Table 1
Aspect data and observing log.
| Date | Obs. time | r | Δ | α | λ | β | V | Mov | Exp | Filter | Telescope |
| YYYY-MM-DD | (UTC) | [AU] | [AU] | [°] | [°] | [°] | [mag] | [′′/min] | [s] | ||
|
|
|||||||||||
| 2008-10-08 | 04:50–05:47 | 1.072 | 0.081 | 26.2 | 42.1 | –8.8 | 16.7 | 4.3 | Spec | WHT | |
| 2011-09-15 | 19:16–19:35 | 1.1674 | 0.1799 | 24.0 | 327.2 | 12.5 | 18.7 | 1.5 | 60 | r | SALT |
| 2011-09-22 | 21:23–22:13 | 1.1432 | 0.1680 | 31.4 | 324.2 | 9.6 | 18.7 | 1.5 | 60 | g,r,i | SALT |
| 2011-09-26 | 03:56–04:08 | 1.1325 | 0.1636 | 35.0 | 323.1 | 8.0 | 18.7 | 1.5 | 60 | R | Kuiper |
| 2011-10-19 | 03:40–04:17 | 1.0654 | 0.1441 | 57.9 | 320.7 | –5.7 | 18.9 | 1.6 | 60 | V,R | Kuiper |
| 2011-10-21 | 03:35–03:46 | 1.0605 | 0.1429 | 59.5 | 321.0 | –7.1 | 19.0 | 1.7 | 60 | R | Kuiper |
| 2012-01-19 | 06:34–06:44 | 1.0871 | 0.1647 | 47.7 | 74.1 | –36.2 | 19.0 | 3.0 | 60 | R | Kuiper |
| 2012-01-26 | 07:36–07:43 | 1.1078 | 0.1841 | 44.3 | 82.1 | –31.4 | 19.2 | 2.8 | 30 | R | Kuiper |
| 2012-01-27 | 06:49–06:56 | 1.1107 | 0.1871 | 44.0 | 83.1 | –30.7 | 19.2 | 2.8 | 60 | R | Kuiper |
| 2012-02-23 | 05:16–05:27 | 1.2016 | 0.3032 | 40.1 | 104.2 | –15.4 | 20.3 | 1.9 | 60 | R | Kuiper |
| 2012-02-24 | 05:00–05:12 | 1.2051 | 0.3087 | 40.2 | 104.8 | –15.0 | 20.4 | 1.9 | 60 | R | Kuiper |
| 2012-03-28 | 04:31–04:45 | 1.3233 | 0.5348 | 42.7 | 124.1 | –5.2 | 21.8 | 1.5 | 60 | R | Kuiper |
Notes. r and Δ are the distances of the asteroid from the Sun and the Earth, respectively, α is the solar phase angle, while λ and β are the geocentric, ecliptic (J2000) longitude and latitude. In the next column an average brightness V of the asteroid, as predicted by the Horizons ephemeris service, is given. Starting from the ninth column, the table gives the asteroid movement on the sky (Mov), the exposure time (Exp), and the filters used (the abbrevation Spec denotes spectroscopic observations).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.