1999 AN4

1999AN4, 16978, J99A04N

All data for this body: [vot]

MPC data
Name (number) 1999 AN4 (16978)
a 2.34015
e 0.23793
i / sin(i) 22.2454 / 0.37858
q 1.78337
Q 2.89693
ω 276.9000
Node 315.9225
m 45.4824
n 0.2753
Epoch 2460800.5
nobs 2952
nopp 22
Years observed 1982-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent Phocaea (25)
 
ap 2.340
ep 0.219
sin(ip) 0.403
G 0.150
H 14.340
Mass
D 4.02 0.024
pV 0.307 0.0159
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
6065 Chesneau -1 Chesneau -1.0000 Nesvorny 2024ApJS..274...25N HCM-2024
25 Phocaea 0 Phocaea Novakovic 2019EPSC...13.1671N HCM
25 Phocaea 701 Phocaea -0.5100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3404 0.2188 0.4029 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.82 0.030 0.030 Masiero 2014ApJ...791..121M NEATM
4.41 0.042 0.042 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.251 0.0261 0.0261 Masiero 2011ApJ...741...68M NEATM
0.340 0.0200 0.0200 Masiero 2014ApJ...791..121M 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
14.34 MPC-2023-12-04 MPC-2023-12-04 Phot