | 2183 | 2136 | 447.3 |
| A | 9 | 143 | 40802 | 86.44 | 2183 | 2136 | 447.3 |
| A | 12 | 189 | 40453 | 85.66 | 2183 | 2136 | 447.3 |
| B | 4 | 239 | 3626937 | 8989.54 | 2100 | 2047 | 403.2 |
| B | 3 | 64 | 181650 | 445.41 | 2100 | 2047 | 403.2 |
| B | 0 | 219 | 179680 | 440.52 | 2100 | 2047 | 403.2 |
| C | 15 | 208 | 284313 | 574.67 | 2123 | 2146 | 491.0 |
| C | 13 | 61 | 15504 | 27.21 | 2123 | 2146 | 491.0 |
| C | 8 | 128 | 12074 | 20.22 | 2123 | 2146 | 491.0 |
| D | 1 | 52 | 250878 | 486.35 | 2107 | 2057 | 511.6 |
| D | 13 | 249 | 167908 | 324.18 | 2107 | 2057 | 511.6 |
| D | 13 | 104 | 70748 | 134.27 | 2107 | 2057 | 511.6 |
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 |  |