Observation information
- date-obs: 2022-04-15
- time-obs: 19:57:02.825600000
- date-end: 2022-04-15
- time-end: 22:07:17.821700000
- obs_id: T05_022T01_9000005070
- exposure: 4194.71629106
- sourceid: 4U 1820-30
- observer: aruberi
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T05_022T01_9000005070_35402cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35402cztM0_level2_quad_clean.evt
|
| Size (bytes) | 656,792,640 | 81,573,120 |
| Size | 626.4 MB
| 77.8 MB
|
| Events in quadrant A | 2,615,125 | 574,253 |
| Events in quadrant B | 6,888,029 | 535,485 |
| Events in quadrant C | 3,955,948 | 535,231 |
| Events in quadrant D | 6,064,827 | 444,401 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11299 | 3 |
| B | 0 | 24194 | 2 |
| C | 0 | 14917 | 2 |
| D | 0 | 21712 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112 | 0 |
| B | 0 | 112 | 0 |
| C | 0 | 112 | 0 |
| D | 0 | 112 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5420 | 6 | 0.110701% |
| B | 5420 | 1424 | 26.273063% |
| C | 5420 | 492 | 9.077491% |
| D | 5420 | 1257 | 23.191882% |
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 | 7122 | 5421 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7122 | 5421 | 1099 | 1099 | 15.43% | 20.27% |  |
| C | 7122 | 5421 | 397 | 397 | 5.57% | 7.32% |  |
| D | 7122 | 5421 | 965 | 965 | 13.55% | 17.80% |  |
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 | 10 | 83 | 125990 | 971.78 | 636 | 621 | 129.0 |
| A | 13 | 6 | 16982 | 126.82 | 636 | 621 | 129.0 |
| A | 13 | 254 | 8732 | 62.87 | 636 | 621 | 129.0 |
| B | 4 | 251 | 2333925 | 21242.9 | 560 | 545 | 109.8 |
| B | 5 | 14 | 539798 | 4909.31 | 560 | 545 | 109.8 |
| B | 5 | 31 | 526071 | 4784.35 | 560 | 545 | 109.8 |
| C | 0 | 207 | 1062571 | 7608.67 | 596 | 600 | 139.6 |
| C | 0 | 10 | 329061 | 2353.31 | 596 | 600 | 139.6 |
| C | 15 | 214 | 214935 | 1535.64 | 596 | 600 | 139.6 |
| D | 7 | 80 | 2489720 | 18701.08 | 539 | 524 | 133.1 |
| D | 13 | 249 | 715515 | 5371.66 | 539 | 524 | 133.1 |
| D | 8 | 195 | 183867 | 1377.44 | 539 | 524 | 133.1 |
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 |  |