Observation information
- date-obs: 2017-02-20
- time-obs: 16:52:42.375100000
- date-end: 2017-02-20
- time-end: 19:29:14.383900000
- obs_id: A02_024T01_9000001044
- exposure: 4841.85256957
- sourceid: NGC 4388
- observer: labani
- ra_pnt: 186.4448
- dec_pnt: 12.66209
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_024T01_9000001044_07573cztM0_level2.evt
| modeM0/AS1A02_024T01_9000001044_07573cztM0_level2_quad_clean.evt
|
| Size (bytes) | 557,608,320 | 94,101,120 |
| Size | 531.8 MB
| 89.7 MB
|
| Events in quadrant A | 3,817,901 | 575,007 |
| Events in quadrant B | 3,941,025 | 585,451 |
| Events in quadrant C | 4,077,074 | 578,879 |
| Events in quadrant D | 4,511,588 | 557,326 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 164 | 0 |
| B | 0 | 164 | 0 |
| C | 0 | 164 | 0 |
| D | 0 | 164 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16613 | 3 |
| B | 0 | 16926 | 2 |
| C | 0 | 17615 | 2 |
| D | 0 | 18906 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7952 | 46 | 0.578471% |
| B | 7952 | 95 | 1.194668% |
| C | 7952 | 47 | 0.591046% |
| D | 7952 | 174 | 2.188129% |
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 | 9392 | 7954 | 3 | 3 | 0.03% | 0.04% |  |
| B | 9392 | 7954 | 1 | 1 | 0.01% | 0.01% |  |
| C | 9392 | 7954 | 0 | 0 | 0.00% | 0.00% |  |
| D | 9392 | 7954 | 67 | 67 | 0.71% | 0.84% |  |
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 | 15 | 239 | 68921 | 342.72 | 967 | 947 | 198.3 |
| A | 3 | 1 | 22107 | 106.69 | 967 | 947 | 198.3 |
| A | 0 | 226 | 9189 | 41.56 | 967 | 947 | 198.3 |
| B | 0 | 214 | 61819 | 326.56 | 975 | 952 | 186.4 |
| B | 0 | 219 | 30960 | 161.0 | 975 | 952 | 186.4 |
| B | 12 | 111 | 19226 | 98.04 | 975 | 952 | 186.4 |
| C | 9 | 68 | 373799 | 1693.0 | 943 | 949 | 220.2 |
| C | 8 | 229 | 10372 | 42.79 | 943 | 949 | 220.2 |
| C | 1 | 16 | 7954 | 31.81 | 943 | 949 | 220.2 |
| D | 2 | 152 | 660165 | 2836.35 | 939 | 908 | 232.4 |
| D | 5 | 233 | 117503 | 501.63 | 939 | 908 | 232.4 |
| D | 2 | 14 | 86151 | 366.75 | 939 | 908 | 232.4 |
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 |  |