Observation information
- date-obs: 2018-10-14
- time-obs: 17:46:31.173300000
- date-end: 2018-10-14
- time-end: 19:45:42.170800000
- obs_id: C04_008T01_9000002434
- exposure: 4312.68236074
- sourceid: Crab Offset
- observer: arrao
- ra_pnt: 83.428
- dec_pnt: 22.015
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_008T01_9000002434_16469cztM0_level2.evt
| modeM0/AS1C04_008T01_9000002434_16469cztM0_level2_quad_clean.evt
|
| Size (bytes) | 441,334,080 | 96,353,280 |
| Size | 420.9 MB
| 91.9 MB
|
| Events in quadrant A | 3,203,595 | 630,181 |
| Events in quadrant B | 3,482,980 | 644,607 |
| Events in quadrant C | 3,196,125 | 621,522 |
| Events in quadrant D | 3,074,811 | 601,964 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13216 | 2 |
| B | 0 | 14266 | 1 |
| C | 0 | 13268 | 1 |
| D | 0 | 12968 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6011 | 49 | 0.815172% |
| B | 6011 | 64 | 1.064715% |
| C | 6011 | 78 | 1.297621% |
| D | 6011 | 37 | 0.615538% |
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 | 7152 | 6012 | 14 | 14 | 0.20% | 0.23% |  |
| B | 7152 | 6012 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7152 | 6012 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7152 | 6012 | 10 | 10 | 0.14% | 0.17% |  |
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 | 174 | 240535 | 1535.27 | 770 | 757 | 156.2 |
| A | 0 | 226 | 6715 | 38.15 | 770 | 757 | 156.2 |
| A | 12 | 194 | 5567 | 30.8 | 770 | 757 | 156.2 |
| B | 15 | 35 | 219892 | 1484.56 | 775 | 760 | 147.6 |
| B | 4 | 48 | 78314 | 525.41 | 775 | 760 | 147.6 |
| B | 10 | 16 | 40896 | 271.91 | 775 | 760 | 147.6 |
| C | 3 | 233 | 150642 | 856.17 | 747 | 753 | 175.1 |
| C | 14 | 238 | 117066 | 664.39 | 747 | 753 | 175.1 |
| C | 7 | 247 | 16079 | 87.54 | 747 | 753 | 175.1 |
| D | 12 | 110 | 93918 | 504.91 | 752 | 734 | 184.6 |
| D | 13 | 248 | 66531 | 356.51 | 752 | 734 | 184.6 |
| D | 2 | 234 | 34063 | 180.59 | 752 | 734 | 184.6 |
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 |  |