Observation information
- date-obs: 2020-09-29
- time-obs: 07:16:21.986100000
- date-end: 2020-09-29
- time-end: 12:42:47.976500000
- obs_id: A09_120T02_9000003904
- exposure: 8971.72190398
- sourceid: Crab
- observer: avishek
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_120T02_9000003904_27062cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003904_27062cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,160,722,880 | 208,252,800 |
| Size | 2.0 GB
| 198.6 MB
|
| Events in quadrant A | 18,630,728 | 1,167,686 |
| Events in quadrant B | 15,113,801 | 1,390,275 |
| Events in quadrant C | 8,841,618 | 1,347,254 |
| Events in quadrant D | 21,674,719 | 1,192,033 |
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 | 66942 | 0 |
| B | 0 | 55737 | 0 |
| C | 0 | 36657 | 0 |
| D | 0 | 76145 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 17521 | 3775 | 21.545574% |
| B | 17521 | 2403 | 13.714971% |
| C | 17521 | 249 | 1.421152% |
| D | 17521 | 4972 | 28.377376% |
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 | 19586 | 17524 | 3260 | 3260 | 16.64% | 18.60% |  |
| B | 19586 | 17524 | 1911 | 1911 | 9.76% | 10.91% |  |
| C | 19586 | 17524 | 21 | 21 | 0.11% | 0.12% |  |
| D | 19586 | 17524 | 4639 | 4639 | 23.69% | 26.47% |  |
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 | 14 | 235 | 10860633 | 27250.4 | 1986 | 1951 | 398.5 |
| A | 9 | 130 | 70558 | 172.17 | 1986 | 1951 | 398.5 |
| A | 6 | 16 | 40114 | 95.77 | 1986 | 1951 | 398.5 |
| B | 0 | 189 | 6719120 | 16755.34 | 2093 | 2042 | 400.9 |
| B | 10 | 246 | 93459 | 228.03 | 2093 | 2042 | 400.9 |
| B | 12 | 111 | 48654 | 116.27 | 2093 | 2042 | 400.9 |
| C | 14 | 238 | 335612 | 673.56 | 2097 | 2113 | 495.1 |
| C | 15 | 208 | 294823 | 591.18 | 2097 | 2113 | 495.1 |
| C | 4 | 224 | 28616 | 53.53 | 2097 | 2113 | 495.1 |
| D | 1 | 52 | 13027425 | 29566.26 | 1829 | 1785 | 440.6 |
| D | 12 | 233 | 1183298 | 2681.86 | 1829 | 1785 | 440.6 |
| D | 2 | 250 | 480855 | 1087.42 | 1829 | 1785 | 440.6 |
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 |  |