Observation information
- date-obs: 2024-07-21
- time-obs: 21:07:53.415100000
- date-end: 2024-07-22
- time-end: 02:39:56.388100000
- obs_id: A13_082T01_9000006342
- exposure: 17413.8781843
- sourceid: NGC 1399
- observer: pshalima
- ra_pnt: 54.62094
- dec_pnt: -35.45066
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_082T01_9000006342_47672cztM0_level2.fits
| modeM0/AS1A13_082T01_9000006342_47672cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,363,694,400 | 286,862,400 |
| Size | 1.3 GB
| 273.6 MB
|
| Events in quadrant A | 19,427,613 | 1,902,434 |
| Events in quadrant B | 9,466,211 | 1,971,611 |
| Events in quadrant C | 8,840,010 | 1,900,721 |
| Events in quadrant D | 11,309,938 | 1,628,972 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 70325 | 3 |
| B | 0 | 40813 | 3 |
| C | 0 | 39654 | 3 |
| D | 0 | 47335 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 378 | 0 |
| B | 0 | 378 | 0 |
| C | 0 | 378 | 0 |
| D | 0 | 378 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18588 | 797 | 4.287713% |
| B | 18589 | 300 | 1.613858% |
| C | 18589 | 192 | 1.032869% |
| D | 18589 | 1076 | 5.788369% |
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 | 19923 | 18591 | 123 | 123 | 0.62% | 0.66% |  |
| B | 19924 | 18592 | 59 | 59 | 0.30% | 0.32% |  |
| C | 19924 | 18592 | 50 | 50 | 0.25% | 0.27% |  |
| D | 19924 | 18592 | 755 | 755 | 3.79% | 4.06% |  |
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 | 10163763 | 23654.62 | 2061 | 2014 | 429.6 |
| A | 9 | 191 | 1096006 | 2546.61 | 2061 | 2014 | 429.6 |
| A | 13 | 248 | 113648 | 259.86 | 2061 | 2014 | 429.6 |
| B | 5 | 172 | 518514 | 1261.9 | 2075 | 2007 | 409.3 |
| B | 0 | 200 | 235079 | 569.43 | 2075 | 2007 | 409.3 |
| B | 0 | 190 | 127277 | 306.05 | 2075 | 2007 | 409.3 |
| C | 3 | 233 | 692780 | 1433.41 | 2055 | 2065 | 481.9 |
| C | 14 | 254 | 106871 | 217.5 | 2055 | 2065 | 481.9 |
| C | 12 | 250 | 23837 | 45.18 | 2055 | 2065 | 481.9 |
| D | 12 | 2 | 3232235 | 6411.55 | 2012 | 1948 | 503.8 |
| D | 2 | 249 | 144383 | 282.71 | 2012 | 1948 | 503.8 |
| D | 2 | 234 | 90321 | 175.4 | 2012 | 1948 | 503.8 |
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 |  |