Observation information
- date-obs: 2023-12-09
- time-obs: 23:58:29.278000000
- date-end: 2023-12-10
- time-end: 03:53:29.262200000
- obs_id: A13_004T09_9000005992
- exposure: 12519.1408756
- sourceid: M31 Field 21
- observer: dleahy
- ra_pnt: 9.854167
- dec_pnt: 39.98889
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_004T09_9000005992_44337cztM0_level2.fits
| modeM0/AS1A13_004T09_9000005992_44337cztM0_level2_quad_clean.evt
|
| Size (bytes) | 824,515,200 | 205,087,680 |
| Size | 786.3 MB
| 195.6 MB
|
| Events in quadrant A | 8,546,332 | 1,353,301 |
| Events in quadrant B | 6,813,826 | 1,374,333 |
| Events in quadrant C | 6,006,839 | 1,356,113 |
| Events in quadrant D | 8,146,009 | 1,226,635 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 264 | 0 |
| B | 0 | 264 | 0 |
| C | 0 | 264 | 0 |
| D | 0 | 264 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35770 | 2 |
| B | 0 | 29060 | 5 |
| C | 0 | 27289 | 2 |
| D | 0 | 33391 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 13010 | 127 | 0.976172% |
| B | 13008 | 316 | 2.429274% |
| C | 13011 | 68 | 0.522635% |
| D | 13010 | 394 | 3.028440% |
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 | 14100 | 13011 | 5 | 5 | 0.04% | 0.04% |  |
| B | 14100 | 13011 | 187 | 187 | 1.33% | 1.44% |  |
| C | 14101 | 13013 | 32 | 32 | 0.23% | 0.25% |  |
| D | 14100 | 13011 | 329 | 329 | 2.33% | 2.53% |  |
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 | 2845877 | 9462.58 | 1446 | 1413 | 300.6 |
| A | 10 | 248 | 25220 | 79.2 | 1446 | 1413 | 300.6 |
| A | 0 | 243 | 24027 | 75.23 | 1446 | 1413 | 300.6 |
| B | 0 | 219 | 728624 | 2578.78 | 1430 | 1385 | 282.0 |
| B | 5 | 255 | 124458 | 436.41 | 1430 | 1385 | 282.0 |
| B | 4 | 173 | 74489 | 259.23 | 1430 | 1385 | 282.0 |
| C | 14 | 254 | 277661 | 822.52 | 1425 | 1434 | 335.8 |
| C | 14 | 96 | 62726 | 182.51 | 1425 | 1434 | 335.8 |
| C | 15 | 208 | 36833 | 105.41 | 1425 | 1434 | 335.8 |
| D | 13 | 249 | 910637 | 2567.08 | 1409 | 1369 | 354.2 |
| D | 12 | 1 | 462802 | 1302.74 | 1409 | 1369 | 354.2 |
| D | 2 | 153 | 225094 | 631.63 | 1409 | 1369 | 354.2 |
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 |  |