1999 NY21

1999NY21, 1991 FC7, 1991FC7, 1996 TZ17, 1996TZ17, 40362, J91F07C, J96T17Z, J99N21Y

All data for this body: [vot]

MPC data
Name (number) 1999 NY21 (40362)
a 2.41555
e 0.16469
i / sin(i) 2.3405 / 0.04084
q 2.01774
Q 2.81336
ω 253.8235
Node 6.3821
m 336.9179
n 0.2625
Epoch 2460800.5
nobs 1709
nopp 22
Years observed 1991-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.418
ep 0.171
sin(ip) 0.044
G 0.150
H 15.730
Mass
D 2.23 0.335
pV 0.245 0.0919
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 -0.0500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4184 0.1705 0.0442 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.23 0.335 0.335 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.245 0.0919 0.0919 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
15.73 MPC-2023-12-04 MPC-2023-12-04 Phot