1997 YO21

1997YO21, 1991 PU30, 1991PU30, 1999 GU29, 1999GU29, 29523, J91P30U, J97Y21O, J99G29U

All data for this body: [vot]

MPC data
Name (number) 1997 YO21 (29523)
a 2.79424
e 0.09977
i / sin(i) 4.6525 / 0.08111
q 2.51547
Q 3.07301
ω 296.1251
Node 98.1794
m 243.1854
n 0.2110
Epoch 2460200.5
nobs 1431
nopp 21
Years observed 1977-2023
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Agnia (847)
 
ap 2.794
ep 0.073
sin(ip) 0.066
Value Standard error
G 0.150
H 14.960
Mass
D 2.93 0.738
pV 0.325 0.1711
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
847 Agnia 514 Agnia 0.3700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7943 0.0726 0.0655 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.93 0.738 0.738 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.325 0.1711 0.1711 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
14.96 MPC-2023-12-04 MPC-2023-12-04 Phot