Observation information
- date-obs: 2017-05-15
- time-obs: 22:20:04.994300000
- date-end: 2017-05-16
- time-end: 01:54:17.108400000
- obs_id: A03_135T01_9000001226
- exposure: 6274.33541625
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_135T01_9000001226_08820cztM0_level2.evt
| modeM0/AS1A03_135T01_9000001226_08820cztM0_level2_quad_clean.evt
|
| Size (bytes) | 763,433,280 | 126,460,800 |
| Size | 728.1 MB
| 120.6 MB
|
| Events in quadrant A | 5,360,654 | 790,634 |
| Events in quadrant B | 5,201,426 | 787,909 |
| Events in quadrant C | 4,866,121 | 778,730 |
| Events in quadrant D | 6,982,944 | 748,363 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 252 | 20 |
| B | 0 | 252 | 34 |
| C | 0 | 252 | 26 |
| D | 0 | 251 | 27 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26871 | 4377 |
| B | 0 | 26917 | 4440 |
| C | 0 | 25807 | 3983 |
| D | 0 | 34027 | 6499 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 2 |
| B | 0 | 4 | 1 |
| C | 0 | 4 | 2 |
| D | 0 | 4 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 10446 | 62 | 0.593529% |
| B | 10461 | 122 | 1.166236% |
| C | 10460 | 44 | 0.420650% |
| D | 10185 | 401 | 3.937162% |
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 | 12847 | 11566 | 8 | 8 | 0.06% | 0.07% |  |
| B | 12852 | 11511 | 66 | 66 | 0.51% | 0.57% |  |
| C | 12852 | 11586 | 19 | 19 | 0.15% | 0.16% |  |
| D | 12849 | 11313 | 348 | 348 | 2.71% | 3.08% |  |
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 | 8 | 5 | 473153 | 1881.59 | 1229 | 1203 | 250.8 |
| A | 13 | 251 | 71170 | 278.95 | 1229 | 1203 | 250.8 |
| A | 5 | 16 | 30581 | 117.13 | 1229 | 1203 | 250.8 |
| B | 10 | 16 | 310546 | 1316.31 | 1229 | 1200 | 235.0 |
| B | 0 | 214 | 85302 | 357.86 | 1229 | 1200 | 235.0 |
| B | 12 | 111 | 25155 | 101.93 | 1229 | 1200 | 235.0 |
| C | 9 | 54 | 185623 | 669.63 | 1186 | 1195 | 275.4 |
| C | 14 | 234 | 27016 | 93.75 | 1186 | 1195 | 275.4 |
| C | 8 | 128 | 12533 | 41.17 | 1186 | 1195 | 275.4 |
| D | 1 | 52 | 1784194 | 6030.84 | 1140 | 1110 | 295.7 |
| D | 2 | 152 | 399726 | 1348.22 | 1140 | 1110 | 295.7 |
| D | 5 | 233 | 309478 | 1042.98 | 1140 | 1110 | 295.7 |
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 |  |