Summary for : (35107) 1991 VH

DynT.TT.BT T.L B T.DDensity (g/cm^3)Δρ/ρDiameter (km)ΔD/DMass (kg)ΔM/MRefAvg.M
NEA-Sk- | -Sq1.85 ± 0.61   (C)33 %1.1 ± 0.110.5 %1.40e+12 ± 1.40e+1110 %SEVM
NEA-Sk- | -Sq1.83 ± 0.19   (B)10 %1.1 ± 0.01.0 %1.40e+12 ± 1.40e+1110 %Sw.avg
NEASq1.50 ± 0.50   (C)33 %1.1 ± 0.00.9 %1.40e+12 ± 1.40e+1110 %C?

Average asteroid densities (g/cm^3):
C = 1.3 ± 0.6, B = 2.4 ± 0.5, S = 2.7 ± 0.5, M = 3.5 ± 1.0, P = 2.8 ± 1.6, X = 1.9 ± 0.8, Xc = 4.9 ± 0.9, Xk = 4.2 ± 0.7 (Ref)

Additional resources:
3D Model | JPL New Horizons | Minor Planet Center | Wikipedia (these auto-generated links might not work)

Note: The density estimates have been ranked from (A) to (E), corresponding to the relative error: (B) less than 20%, (C) between 20 and 50%, (D) between 50 and 100%, and (E) more than 100%. (A) stands for (presumably) reliable estimates (accuracy better than 20%), based on more than 5 mass estimates and 5 diameter estimates, or a spacecraft encounter. Apparently unrealistic densities (ρ > 8) are tagged with (X).

EVM: average by using the Expected Value Method (Ref). w.avg: weighted average (with w = 1/err^2).

T.T: Tholen Tax Class. T.B: Bus & Binzel Tax Class. T T.L: S3OS2 Lazarro (Tholen) Tax Class. T.L B: S3OS2 Lazarro (Bus & Binzel) Tax Class. T.D: DeMeo Tax Class.

Ref: S = SiMDA, C = Carry (2012)

(Indirect) density estimates

Density (g/cm^3)Δρ/ρMethodYearRefN
1.4 ± 0.5035.7 %PheMu2006BD7
1.6 ± 0.5031.3 %PheMu2006BD7

PheMu : Mutual eclipsing phenomena in binary systems.
References
BD7(2006):Pravec, P., Scheirich, P., Kusnirak, P., Sarounova, L., et al., 2006. Photometric survey of binary near-Earth asteroids. Icarus 181, 63-93.

Diameter estimates

DesignationDiameter / Err (km)ΔD/DMethodYearRefNχ2Use
(35107) 1991 VH1.14 ± 0.119.6 % PheMu2006D31 0.01 1
(35107) 1991 VH1.12 ± 0.2118.7 % NEATM2011D71 0.00 2

plot, average diameter and derived density

All

Notes (N):
1: This estimate is discarded for the average diameter (and derived density) calculation in Carry (2012).
2: This estimate is discarded for the average diameter (and derived density) calculation in SiMDA (catalog).

NEATM : Near-Earth Asteroid Thermal Model. PheMu : Mutual eclipsing phenomena in binary systems.


EVM diam. average D = (1.1 ± 0.12) km   (ΔD/D = 10%, SNR = 9.56) Derived bulk density ρ = (1.85 ± 0.61) g/cm3   (Δρ/ρ = 33%, SNR = 3.0)


References
D31(2006):Pravec, P., Scheirich, P., Kušnirák, P., Šarounová, L., Mottola, S., Hahn, G., Brown, P.G., Esquerdo, G.A., Kaiser, N., Krzeminski, Z., Pray, D.P., Warner, B.D., Harris, A.W., Nolan, M.C., Howell, E.S., Benner, L.A.M., Margot, J.L., Galád, A., Holliday, W., Hicks, M.D., Krugly, Y.N., Tholen, D.J., Whiteley, R.J., Marchis, F., Degraff, D.R., Grauer, A., Larson, S., Velichko, F.P., Cooney, W.R., Stephens, R., Zhu, J., Kirsch, K., Dyvig, R., Snyder, L., Reddy, V., Moore, S., Gajdoš, Š., Világi, J., Masi, G., Higgins, D., Funkhouser, G., Knight, B., Slivan, S.M., Behrend, R., Grenon, M., Burki, G., Roy, R., Demeautis, C., Matter, D., Waelchli, N., Revaz, Y., Klotz, A., Rieugné, M., Thierry, P., Cotrez, V., Brunetto, L., Kober, G., 2006. Photometric survey of binary near-Earth asteroids. Icarus 181, 63–93.
D71(2011):Mueller, M., Delbo, M., Hora, J.L., Trilling, D.E., Bhattacharya, B., Bottke, W.F., Chesley, S., Emery, J.P., Fazio, G., Harris, A.W., Mainzer, A., Mommert, M., Penprase, B., Smith, H.A., Spahr, T.B., Stansberry, J.A., Thomas, C.A., 2011. ExploreNEOs. III. Physical Characterization of 65 Potential Spacecraft Target Asteroids. Astronomical Journal 141, 109.

Mass estimates

DesignationMass / Err (kg)ΔM/MMethodYearRefNχ2Use
(35107) 1991 VH1.40e+12 ± 1.40e+1110 %BinRad 2012M1080.00 1

Notes (N):
1: This estimate is discarded for the average mass (and derived density) calculation in Carry (2012).
2: This estimate is discarded for the average mass (and derived density) calculation in SiMDA (catalog).
3: This estimate is an average of individual solutions listed before under the same reference (e.g. M125).

BinRad : Binary imaged with radar.


EVM mass average M = (1.400 ± 0.140) × 1012 kg   (ΔM/M = 10%, SNR = 10.0) Derived bulk density ρ = (1.85 ± 0.61) g/cm3   (Δρ/ρ = 33%, SNR = 3.0)


References
M108(2012):Reference citation is missing in Carry 2012 paper !!