Portlandia
00757, 1908 TG, 1908TG, 1912 YA, 1912YA, 1931 CF, 1931CF, J08T00G, J12Y00A, J31C00FAll data for this body: [vot]
MPC data
Name (number) | Portlandia (757) |
---|---|
a | 2.37358 |
e | 0.10806 |
i / sin(i) | 8.1720 / 0.14215 |
q | 2.11709 |
Q | 2.63007 |
ω | 44.0568 |
Node | 22.4317 |
m | 114.6048 |
n | 0.2695 |
Epoch | 2460200.5 |
nobs | 4128 |
---|---|
nopp | 46 |
Years observed | 1908-2023 |
rms | 0.59 |
Proper elements data
ap | ep | sin(ip) | Author | Reference | Method |
---|---|---|---|---|---|
2.3732 | 0.1107 | 0.1358 | Novakovic_Radovic_Todovic | 2003A&A...403.1165K | Numeric-Oct-2022 |
Diameter data
Value | Uncertainty up | Uncertainty down | Author | Reference | Method |
---|---|---|---|---|---|
26.81 | 1.222 | 1.222 | Ryan&Woodward | 2010AJ....140..933R | IRAS-STM |
32.09 | 1.400 | 1.400 | Tedesco | 2002AJ....123.1056T | STM |
32.78 | 6.560 | 6.560 | Ali-Lagoa | 2018A&A...612A..85A | NEATM |
32.80 | 0.500 | 0.500 | Hanus | 2018Icar..309..297H | RADIOMETRY_TPM |
32.89 | 0.240 | 0.240 | Masiero | 2014ApJ...791..121M | NEATM |
33.10 | 0.500 | 0.500 | Hanus | 2018Icar..309..297H | RADIOMETRY_TPM |
33.25 | 7.140 | 7.140 | Masiero | 2021PSJ.....2..162M | NEATM |
33.62 | 8.060 | 8.060 | Nugent | 2016AJ....152...63N | NEATM |
34.06 | 0.470 | 0.470 | Usui | 2011PASJ...63.1117U | NEATM |
36.70 | 2.272 | 2.272 | Masiero | 2011ApJ...741...68M | NEATM |
37.04 | 3.700 | 3.700 | Ali-Lagoa | 2018A&A...612A..85A | NEATM |
39.39 | 3.536 | 3.536 | Ryan&Woodward | 2010AJ....140..933R | IRAS-NEATM |
Albedo data
Value | Uncertainty up | Uncertainty down | Author | Reference | Method |
---|---|---|---|---|---|
0.099 | 0.0193 | 0.0193 | Ryan&Woodward | 2010AJ....140..933R | IRAS-NEATM |
0.110 | 0.0151 | 0.0151 | Masiero | 2011ApJ...741...68M | NEATM |
0.120 | 0.1400 | 0.1400 | Nugent | 2016AJ....152...63N | NEATM |
0.132 | 0.0260 | 0.0260 | Ali-Lagoa | 2018A&A...612A..85A | NEATM |
0.132 | 0.0500 | 0.0810 | Masiero | 2021PSJ.....2..162M | NEATM |
0.143 | 0.0140 | 0.0140 | Tedesco | 2002AJ....123.1056T | STM |
0.169 | 0.0680 | 0.0680 | Ali-Lagoa | 2018A&A...612A..85A | NEATM |
0.206 | 0.0187 | 0.0187 | Ryan&Woodward | 2010AJ....140..933R | IRAS-STM |
0.220 | 0.0200 | 0.0200 | Masiero | 2014ApJ...791..121M | NEATM |
G data
Value | Uncertainty up | Uncertainty down | Author | Reference | Method |
---|---|---|---|---|---|
0.15 | MPC-2023-12-94 | MPC-2023-12-94 | Phot |
H data
Value | Uncertainty up | Uncertainty down | Author | Reference | Method |
---|---|---|---|---|---|
10.10 | MPC-2023-12-04 | MPC-2023-12-04 | Phot |
Period data
Value | Uncertainty up | Uncertainty down | Author | Reference | Method |
---|---|---|---|---|---|
6.58 | Stephens | 2015MPBu...42..104S | Lightcurve | ||
6.58 | Lagerkvist | 1998A&AS..131...55L | Lightcurve | ||
6.58 | Hanus | 2016A&A...586A.108H | Model | ||
6.58 | Martikainen | 2021A&A...649A..98M | Model | ||
6.58 | Durech | LCDB | Model | ||
6.58 | Behrend | LCDB | Lightcurve |