Summary for : 10P/Tempel 2

DynT.TT.BT T.L B T.DDensity (g/cm^3)Δρ/ρDiameter (km)ΔD/DMass (kg)ΔM/MRefAvg.M
COM--- | --0.76 ± 0.46   (D)61 %9.6 ± 1.414.5 %3.50e+14 ± 1.50e+1443 %SEVM
COM--- | --0.76 ± 0.46   (D)61 %9.6 ± 1.414.5 %3.50e+14 ± 1.50e+1443 %Sw.avg
COM-0.75 ± 0.46   (D)61 %9.6 ± 1.414.5 %3.50e+14 ± 1.50e+1443 %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:

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
10P/Tempel 29.60 ± 1.3914.5 % H-mag2009D56 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).

H-mag : Crude estimate from absolute magnitude.


EVM diam. average D = (9.6 ± 1.39) km   (ΔD/D = 14%, SNR = 6.91) Derived bulk density ρ = (0.76 ± 0.46) g/cm3   (Δρ/ρ = 61%, SNR = 1.6)


References
D56(2009):Sosa, A., Fernández, J.A., 2009. Cometary masses derived from nongravitational forces. Monthly Notices of the Royal Astronomical Society 393, 192–214.

Mass estimates

DesignationMass / Err (kg)ΔM/MMethodYearRefNχ2Use
10P/Tempel 23.50e+14 ± 1.50e+1443 %CNGF 2009M850.00 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).

CNGF : Non-gravitational forces (comets).


EVM mass average M = (3.500 ± 1.500) × 1014 kg   (ΔM/M = 43%, SNR = 2.3) Derived bulk density ρ = (0.76 ± 0.46) g/cm3   (Δρ/ρ = 61%, SNR = 1.6)


References
M85(2009):Sosa, A., Fernández, J.A., 2009. Cometary masses derived from nongravitational forces. Monthly Notices of the Royal Astronomical Society 393, 192–214.