Observation information
- date-obs: 2018-06-21
- time-obs: 02:41:59.655500000
- date-end: 2018-06-22
- time-end: 17:58:50.923400000
- obs_id: A04_022T06_9000002182
- exposure: 59555.6638862
- sourceid: M31 Field No. 12
- observer: dleahy
- ra_pnt: 11.92225
- dec_pnt: 41.85848
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_022T06_9000002182cztM0_level2.fits
| modeM0/AS1A04_022T06_9000002182cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,159,830,720 | 1,058,708,160 |
| Size | 1.1 GB
| 1009.7 MB
|
| Events in quadrant A | 7,022,926 | 6,141,059 |
| Events in quadrant B | 6,832,954 | 6,292,179 |
| Events in quadrant C | 6,876,270 | 5,819,817 |
| Events in quadrant D | 6,202,318 | 5,623,354 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2430 | 0 |
| B | 0 | 2430 | 0 |
| C | 0 | 2430 | 0 |
| D | 0 | 2430 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 323233 | 0 |
| B | 0 | 268400 | 0 |
| C | 0 | 297782 | 0 |
| D | 0 | 268847 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 222 | 0 |
| B | 0 | 222 | 0 |
| C | 0 | 222 | 0 |
| D | 0 | 222 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 119463 | 7629 | 6.386078% |
| B | 119488 | 2207 | 1.847047% |
| C | 119488 | 5147 | 4.307546% |
| D | 119488 | 1854 | 1.551620% |
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 | 141412 | 119297 | 0 | 0 | 0.00% | 0.00% |  |
| B | 141412 | 119477 | 0 | 0 | 0.00% | 0.00% |  |
| C | 141412 | 119368 | 0 | 0 | 0.00% | 0.00% |  |
| D | 141412 | 119472 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 6858 | 11.5 | 1830 | 1722 | 446.7 |
| A | 7 | 110 | 5596 | 8.67 | 1830 | 1722 | 446.7 |
| A | 9 | 19 | 5256 | 7.91 | 1830 | 1722 | 446.7 |
| B | 2 | 9 | 5957 | 12.02 | 1813 | 1737 | 351.1 |
| B | 5 | 128 | 4550 | 8.01 | 1813 | 1737 | 351.1 |
| B | 3 | 17 | 4537 | 7.97 | 1813 | 1737 | 351.1 |
| C | 12 | 241 | 4764 | 6.61 | 1819 | 1701 | 463.7 |
| C | 3 | 126 | 4738 | 6.55 | 1819 | 1701 | 463.7 |
| C | 2 | 191 | 4553 | 6.15 | 1819 | 1701 | 463.7 |
| D | 3 | 14 | 4517 | 6.09 | 1773 | 1613 | 476.7 |
| D | 6 | 231 | 4494 | 6.04 | 1773 | 1613 | 476.7 |
| D | 7 | 3 | 4365 | 5.77 | 1773 | 1613 | 476.7 |
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 |  |