Observation information
- date-obs: 2015-12-31
- time-obs: 02:13:29.838600000
- date-end: 2015-12-31
- time-end: 04:13:14.083200000
- obs_id: G04_014T02_9000000232
- exposure: 6374.23128362
- sourceid: Abell 2256
- observer: annapurni
- ra_pnt: 255.9875
- dec_pnt: 78.7175
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G04_014T02_9000000232_01392cztM0_level2.evt
| modeM0/AS1G04_014T02_9000000232_01392cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,116,622,080 | 94,798,080 |
| Size | 1.0 GB
| 90.4 MB
|
| Events in quadrant A | 11,036,611 | 585,900 |
| Events in quadrant B | 7,945,740 | 625,794 |
| Events in quadrant C | 7,252,357 | 612,949 |
| Events in quadrant D | 7,155,771 | 596,293 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 37402 | 1 |
| B | 0 | 28172 | 0 |
| C | 0 | 26120 | 0 |
| D | 0 | 25887 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6450 | 551 | 8.542636% |
| B | 6450 | 14 | 0.217054% |
| C | 6450 | 3 | 0.046512% |
| D | 6450 | 70 | 1.085271% |
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 | 7185 | 6450 | 1708 | 1708 | 23.77% | 26.48% |  |
| B | 7185 | 6451 | 246 | 246 | 3.42% | 3.81% |  |
| C | 7185 | 6451 | 139 | 139 | 1.93% | 2.15% |  |
| D | 7185 | 6451 | 271 | 271 | 3.77% | 4.20% |  |
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 | 127 | 3804326 | 8549.49 | 1854 | 1869 | 444.8 |
| A | 4 | 32 | 108327 | 239.36 | 1854 | 1869 | 444.8 |
| A | 3 | 80 | 8575 | 15.08 | 1854 | 1869 | 444.8 |
| B | 12 | 52 | 119132 | 246.5 | 1999 | 2009 | 475.1 |
| B | 6 | 53 | 61241 | 124.66 | 1999 | 2009 | 475.1 |
| B | 8 | 219 | 51958 | 105.13 | 1999 | 2009 | 475.1 |
| C | 15 | 241 | 227319 | 452.69 | 1784 | 1842 | 498.1 |
| C | 7 | 220 | 24812 | 46.12 | 1784 | 1842 | 498.1 |
| C | 3 | 111 | 20035 | 36.53 | 1784 | 1842 | 498.1 |
| D | 9 | 53 | 225345 | 429.21 | 1718 | 1770 | 520.9 |
| D | 2 | 16 | 212864 | 405.25 | 1718 | 1770 | 520.9 |
| D | 1 | 83 | 200683 | 381.86 | 1718 | 1770 | 520.9 |
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 |  |