1999 NE21

1999NE21, 40360, J99N21E

All data for this body: [vot]

MPC data
Name (number) 1999 NE21 (40360)
a 2.31537
e 0.15594
i / sin(i) 4.6677 / 0.08138
q 1.95431
Q 2.67644
ω 7.7057
Node 343.4209
m 265.4937
n 0.2798
Epoch 2460200.5
nobs 1095
nopp 19
Years observed 1991-2023
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.315
ep 0.114
sin(ip) 0.083
Value Standard error
G 0.150
H 15.720
Mass
D 2.43 0.117
pV 0.273 0.0701
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.5200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3150 0.1140 0.0826 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.43 0.117 0.117 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.273 0.0701 0.0701 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
15.72 MPC-2023-12-04 MPC-2023-12-04 Phot