Observation information
- date-obs: 2017-02-19
- time-obs: 22:32:35.344600000
- date-end: 2017-02-20
- time-end: 09:06:39.354300000
- obs_id: A02_024T01_9000001044
- exposure: 4187.07305744
- 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_07567cztM0_level2.evt
| modeM0/AS1A02_024T01_9000001044_07567cztM0_level2_quad_clean.evt
|
| Size (bytes) | 625,455,360 | 87,644,160 |
| Size | 596.5 MB
| 83.6 MB
|
| Events in quadrant A | 4,326,276 | 526,020 |
| Events in quadrant B | 3,963,442 | 531,377 |
| Events in quadrant C | 5,100,004 | 520,707 |
| Events in quadrant D | 4,991,138 | 500,626 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 172 | 0 |
| B | 0 | 172 | 2 |
| C | 0 | 172 | 4 |
| D | 0 | 172 | 2 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18476 | 189 |
| B | 0 | 17389 | 162 |
| C | 0 | 21291 | 128 |
| D | 0 | 20769 | 195 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8258 | 160 | 1.937515% |
| B | 8271 | 56 | 0.677064% |
| C | 8282 | 52 | 0.627868% |
| D | 8265 | 232 | 2.807018% |
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 | 38045 | 8336 | 92 | 92 | 0.24% | 1.10% |  |
| B | 38045 | 8335 | 4 | 4 | 0.01% | 0.05% |  |
| C | 38045 | 8338 | 7 | 7 | 0.02% | 0.08% |  |
| D | 38045 | 8337 | 135 | 135 | 0.35% | 1.62% |  |
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 | 128 | 534934 | 2677.22 | 981 | 960 | 199.5 |
| A | 0 | 226 | 9412 | 42.38 | 981 | 960 | 199.5 |
| A | 15 | 239 | 9359 | 42.11 | 981 | 960 | 199.5 |
| B | 11 | 51 | 89054 | 467.12 | 985 | 960 | 188.6 |
| B | 0 | 214 | 35568 | 183.51 | 985 | 960 | 188.6 |
| B | 12 | 111 | 19480 | 98.2 | 985 | 960 | 188.6 |
| C | 9 | 68 | 1366051 | 6210.07 | 953 | 959 | 219.8 |
| C | 1 | 16 | 9306 | 37.97 | 953 | 959 | 219.8 |
| C | 13 | 61 | 7481 | 29.67 | 953 | 959 | 219.8 |
| D | 2 | 244 | 483829 | 2063.26 | 955 | 927 | 234.0 |
| D | 2 | 152 | 469391 | 2001.58 | 955 | 927 | 234.0 |
| D | 2 | 14 | 322278 | 1373.02 | 955 | 927 | 234.0 |
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 |  |