1998 SH21

1998SH21, 2004 CD78, 2004CD78, H5758, J98S21H, K04C78D

All data for this body: [vot]

MPC data
Name (number) 1998 SH21 (175758)
a 2.38986
e 0.16006
i / sin(i) 2.6366 / 0.04600
q 2.00733
Q 2.77239
ω 191.1381
Node 28.1783
m 217.9247
n 0.2668
Epoch 2460800.5
nobs 547
nopp 18
Years observed 1998-2024
rms 0.88
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.389
ep 0.188
sin(ip) 0.041
G 0.150
H 16.920
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana -0.1600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3893 0.1875 0.0408 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
16.92 MPC-2023-12-04 MPC-2023-12-04 Phot