Observation information
- date-obs: 2018-02-23
- time-obs: 17:46:17.626400000
- date-end: 2018-02-23
- time-end: 22:23:21.626300000
- obs_id: A04_216T01_9000001916
- exposure: 9188.92623704
- sourceid: Cen X-3
- observer: shivangi
- ra_pnt: 170.3158
- dec_pnt: -60.62297
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_216T01_9000001916_13021cztM0_level2.evt
| modeM0/AS1A04_216T01_9000001916_13021cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,157,097,600 | 175,210,560 |
| Size | 1.1 GB
| 167.1 MB
|
| Events in quadrant A | 8,010,542 | 1,142,873 |
| Events in quadrant B | 10,972,338 | 948,066 |
| Events in quadrant C | 6,450,952 | 1,139,882 |
| Events in quadrant D | 8,631,392 | 1,076,768 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 296 | 0 |
| B | 0 | 296 | 0 |
| C | 0 | 296 | 0 |
| D | 0 | 296 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33488 | 4 |
| B | 0 | 42196 | 3 |
| C | 0 | 29283 | 3 |
| D | 0 | 35818 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 14449 | 430 | 2.975984% |
| B | 14449 | 2220 | 15.364385% |
| C | 14449 | 47 | 0.325282% |
| D | 14449 | 469 | 3.245899% |
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 | 16625 | 14454 | 225 | 225 | 1.35% | 1.56% |  |
| B | 16625 | 14453 | 1527 | 1527 | 9.18% | 10.57% |  |
| C | 16625 | 14454 | 4 | 4 | 0.02% | 0.03% |  |
| D | 16625 | 14454 | 314 | 314 | 1.89% | 2.17% |  |
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 | 223 | 749423 | 2228.92 | 1666 | 1633 | 335.5 |
| A | 15 | 239 | 314733 | 933.25 | 1666 | 1633 | 335.5 |
| A | 12 | 189 | 284940 | 844.45 | 1666 | 1633 | 335.5 |
| B | 4 | 239 | 4653483 | 16515.4 | 1489 | 1451 | 281.7 |
| B | 3 | 64 | 268990 | 949.8 | 1489 | 1451 | 281.7 |
| B | 0 | 219 | 95482 | 333.82 | 1489 | 1451 | 281.7 |
| C | 14 | 234 | 35474 | 88.99 | 1642 | 1649 | 380.1 |
| C | 13 | 61 | 11854 | 26.85 | 1642 | 1649 | 380.1 |
| C | 8 | 222 | 7491 | 15.37 | 1642 | 1649 | 380.1 |
| D | 1 | 52 | 2252985 | 5852.19 | 1603 | 1552 | 384.7 |
| D | 8 | 195 | 249663 | 644.92 | 1603 | 1552 | 384.7 |
| D | 2 | 234 | 53875 | 136.0 | 1603 | 1552 | 384.7 |
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 |  |