Observation information
- date-obs: 2019-05-17
- time-obs: 12:25:58.246800000
- date-end: 2019-05-17
- time-end: 13:42:15.246400000
- obs_id: A06_003T02_9000002926
- exposure: 1602.21016246
- sourceid: NGC 4395
- observer: hutchingsj
- ra_pnt: 186.4536
- dec_pnt: 33.54693
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A06_003T02_9000002926_19647cztM0_level2.evt
| modeM0/AS1A06_003T02_9000002926_19647cztM0_level2_quad_clean.evt
|
| Size (bytes) | 377,331,840 | 34,004,160 |
| Size | 359.9 MB
| 32.4 MB
|
| Events in quadrant A | 1,842,125 | 227,930 |
| Events in quadrant B | 1,879,007 | 232,446 |
| Events in quadrant C | 1,812,743 | 218,968 |
| Events in quadrant D | 5,639,645 | 85,810 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 79 | 1 |
| B | 0 | 79 | 1 |
| C | 0 | 80 | 2 |
| D | 0 | 79 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8162 | 286 |
| B | 0 | 8144 | 263 |
| C | 0 | 8043 | 279 |
| D | 0 | 19942 | 651 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3729 | 95 | 2.547600% |
| B | 3729 | 98 | 2.628050% |
| C | 3719 | 109 | 2.930895% |
| D | 3689 | 1630 | 44.185416% |
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 | 4574 | 3756 | 5 | 5 | 0.11% | 0.13% |  |
| B | 4574 | 3761 | 1 | 1 | 0.02% | 0.03% |  |
| C | 4574 | 3749 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4573 | 3731 | 1524 | 1524 | 33.33% | 40.85% |  |
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 | 5 | 16 | 38141 | 388.88 | 468 | 457 | 96.9 |
| A | 0 | 226 | 4151 | 38.12 | 468 | 457 | 96.9 |
| A | 3 | 137 | 3977 | 36.32 | 468 | 457 | 96.9 |
| B | 3 | 112 | 22140 | 234.69 | 465 | 453 | 92.4 |
| B | 0 | 230 | 11491 | 119.45 | 465 | 453 | 92.4 |
| B | 12 | 111 | 11424 | 118.72 | 465 | 453 | 92.4 |
| C | 14 | 238 | 68492 | 640.33 | 446 | 448 | 106.3 |
| C | 13 | 61 | 3118 | 25.13 | 446 | 448 | 106.3 |
| C | 3 | 233 | 3103 | 24.98 | 446 | 448 | 106.3 |
| D | 1 | 20 | 3923522 | 48394.04 | 323 | 313 | 81.1 |
| D | 1 | 52 | 218067 | 2686.07 | 323 | 313 | 81.1 |
| D | 12 | 218 | 210049 | 2587.16 | 323 | 313 | 81.1 |
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 |  |