Observation information
- date-obs: 2017-01-25
- time-obs: 20:59:56.187600000
- date-end: 2017-01-25
- time-end: 23:12:29.185500000
- obs_id: A02_176T01_9000000980
- exposure: 5872.45305374
- sourceid: Maxi J1305-704
- observer: jayashreeroy
- ra_pnt: 196.7352
- dec_pnt: -70.45136
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_176T01_9000000980_07192cztM0_level2.evt
| modeM0/AS1A02_176T01_9000000980_07192cztM0_level2_quad_clean.evt
|
| Size (bytes) | 414,008,640 | 112,564,800 |
| Size | 394.8 MB
| 107.4 MB
|
| Events in quadrant A | 2,723,496 | 757,281 |
| Events in quadrant B | 2,953,121 | 778,960 |
| Events in quadrant C | 2,670,163 | 755,572 |
| Events in quadrant D | 3,789,881 | 704,734 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12205 | 2 |
| B | 0 | 12781 | 2 |
| C | 0 | 12042 | 2 |
| D | 0 | 15292 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5908 | 28 | 0.473934% |
| B | 5908 | 53 | 0.897089% |
| C | 5908 | 15 | 0.253893% |
| D | 5908 | 98 | 1.658768% |
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 | 7103 | 5909 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7103 | 5908 | 6 | 6 | 0.08% | 0.10% |  |
| C | 7103 | 5909 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7103 | 5909 | 73 | 73 | 1.03% | 1.24% |  |
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 | 14 | 238 | 28360 | 195.17 | 695 | 681 | 141.8 |
| A | 3 | 1 | 11777 | 78.24 | 695 | 681 | 141.8 |
| A | 13 | 14 | 7880 | 50.76 | 695 | 681 | 141.8 |
| B | 0 | 214 | 91056 | 675.12 | 709 | 694 | 133.8 |
| B | 0 | 219 | 51146 | 376.94 | 709 | 694 | 133.8 |
| B | 4 | 81 | 17277 | 123.9 | 709 | 694 | 133.8 |
| C | 1 | 3 | 11868 | 71.76 | 680 | 683 | 155.9 |
| C | 13 | 61 | 5342 | 29.89 | 680 | 683 | 155.9 |
| C | 8 | 222 | 3747 | 19.66 | 680 | 683 | 155.9 |
| D | 8 | 195 | 923493 | 5701.88 | 666 | 646 | 161.8 |
| D | 2 | 206 | 163376 | 1005.44 | 666 | 646 | 161.8 |
| D | 2 | 33 | 70082 | 429.02 | 666 | 646 | 161.8 |
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 |  |