Songyuan

1997 JZ7, 1997JZ7, 1998 SC116, 1998SC116, 23686, J97J07Z, J98SB6C

All data for this body: [vot]

MPC data
Name (number) Songyuan (23686)
a 2.68763
e 0.17072
i / sin(i) 12.8415 / 0.22226
q 2.22879
Q 3.14648
ω 60.1730
Node 206.8127
m 329.6378
n 0.2237
Epoch 2460200.5
nobs 2226
nopp 21
Years observed 1997-2023
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.688
ep 0.172
sin(ip) 0.231
Value Standard error
G 0.150
H 13.920
Mass
D 5.09 0.103
pV 0.230 0.0259
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 502 Eunomia 0.4400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6875 0.1717 0.2313 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.07 0.107 0.107 Masiero 2011ApJ...741...68M NEATM
5.38 0.403 0.403 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.220 0.0337 0.0337 Masiero 2011ApJ...741...68M NEATM
0.243 0.0404 0.0404 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
13.92 MPC-2023-12-04 MPC-2023-12-04 Phot