Observation information
- date-obs: 2017-04-16
- time-obs: 01:34:05.424400000
- date-end: 2017-04-16
- time-end: 02:29:32.420300000
- obs_id: C02_030T01_9000001168
- exposure: 2221.34062594
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_030T01_9000001168_08377cztM0_level2.evt
| modeM0/AS1C02_030T01_9000001168_08377cztM0_level2_quad_clean.evt
|
| Size (bytes) | 154,535,040 | 44,182,080 |
| Size | 147.4 MB
| 42.1 MB
|
| Events in quadrant A | 1,090,581 | 295,153 |
| Events in quadrant B | 1,152,431 | 300,208 |
| Events in quadrant C | 1,081,120 | 297,943 |
| Events in quadrant D | 1,201,573 | 283,102 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 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 | 4669 | 2 |
| B | 0 | 4787 | 1 |
| C | 0 | 4617 | 1 |
| D | 0 | 5037 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2237 | 13 | 0.581135% |
| B | 2237 | 31 | 1.385785% |
| C | 2237 | 10 | 0.447027% |
| D | 2237 | 15 | 0.670541% |
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 | 3327 | 2238 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3327 | 2238 | 6 | 6 | 0.18% | 0.27% |  |
| C | 3327 | 2238 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3327 | 2238 | 5 | 5 | 0.15% | 0.22% |  |
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 | 111 | 15481 | 264.75 | 278 | 273 | 57.4 |
| A | 12 | 194 | 2534 | 39.36 | 278 | 273 | 57.4 |
| A | 0 | 226 | 2531 | 39.31 | 278 | 273 | 57.4 |
| B | 10 | 16 | 28825 | 518.5 | 281 | 274 | 55.1 |
| B | 4 | 81 | 13407 | 238.5 | 281 | 274 | 55.1 |
| B | 0 | 214 | 6693 | 116.57 | 281 | 274 | 55.1 |
| C | 13 | 61 | 2113 | 27.83 | 276 | 276 | 66.0 |
| C | 1 | 16 | 1204 | 14.06 | 276 | 276 | 66.0 |
| C | 8 | 128 | 874 | 9.06 | 276 | 276 | 66.0 |
| D | 12 | 221 | 68277 | 1012.17 | 271 | 263 | 67.2 |
| D | 13 | 122 | 34557 | 510.36 | 271 | 263 | 67.2 |
| D | 8 | 195 | 26099 | 384.49 | 271 | 263 | 67.2 |
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 |  |