Observation information
- date-obs: 2017-01-12
- time-obs: 12:42:54.882100000
- date-end: 2017-01-12
- time-end: 14:49:43.882700000
- obs_id: T01_151T01_9000000960
- exposure: 5214.69743703
- sourceid: ngc1275
- observer: varsha
- ra_pnt: 49.95067
- dec_pnt: 41.5117
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_151T01_9000000960_06993cztM0_level2.evt
| modeM0/AS1T01_151T01_9000000960_06993cztM0_level2_quad_clean.evt
|
| Size (bytes) | 444,343,680 | 101,603,520 |
| Size | 423.8 MB
| 96.9 MB
|
| Events in quadrant A | 3,150,244 | 662,434 |
| Events in quadrant B | 3,357,592 | 664,814 |
| Events in quadrant C | 3,041,376 | 648,121 |
| Events in quadrant D | 3,450,791 | 633,461 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13840 | 2 |
| B | 0 | 14233 | 1 |
| C | 0 | 13726 | 1 |
| D | 0 | 14408 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6719 | 127 | 1.890162% |
| B | 6719 | 118 | 1.756214% |
| C | 6719 | 84 | 1.250186% |
| D | 6719 | 110 | 1.637148% |
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 | 7609 | 6720 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7609 | 6720 | 1 | 1 | 0.01% | 0.01% |  |
| C | 7609 | 6720 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7609 | 6720 | 9 | 9 | 0.12% | 0.13% |  |
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 | 234 | 13526 | 77.26 | 809 | 791 | 164.8 |
| A | 13 | 248 | 12537 | 71.26 | 809 | 791 | 164.8 |
| A | 0 | 226 | 7883 | 43.02 | 809 | 791 | 164.8 |
| B | 0 | 214 | 75129 | 484.33 | 808 | 788 | 153.5 |
| B | 0 | 219 | 69039 | 444.65 | 808 | 788 | 153.5 |
| B | 15 | 54 | 16551 | 102.69 | 808 | 788 | 153.5 |
| C | 13 | 61 | 6024 | 29.31 | 777 | 781 | 178.9 |
| C | 7 | 247 | 4366 | 20.04 | 777 | 781 | 178.9 |
| C | 1 | 16 | 3946 | 17.69 | 777 | 781 | 178.9 |
| D | 8 | 195 | 278358 | 1417.19 | 791 | 766 | 195.9 |
| D | 2 | 33 | 55425 | 279.05 | 791 | 766 | 195.9 |
| D | 2 | 14 | 31095 | 154.84 | 791 | 766 | 195.9 |
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 |  |