d'Alembert

05956, 1959 PA, 1959PA, 1968 QN, 1968QN, 1977 RB5, 1977RB5, 1986 VG9, 1986VG9, 1988 CF5, 1988CF5, J59P00A, J68Q00N, J77R05B, J86V09G, J88C05F

All data for this body: [vot]

MPC data
Name (number) d'Alembert (5956)
a 2.71194
e 0.29182
i / sin(i) 8.9731 / 0.15597
q 1.92055
Q 3.50332
ω 182.9183
Node 188.6011
m 234.2188
n 0.2207
Epoch 2460800.5
nobs 3871
nopp 28
Years observed 1959-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.712
ep 0.252
sin(ip) 0.145
G 0.150
H 13.220
Mass
D 12.27 0.114
pV 0.096 0.0153
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 11.708
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7123 0.2518 0.1449 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.28 0.114 0.114 Masiero 2011ApJ...741...68M NEATM
9.69 3.060 3.060 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.074 0.0630 0.0630 Masiero 2020PSJ.....1....5M NEATM
0.098 0.0158 0.0158 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.22 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C Bus VIS Bus 2002Icar..158..146B SPEC
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.168 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C B 0.740000 0.250000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
CX 0.54 Bus VIS Carvano 2010A&A...510A..43C PHOT
X X 0.6151 0.6151 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT