Observation information
- date-obs: 2018-07-14
- time-obs: 18:31:10.306600000
- date-end: 2018-07-14
- time-end: 20:54:36.307100000
- obs_id: A04_148T03_9000002222
- exposure: 4817.24507037
- sourceid: NGC 581
- observer: shruthibhat
- ra_pnt: 23.34583
- dec_pnt: 60.65
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_148T03_9000002222_15107cztM0_level2.evt
| modeM0/AS1A04_148T03_9000002222_15107cztM0_level2_quad_clean.evt
|
| Size (bytes) | 505,494,720 | 95,486,400 |
| Size | 482.1 MB
| 91.1 MB
|
| Events in quadrant A | 3,167,863 | 617,411 |
| Events in quadrant B | 4,157,734 | 621,610 |
| Events in quadrant C | 4,480,335 | 605,725 |
| Events in quadrant D | 3,068,610 | 600,379 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13747 | 3 |
| B | 0 | 16804 | 2 |
| C | 0 | 17730 | 2 |
| D | 0 | 13708 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6401 | 67 | 1.046711% |
| B | 6401 | 260 | 4.061865% |
| C | 6401 | 350 | 5.467896% |
| D | 6401 | 60 | 0.937354% |
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 | 8607 | 6402 | 1 | 1 | 0.01% | 0.02% |  |
| B | 8607 | 6403 | 116 | 116 | 1.35% | 1.81% |  |
| C | 8607 | 6402 | 190 | 190 | 2.21% | 2.97% |  |
| D | 8607 | 6402 | 11 | 11 | 0.13% | 0.17% |  |
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 | 12 | 189 | 86299 | 534.05 | 795 | 777 | 160.1 |
| A | 9 | 143 | 10730 | 62.15 | 795 | 777 | 160.1 |
| A | 13 | 248 | 7694 | 43.19 | 795 | 777 | 160.1 |
| B | 3 | 64 | 581235 | 3942.72 | 789 | 770 | 147.2 |
| B | 10 | 245 | 318475 | 2157.96 | 789 | 770 | 147.2 |
| B | 3 | 209 | 35901 | 238.62 | 789 | 770 | 147.2 |
| C | 4 | 254 | 1010597 | 5763.21 | 766 | 771 | 175.2 |
| C | 3 | 233 | 464065 | 2644.08 | 766 | 771 | 175.2 |
| C | 4 | 238 | 12543 | 67.18 | 766 | 771 | 175.2 |
| D | 9 | 1 | 31952 | 164.33 | 779 | 754 | 189.8 |
| D | 2 | 120 | 28132 | 144.21 | 779 | 754 | 189.8 |
| D | 2 | 234 | 26547 | 135.86 | 779 | 754 | 189.8 |
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 |  |