Observation information
- date-obs: 2017-10-23
- time-obs: 17:53:14.621100000
- date-end: 2017-10-23
- time-end: 20:11:33.624300000
- obs_id: A04_171T01_9000001634
- exposure: 4534.81238154
- 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_11200cztM0_level2.evt
| modeM0/AS1A04_171T01_9000001634_11200cztM0_level2_quad_clean.evt
|
| Size (bytes) | 566,075,520 | 90,377,280 |
| Size | 539.9 MB
| 86.2 MB
|
| Events in quadrant A | 5,085,863 | 573,676 |
| Events in quadrant B | 4,006,208 | 591,809 |
| Events in quadrant C | 2,909,687 | 581,397 |
| Events in quadrant D | 4,701,257 | 536,019 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19464 | 3 |
| B | 0 | 16148 | 2 |
| C | 0 | 13277 | 2 |
| D | 0 | 18391 | 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 | 6514 | 228 | 3.500154% |
| B | 6514 | 240 | 3.684372% |
| C | 6514 | 9 | 0.138164% |
| D | 6514 | 272 | 4.175622% |
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 | 7649 | 6515 | 193 | 193 | 2.52% | 2.96% |  |
| B | 7649 | 6515 | 130 | 130 | 1.70% | 2.00% |  |
| C | 7649 | 6515 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7649 | 6515 | 226 | 226 | 2.95% | 3.47% |  |
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 | 1450577 | 9269.92 | 766 | 750 | 156.4 |
| A | 8 | 15 | 442281 | 2823.07 | 766 | 750 | 156.4 |
| A | 8 | 5 | 184490 | 1174.8 | 766 | 750 | 156.4 |
| B | 4 | 239 | 788501 | 5314.48 | 772 | 753 | 148.2 |
| B | 15 | 204 | 85643 | 572.7 | 772 | 753 | 148.2 |
| B | 3 | 189 | 55341 | 368.27 | 772 | 753 | 148.2 |
| C | 13 | 61 | 5501 | 27.34 | 746 | 750 | 173.8 |
| C | 3 | 202 | 1817 | 6.14 | 746 | 750 | 173.8 |
| C | 7 | 159 | 1721 | 5.59 | 746 | 750 | 173.8 |
| D | 13 | 152 | 748155 | 4293.45 | 723 | 704 | 174.1 |
| D | 10 | 253 | 491518 | 2819.3 | 723 | 704 | 174.1 |
| D | 1 | 52 | 273515 | 1567.06 | 723 | 704 | 174.1 |
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 |  |