Observation information
- date-obs: 2018-04-07
- time-obs: 10:26:35.873900000
- date-end: 2018-04-07
- time-end: 12:47:26.877500000
- obs_id: G08_083T03_9000002022
- exposure: 4114.2594282
- sourceid: NGC 3621
- observer: stalin
- ra_pnt: 169.5688
- dec_pnt: -32.81417
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_083T03_9000002022_13652cztM0_level2.evt
| modeM0/AS1G08_083T03_9000002022_13652cztM0_level2_quad_clean.evt
|
| Size (bytes) | 489,320,640 | 85,259,520 |
| Size | 466.7 MB
| 81.3 MB
|
| Events in quadrant A | 3,426,467 | 526,672 |
| Events in quadrant B | 3,611,457 | 530,848 |
| Events in quadrant C | 3,529,428 | 522,660 |
| Events in quadrant D | 3,767,526 | 505,534 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14729 | 3 |
| B | 0 | 15049 | 2 |
| C | 0 | 14876 | 2 |
| D | 0 | 15418 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7127 | 153 | 2.146766% |
| B | 7127 | 189 | 2.651887% |
| C | 7127 | 125 | 1.753894% |
| D | 7127 | 141 | 1.978392% |
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 | 7713 | 7129 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7713 | 7129 | 1 | 1 | 0.01% | 0.01% |  |
| C | 7713 | 7129 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7713 | 7129 | 9 | 9 | 0.12% | 0.13% |  |
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 | 226 | 7731 | 38.06 | 887 | 865 | 180.4 |
| A | 1 | 162 | 7481 | 36.67 | 887 | 865 | 180.4 |
| A | 12 | 194 | 6910 | 33.51 | 887 | 865 | 180.4 |
| B | 0 | 219 | 81886 | 476.93 | 884 | 860 | 169.9 |
| B | 12 | 111 | 20401 | 115.02 | 884 | 860 | 169.9 |
| B | 0 | 229 | 19467 | 109.52 | 884 | 860 | 169.9 |
| C | 3 | 233 | 162205 | 808.41 | 863 | 867 | 199.6 |
| C | 13 | 61 | 6253 | 26.99 | 863 | 867 | 199.6 |
| C | 3 | 202 | 2066 | 6.01 | 863 | 867 | 199.6 |
| D | 8 | 195 | 322888 | 1544.9 | 859 | 839 | 208.5 |
| D | 5 | 222 | 88454 | 420.3 | 859 | 839 | 208.5 |
| D | 13 | 249 | 32144 | 150.17 | 859 | 839 | 208.5 |
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 |  |