Table 3
Summary of the measurements of the offset of photocenter.
SDSS J121855.80+020002.1, z = 0.327, MAG |
||||
| date | days | ΔRA ± σ | ΔDE ± σ | ΔMAGR ± σ |
| (mas) | (mas) | (10-1) | ||
|
|
||||
| 2008.016 | 0.0 | –11 ± 3 | –3 ± 2 | –0.420 ± 0.009 |
| 2008.163 | 53.4 | +15 ± 3 | + 4 ± 2 | +0.134 ± 0.007 |
| 2008.263 | 36.8 | + 6 ± 2 | –3 ± 1 | –0.917 ± 0.011 |
| 2008.415 | 55.4 | –4 ± 1 | + 1 ± 1 | +1.774 ± 0.012 |
| 2008.970 | 202.7 | –8 ± 1 | + 4 ± 1 | –1.773 ± 0.007 |
| 2009.382 | 150.5 | 0 ± 4 | –3 ± 2 | +2.070 ± 0.011 |
|
|
||||
SDSS J162011.28+172427.5, z = 0.112, MAGR = 16 2 |
||||
| date | days | ΔRA ± σ | ΔDE ± σ | ΔMAGR ± σ |
| (mas) | (mas) | (10-1) | ||
|
|
||||
| 2007.277 | 0.0 | –17 ± 10 | +24 ± 22 | –0.136 ± 0.007 |
| 2007.430 | 58.8 | + 2 ± 9 | 0 ± 24 | +0.032 ± 0.007 |
| 2008.415 | 356.9 | +14 ± 6 | + 4 ± 21 | +0.021 ± 0.006 |
| 2008.647 | 84.9 | –23 ± 8 | –59 ± 16 | +0.002 ± 0.005 |
| 2009.181 | 195.1 | +76 ± 19 | +36 ± 15 | +0.550 ± 0.023 |
| 2009.382 | 73.3 | –47 ± 18 | –58 ± 22 | –0.560 ± 0.023 |
Notes. The columns in Table are: Col. 1 – the mean epoch of observation; Col. 2 – the time interval in days between each measurement; Col. 3 – the X-direction (basically RA) astrometric variation in mas from the previous measurement; Col. 4 – the Y-direction (basically DEC) astrometric variation in mas from the previous measurement; Col. 5 – the magnitude variation given in tenths of magnitude from the previous measurement. In the first lines, the values correspond to the offsets to the nominal CDS references. In the subsequent lines, we present the offsets to the previous line values. The combined corresponding errors (σ) are given.
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