Elford

04974, 1952 HZ, 1952HZ, 1987 SN10, 1987SN10, 1990 LA, 1990LA, J52H00Z, J87S10N, J90L00A

All data for this body: [vot]

MPC data
Name (number) Elford (4974)
a 2.60547
e 0.10928
i / sin(i) 13.8049 / 0.23862
q 2.32073
Q 2.89021
ω 24.2418
Node 175.9874
m 3.8378
n 0.2344
Epoch 2460200.5
nobs 3479
nopp 27
Years observed 1952-2023
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.605
ep 0.157
sin(ip) 0.233
Value Standard error
G 0.150
H 12.900
Mass
D 8.22 0.062
pV 0.233 0.0349
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 502 Eunomia -0.6000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6047 0.1566 0.2334 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.32 1.490 1.490 Nugent 2016AJ....152...63N NEATM
8.22 0.062 0.062 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.200 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.238 0.0372 0.0372 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
12.90 MPC-2023-12-04 MPC-2023-12-04 Phot