Table 2
Measurements of the MBC 324P using different apertures.
| UT date | Telescope(a) | N(b) | rh(c) | Δ(d) | α(e) | v(f) | mR(g) | HR(h) | Md (×106)(i) |
|---|---|---|---|---|---|---|---|---|---|
| 2010 Aug. 16 | PS1 | 4 | 2.631 | 1.795 | 15.1 | 12.8 | 18.7 ± 0.1 | 14.5 ± 0.2 | 100 ± 44 |
| 2010 Sep. 08 | PS1 | 3 | 2.641 | 1.739 | 12.0 | 18.4 | 18.40 ± 0.05 | 14.4 ± 0.1 | 112 ± 46 |
| 2010 Dec. 31 | INT | 11 | 2.732 | 2.782 | 20.5 | 45.7 | 19.2± 0.1 | 13.8 ± 0.2 | 193 ± 85 |
| 2011 Aug. 31 | GN | 6 | 3.072 | 3.238 | 18.2 | 95.9 | 24.3 ± 0.2 | 18.4 ± 0.2 | 0.0 ± 1.4 |
| 2015 Apr. 26 | CFHT | 2 | 2.764 | 2.442 | 21.1 | 307.5 | 22.6± 0.2 | 17.4 ± 0.2 | 4.3 ± 2.5 |
| 2015 May 16 | CFHT | 4 | 2.740 | 2.165 | 19.6 | 312.0 | 22.5 ± 0.1 | 17.6 ± 0.2 | 3.1 ± 2.1 |
| 2015 May 17 | CFHT | 2 | 2.739 | 2.152 | 19.5 | 312.3 | 22.4± 0.1 | 17.6 ± 0.2 | 3.1 ± 2.1 |
| 2015 May 21 | CFHT | 3 | 2.735 | 2.101 | 18.0 | 313.2 | 22.3 ± 0.1 | 17.5 ± 0.2 | 3.6 ± 2.3 |
| 2015 May 23 | CFHT | 3 | 2.732 | 2.076 | 18.6 | 313.6 | 22.2± 0.1 | 17.5 ± 0.2 | 3.6 ± 2.3 |
Notes. (a)Telescope. (b)Number of exposures taken.(c)Heliocentric distance in AU. (d)Geocentric distance in AU. (e)Solar phase angle (Sun-Target-Observer) in degrees. (f)True anomaly in degrees. (g)Apparent R-band magnitude measured with a 5″ aperture (2010 and 2011 data) and a 2″ aperture (2015 data). (h)Absolute R-band magnitude assuming IAU H-G phase function where G = 0.15 ± 0.12. (i)Estimated dust mass in kg assuming ρd ~ 2500 kg m−3. For comparison with published values (see text), the measurements listed here were obtained with a 5″ aperture for data in 2010 and 2011 and with a 2″ aperture for data in 2015. Data presented in this table represent the results of our own measurements. 2010 and 2011 datasets were previously published in Hsieh et al. (2012b), and 2015 datasets in Hsieh & Sheppard (2015).
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