Observation information
- date-obs: 2017-05-14
- time-obs: 23:09:51.529900000
- date-end: 2017-05-15
- time-end: 01:30:42.056400000
- obs_id: A03_135T01_9000001226
- exposure: 5343.61897574
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_135T01_9000001226_08805cztM0_level2.evt
| modeM0/AS1A03_135T01_9000001226_08805cztM0_level2_quad_clean.evt
|
| Size (bytes) | 586,330,560 | 106,188,480 |
| Size | 559.2 MB
| 101.3 MB
|
| Events in quadrant A | 4,080,128 | 682,175 |
| Events in quadrant B | 4,512,432 | 671,308 |
| Events in quadrant C | 3,615,800 | 668,637 |
| Events in quadrant D | 5,008,100 | 639,606 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 166 | 0 |
| B | 0 | 166 | 0 |
| C | 0 | 166 | 0 |
| D | 0 | 166 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17203 | 7 |
| B | 0 | 18843 | 4 |
| C | 0 | 16429 | 2 |
| D | 0 | 20295 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7974 | 113 | 1.417106% |
| B | 7975 | 264 | 3.310345% |
| C | 7976 | 31 | 0.388666% |
| D | 7976 | 300 | 3.761284% |
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 | 8451 | 7979 | 4 | 4 | 0.05% | 0.05% |  |
| B | 8451 | 7979 | 100 | 100 | 1.18% | 1.25% |  |
| C | 8451 | 7979 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8451 | 7980 | 171 | 171 | 2.02% | 2.14% |  |
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 | 330025 | 1675.96 | 956 | 932 | 196.4 |
| A | 13 | 251 | 53119 | 265.77 | 956 | 932 | 196.4 |
| A | 5 | 16 | 13131 | 62.13 | 956 | 932 | 196.4 |
| B | 10 | 16 | 411192 | 2252.45 | 949 | 925 | 182.1 |
| B | 5 | 255 | 168032 | 917.45 | 949 | 925 | 182.1 |
| B | 4 | 48 | 74534 | 404.13 | 949 | 925 | 182.1 |
| C | 1 | 16 | 15134 | 65.63 | 921 | 923 | 216.5 |
| C | 13 | 61 | 7089 | 28.48 | 921 | 923 | 216.5 |
| C | 14 | 67 | 3693 | 12.79 | 921 | 923 | 216.5 |
| D | 2 | 16 | 1236345 | 5206.29 | 905 | 881 | 237.3 |
| D | 5 | 233 | 68282 | 284.03 | 905 | 881 | 237.3 |
| D | 7 | 71 | 63442 | 263.63 | 905 | 881 | 237.3 |
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 |  |