Observation information
- date-obs: 2017-10-24
- time-obs: 00:59:54.633000000
- date-end: 2017-10-24
- time-end: 03:09:21.636700000
- obs_id: A04_171T01_9000001634
- exposure: 3815.73593397
- 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_11204cztM0_level2.evt
| modeM0/AS1A04_171T01_9000001634_11204cztM0_level2_quad_clean.evt
|
| Size (bytes) | 659,134,080 | 81,492,480 |
| Size | 628.6 MB
| 77.7 MB
|
| Events in quadrant A | 9,653,843 | 413,074 |
| Events in quadrant B | 3,573,741 | 546,463 |
| Events in quadrant C | 2,979,878 | 545,595 |
| Events in quadrant D | 3,320,254 | 514,342 |
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 | 33233 | 3 |
| B | 0 | 14735 | 2 |
| C | 0 | 13036 | 2 |
| D | 0 | 14162 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6412 | 2313 | 36.072988% |
| B | 6412 | 180 | 2.807236% |
| C | 6412 | 8 | 0.124766% |
| D | 6412 | 41 | 0.639426% |
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 | 7657 | 6413 | 1788 | 1788 | 23.35% | 27.88% |  |
| B | 7657 | 6413 | 95 | 95 | 1.24% | 1.48% |  |
| C | 7657 | 6413 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7657 | 6413 | 25 | 25 | 0.33% | 0.39% |  |
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 | 6510137 | 49929.74 | 646 | 634 | 130.4 |
| A | 8 | 15 | 449846 | 3445.58 | 646 | 634 | 130.4 |
| A | 8 | 5 | 132625 | 1012.41 | 646 | 634 | 130.4 |
| B | 4 | 239 | 406153 | 2787.32 | 769 | 749 | 145.4 |
| B | 4 | 80 | 80794 | 550.34 | 769 | 749 | 145.4 |
| B | 4 | 81 | 23560 | 156.84 | 769 | 749 | 145.4 |
| C | 13 | 61 | 5473 | 26.53 | 764 | 768 | 177.4 |
| C | 3 | 202 | 1871 | 6.22 | 764 | 768 | 177.4 |
| C | 7 | 159 | 1684 | 5.16 | 764 | 768 | 177.4 |
| D | 2 | 136 | 108916 | 608.44 | 746 | 726 | 177.8 |
| D | 14 | 34 | 100127 | 559.01 | 746 | 726 | 177.8 |
| D | 2 | 14 | 65877 | 366.4 | 746 | 726 | 177.8 |
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 |  |