1998XP21

2001XQ259, 2004RP33, C0990, J98X21P, K01XP9Q, K04R33P

All data for this body: [vot]

MPC data
Name (number) 1998XP21 (120990)
Packed designation C0990
a 2.24619
e 0.09479
i / sin(i) 5.4753 / 0.09542
q 2.03328
Q 2.45909
ω 340.1611
Node 105.9579
m 326.1662
n 0.2928
Epoch 2459600.5
nobs 549
nopp 16
Years observed 1991-2021
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.246
ep 0.125
sin(ip) 0.087
Value Standard error
G 0.150
H 16.780
Mass
D
pV
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.1100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2464 0.1248 0.0871 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.78 MPC-2022-01-18 MPC-2022-01-18 Phot