Observation information
- date-obs: 2017-10-22
- time-obs: 22:44:54.586800000
- date-end: 2017-10-23
- time-end: 01:03:23.589700000
- obs_id: A04_171T01_9000001634
- exposure: 4241.66467883
- sourceid: NGC 424
- observer: sachi
- ra_pnt: 17.86511
- dec_pnt: -38.08347
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_171T01_9000001634_11188cztM0_level2.evt
| modeM0/AS1A04_171T01_9000001634_11188cztM0_level2_quad_clean.evt
|
| Size (bytes) | 527,702,400 | 93,248,640 |
| Size | 503.3 MB
| 88.9 MB
|
| Events in quadrant A | 3,373,763 | 596,729 |
| Events in quadrant B | 4,138,972 | 615,774 |
| Events in quadrant C | 3,073,931 | 611,318 |
| Events in quadrant D | 4,958,267 | 550,809 |
Level1 data integrity
| 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 | 14042 | 3 |
| B | 0 | 16376 | 2 |
| C | 0 | 13211 | 2 |
| D | 0 | 19074 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6435 | 50 | 0.777001% |
| B | 6435 | 257 | 3.993784% |
| C | 6435 | 19 | 0.295260% |
| D | 6435 | 301 | 4.677545% |
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 | 7745 | 6436 | 16 | 16 | 0.21% | 0.25% |  |
| B | 7745 | 6436 | 127 | 127 | 1.64% | 1.97% |  |
| C | 7745 | 6436 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7745 | 6436 | 240 | 240 | 3.10% | 3.73% |  |
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 | 8 | 5 | 129357 | 816.37 | 785 | 770 | 157.5 |
| A | 14 | 238 | 93483 | 588.62 | 785 | 770 | 157.5 |
| A | 8 | 15 | 75560 | 474.83 | 785 | 770 | 157.5 |
| B | 4 | 239 | 895289 | 6017.64 | 794 | 774 | 148.6 |
| B | 0 | 229 | 46868 | 310.09 | 794 | 774 | 148.6 |
| B | 3 | 189 | 42866 | 283.16 | 794 | 774 | 148.6 |
| C | 0 | 10 | 17769 | 93.67 | 783 | 786 | 181.3 |
| C | 13 | 61 | 5760 | 27.44 | 783 | 786 | 181.3 |
| C | 14 | 234 | 4364 | 19.74 | 783 | 786 | 181.3 |
| D | 2 | 14 | 772265 | 4353.37 | 749 | 732 | 177.2 |
| D | 10 | 157 | 448304 | 2525.42 | 749 | 732 | 177.2 |
| D | 1 | 52 | 252713 | 1421.8 | 749 | 732 | 177.2 |
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 |  |