Summary for : (223) Rosa

DynT.TT.BT T.L B T.DDensity (g/cm^3)Δρ/ρDiameter (km)ΔD/DMass (kg)ΔM/MRefAvg.M
MBAX-X | Xc-1.38 ± 0.56   (C)41 %84.5 ± 8.09.5 %4.35e+17 ± 1.26e+1729 %SEVM
MBAX-X | Xc-1.34 ± 0.62   (C)46 %82.7 ± 7.99.6 %3.97e+17 ± 1.44e+1736 %Sw.avg

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
(223) Rosa87.61 (+4.40 / -4.40)5.0 % / 5.0 % STM2002D125 0.50 1
(223) Rosa89.37 (+3.53 / -3.53)3.9 % / 3.9 % STM2010D64 1.91 2
(223) Rosa88.50 (+3.79 / -3.79)4.3 % / 4.3 % NEATM2010D64 1.12 3
(223) Rosa80.93 (+1.46 / -1.46)1.8 % / 1.8 % NEATM2011D83 5.96 4
(223) Rosa83.39 (+2.97 / -2.97)3.6 % / 3.6 % NEATM2011D72 0.14 5
(223) Rosa109.16 (+0.95 / -0.95)0.9 % / 0.9 % NEATM2012D1262 674.17 6
(223) Rosa79.81 (+0.31 / -0.31)0.4 % / 0.4 % NEATM2014D1242 228.25 7
(223) Rosa72.33 (+20.18 / -20.18)27.9 % / 27.9 % NEATM2016D121 0.36 8
(223) Rosa90.43 (+20.33 / -20.33)22.5 % / 22.5 % NEATM2016D121 0.09 9
(223) Rosa76.46 (+29.36 / -29.36)38.4 % / 38.4 % NEATM2017D122 0.07 10
(223) Rosa79.68 (+33.85 / -33.85)42.5 % / 42.5 % NEATM2020D123 0.02 11
(223) Rosa86.05 (+26.43 / -26.43)30.7 % / 30.7 % NEATM2020D123 0.00 12
(223) Rosa69.00 (+9.00 / -3.00)13.0 % / 4.3 % CITPM2021D127 6.67 13
(223) Rosa70.00 (+6.00 / -2.00)8.6 % / 2.9 % CITPM2021D127 13.13 14

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).
3: Values with asymmetric errors are currently just diplayed but disabled (unchecked) for the average calculation.

CITPM : Convex Inversion Thermophysical Model (LCI+TPM). NEATM : Near-Earth Asteroid Thermal Model. STM : Standard Thermal Model.


EVM diam. average D = (84.5 ± 8.02) km   (ΔD/D = 9%, SNR = 10.53) Derived bulk density ρ = (1.38 ± 0.56) g/cm3   (Δρ/ρ = 41%, SNR = 2.5)


References
D64(2010):Ryan, E.L., Woodward, C.E., 2010. Rectified Asteroid Albedos and Diameters from IRAS and MSX Photometry Catalogs. Astronomical Journal 140, 933–943.
D72(2011):Masiero, J.R., Mainzer, A.K., Grav, T., Bauer, J.M., Cutri, R.M., Dailey, J., Eisenhardt, P.R.M., McMillan, R.S., Spahr, T.B., Skrutskie, M.F., Tholen, D., Walker, R.G., Wright, E.L., DeBaun, E., Elsbury, D., Gautier, IV, T., Gomillion, S., Wilkins, A., 2011. Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters. Astrophysical Journal 741, 68.
D83(2011):Usui, F., Kuroda, D., Müller, T.G., Hasegawa, S., Ishiguro, M., Ootsubo, T., Ishihara, D., Kataza, H., Takita, S., Oyabu, S., Ueno, M., Matsuhara, H., Onaka, T., 2011. Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey. Publications of the Astronomical Society of Japan 63, 1117–1138.
D121(2016):Nugent, C. R., Mainzer, A., Bauer, J., et al. 2016, The Astronomical Journal, 152, 63
D122(2017):Masiero, J. R., Nugent, C., Mainzer, A. K., et al. 2017, AJ, 154, 168
D123(2020):Masiero, J. R., Mainzer, A. K., Bauer, J. M., et al. 2020, Planet. Sci. J., 1, 5
D124(2014):Masiero, J. R., Grav, T., Mainzer, A. K., et al. 2014, ApJ, 791, 121
D125(2002):Tedesco, E. F., Noah, P. V., Noah, M., & Price, S. D. 2002, AJ, 123, 1056
D126(2012):Masiero, J. R., Mainzer, A. K., Grav, T., et al. 2012, ApJL, 759, L8
D127(2021):Marciniak, A., Durech, J., Ali-Lagoa, V., et al. 2021, A&A, 654, A87

Mass estimates

DesignationMass / Err (kg)ΔM/MMethodYearRefNχ2Use
(223) Rosa5.98e+17 ± 2.97e+1750 %Ephem 2019M1260.30 1
(223) Rosa3.62e+17 ± 1.25e+1735 %Deflec 2022M1370.34 2

plot, average mass and derived density

All

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).

Deflec : Orbital deflection (close encounter) of one or several test asteroids (classical LSQ). Ephem : Planetary ephemeris solution.


EVM mass average M = (4.353 ± 1.263) × 1017 kg   (ΔM/M = 29%, SNR = 3.4) Derived bulk density ρ = (1.38 ± 0.56) g/cm3   (Δρ/ρ = 41%, SNR = 2.5)


References
M126(2019):Fienga, A., et. al, 2019. INPOP19a planetary ephemeris. Notes Scientifiques et Techniques de l'Institut de mécanique céleste,
M137(2022):Kretlow, M., 2022. An astrometric mass estimate for asteroid (223) Rosa . Astronomy & Astrophysics, Volume 668, id.A141, 6 pp. Bibcode: https://ui.adsabs.harvard.edu/abs/2022A&A...668A.141K