Observation information
- date-obs: 2017-12-18
- time-obs: 12:34:37.189800000
- date-end: 2017-12-18
- time-end: 13:59:27.186100000
- obs_id: A04_075T03_9000001780
- exposure: 2540.3091628
- sourceid: NGC 2477
- observer: rsagar52
- ra_pnt: 118.0048
- dec_pnt: -38.48083
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_075T03_9000001780_12025cztM0_level2.evt
| modeM0/AS1A04_075T03_9000001780_12025cztM0_level2_quad_clean.evt
|
| Size (bytes) | 319,158,720 | 52,099,200 |
| Size | 304.4 MB
| 49.7 MB
|
| Events in quadrant A | 2,094,533 | 330,227 |
| Events in quadrant B | 2,781,263 | 326,525 |
| Events in quadrant C | 1,898,346 | 325,310 |
| Events in quadrant D | 2,622,193 | 316,437 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 80 | 0 |
| B | 0 | 80 | 0 |
| C | 0 | 80 | 0 |
| D | 0 | 80 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8856 | 2 |
| B | 0 | 11004 | 1 |
| C | 0 | 8349 | 1 |
| D | 0 | 10448 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3955 | 77 | 1.946903% |
| B | 3955 | 224 | 5.663717% |
| C | 3955 | 37 | 0.935525% |
| D | 3955 | 186 | 4.702908% |
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 | 5091 | 3956 | 8 | 8 | 0.16% | 0.20% |  |
| B | 5091 | 3956 | 118 | 118 | 2.32% | 2.98% |  |
| C | 5091 | 3956 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5091 | 3956 | 87 | 87 | 1.71% | 2.20% |  |
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 | 1 | 162 | 57688 | 559.03 | 500 | 490 | 102.3 |
| A | 13 | 251 | 33538 | 323.0 | 500 | 490 | 102.3 |
| A | 1 | 178 | 27490 | 263.89 | 500 | 490 | 102.3 |
| B | 4 | 239 | 296834 | 3192.38 | 492 | 481 | 92.8 |
| B | 0 | 85 | 249192 | 2679.17 | 492 | 481 | 92.8 |
| B | 15 | 204 | 125396 | 1345.61 | 492 | 481 | 92.8 |
| C | 13 | 61 | 3557 | 27.25 | 485 | 487 | 112.7 |
| C | 0 | 207 | 2294 | 16.04 | 485 | 487 | 112.7 |
| C | 13 | 250 | 2092 | 14.24 | 485 | 487 | 112.7 |
| D | 4 | 95 | 328131 | 2872.85 | 476 | 464 | 114.1 |
| D | 1 | 52 | 191014 | 1670.66 | 476 | 464 | 114.1 |
| D | 8 | 195 | 132120 | 1154.31 | 476 | 464 | 114.1 |
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 |  |