Observation information
- date-obs: 2018-01-23
- time-obs: 15:01:36.284300000
- date-end: 2018-01-23
- time-end: 17:20:50.277700000
- obs_id: C03_021T01_9000001864
- exposure: 3520.78307782
- sourceid: SSM3_Crab
- observer: ramadevi
- ra_pnt: 192.0269
- dec_pnt: -7.4915
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_021T01_9000001864_12559cztM0_level2.evt
| modeM0/AS1C03_021T01_9000001864_12559cztM0_level2_quad_clean.evt
|
| Size (bytes) | 462,337,920 | 71,550,720 |
| Size | 440.9 MB
| 68.2 MB
|
| Events in quadrant A | 3,156,678 | 430,244 |
| Events in quadrant B | 3,838,378 | 433,419 |
| Events in quadrant C | 3,067,673 | 434,599 |
| Events in quadrant D | 3,499,854 | 417,195 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13763 | 2 |
| B | 0 | 15735 | 1 |
| C | 0 | 13410 | 1 |
| D | 0 | 14884 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6463 | 62 | 0.959307% |
| B | 6463 | 261 | 4.038372% |
| C | 6463 | 34 | 0.526071% |
| D | 6463 | 96 | 1.485378% |
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 | 7559 | 6464 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7559 | 6464 | 121 | 121 | 1.60% | 1.87% |  |
| C | 7559 | 6464 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7559 | 6464 | 44 | 44 | 0.58% | 0.68% |  |
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 | 9 | 143 | 35735 | 212.9 | 804 | 785 | 164.2 |
| A | 8 | 15 | 15665 | 90.64 | 804 | 785 | 164.2 |
| A | 0 | 226 | 7264 | 39.47 | 804 | 785 | 164.2 |
| B | 4 | 239 | 491665 | 3203.32 | 796 | 778 | 153.2 |
| B | 11 | 51 | 135739 | 880.7 | 796 | 778 | 153.2 |
| B | 3 | 209 | 51909 | 333.66 | 796 | 778 | 153.2 |
| C | 14 | 234 | 6405 | 30.89 | 785 | 790 | 181.8 |
| C | 13 | 61 | 5794 | 27.53 | 785 | 790 | 181.8 |
| C | 12 | 4 | 2107 | 7.25 | 785 | 790 | 181.8 |
| D | 1 | 52 | 381178 | 2050.29 | 775 | 755 | 185.5 |
| D | 13 | 104 | 63692 | 339.2 | 775 | 755 | 185.5 |
| D | 13 | 249 | 52251 | 277.54 | 775 | 755 | 185.5 |
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 |  |