Summary for : (134340) Pluto

DynT.TT.BT T.L B T.DDensity (g/cm^3)Δρ/ρDiameter (km)ΔD/DMass (kg)ΔM/MRefAvg.M
TNO--- | --1.82 ± 0.02   (A)1 %2390.0 ± 10.00.4 %1.30e+22 ± 7.00e+191 %SEVM
TNO--- | --1.82 ± 0.02   (A)1 %2390.0 ± 10.00.4 %1.30e+22 ± 7.00e+191 %Sw.avg
TNO-1.81 ± 0.02   (A)1 %2390.0 ± 10.00.4 %1.30e+22 ± 1.00e+201 %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)

Diameter estimates

DesignationDiameter / Err (km)ΔD/DMethodYearRefNχ2Use
(134340) Pluto2390.00 ± 10.000.4 % IAU2011D75 0.00 1

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).

IAU : IAU WGCCR consensus value.


EVM diam. average D = (2390.0 ± 10.00) km   (ΔD/D = 0%, SNR = 239.00) Derived bulk density ρ = (1.82 ± 0.02) g/cm3   (Δρ/ρ = 1%, SNR = 73.2)


References
D75(2011):Archinal, B.A., A'Hearn, M.F., Bowell, E., Conrad, A., Consolmagno, G.J., Courtin, R., Fukushima, T., Hestroffer, D., Hilton, J.L., Krasinsky, G.A., Neumann, G., Oberst, J., Seidelmann, P.K., Stooke, P., Tholen, D.J., Thomas, P.C., Williams, I.P., 2011. Report of the IAU Working Group on Cartographic Coordinates and Rotational Elements: 2009. Celestial Mechanics and Dynamical Astronomy 109, 101–135.

Mass estimates

DesignationMass / Err (kg)ΔM/MMethodYearRefNχ2Use
(134340) Pluto1.30e+22 ± 7.00e+191 %BinImg 2006M530.00 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).

BinImg : Binary imaged at optical wavelength.


EVM mass average M = (1.300 ± 0.007) × 1022 kg   (ΔM/M = 1%, SNR = 185.7) Derived bulk density ρ = (1.82 ± 0.02) g/cm3   (Δρ/ρ = 1%, SNR = 73.2)


References
M53(2006):Buie, M.W., Grundy, W.M., Young, E.F., Young, L.A., Stern, S.A., 2006. Orbits and Photometry of Pluto's Satellites: Charon, S/2005 P1, and S/2005 P2. Astronomical Journal 132, 290–298.