Observation information
- date-obs: 2016-03-19
- time-obs: 17:40:03.789900000
- date-end: 2016-03-19
- time-end: 20:38:44.784500000
- obs_id: T01_071T01_9000000382
- exposure: 5713.6579028
- sourceid: NGC 1851
- observer: annapurni
- ra_pnt: 78.52817
- dec_pnt: -40.04655
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_071T01_9000000382_02571cztM0_level2.evt
| modeM0/AS1T01_071T01_9000000382_02571cztM0_level2_quad_clean.evt
|
| Size (bytes) | 576,279,360 | 99,843,840 |
| Size | 549.6 MB
| 95.2 MB
|
| Events in quadrant A | 4,073,972 | 598,848 |
| Events in quadrant B | 4,157,741 | 608,591 |
| Events in quadrant C | 4,073,212 | 603,092 |
| Events in quadrant D | 4,533,667 | 585,309 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18456 | 3 |
| B | 0 | 18561 | 2 |
| C | 0 | 18548 | 2 |
| D | 0 | 19874 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 188 | 0 |
| B | 0 | 188 | 0 |
| C | 0 | 188 | 0 |
| D | 0 | 188 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 9036 | 25 | 0.276671% |
| B | 9036 | 30 | 0.332005% |
| C | 9036 | 25 | 0.276671% |
| D | 9036 | 45 | 0.498008% |
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 | 10721 | 9038 | 0 | 0 | 0.00% | 0.00% |  |
| B | 10721 | 9038 | 1 | 1 | 0.01% | 0.01% |  |
| C | 10721 | 9038 | 15 | 15 | 0.14% | 0.17% |  |
| D | 10721 | 9038 | 24 | 24 | 0.22% | 0.27% |  |
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 | 14 | 238 | 67036 | 310.66 | 1035 | 1009 | 212.5 |
| A | 3 | 1 | 16126 | 71.13 | 1035 | 1009 | 212.5 |
| A | 12 | 194 | 11594 | 49.8 | 1035 | 1009 | 212.5 |
| B | 14 | 167 | 31759 | 150.35 | 1052 | 1024 | 204.4 |
| B | 0 | 191 | 16403 | 75.23 | 1052 | 1024 | 204.4 |
| B | 4 | 173 | 15291 | 69.79 | 1052 | 1024 | 204.4 |
| C | 10 | 34 | 55950 | 234.38 | 1003 | 1007 | 234.4 |
| C | 9 | 70 | 41053 | 170.83 | 1003 | 1007 | 234.4 |
| C | 12 | 4 | 13507 | 53.32 | 1003 | 1007 | 234.4 |
| D | 2 | 184 | 270396 | 1145.91 | 991 | 966 | 235.1 |
| D | 5 | 233 | 171369 | 724.74 | 991 | 966 | 235.1 |
| D | 2 | 136 | 106779 | 450.03 | 991 | 966 | 235.1 |
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 |  |
| Veto Counter |  |