1999 RT21

1999RT21, 74615, J99R21T

All data for this body: [vot]

MPC data
Name (number) 1999 RT21 (74615)
a 2.41162
e 0.19858
i / sin(i) 2.2691 / 0.03959
q 1.93272
Q 2.89052
ω 246.3269
Node 99.5015
m 152.6891
n 0.2632
Epoch 2460200.5
nobs 750
nopp 18
Years observed 1994-2023
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Massalia (20)
 
ap 2.412
ep 0.162
sin(ip) 0.023
Value Standard error
G 0.150
H 16.360
Mass
D
pV
Rotational Period
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
20 Massalia 404 Massalia 0.0900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4119 0.1615 0.0228 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
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
16.36 MPC-2023-12-04 MPC-2023-12-04 Phot