1997 AN4

1997AN4, 13187, 1991 NL7, 1991NL7, 1995 UX49, 1995UX49, J91N07L, J95U49X, J97A04N

All data for this body: [vot]

MPC data
Name (number) 1997 AN4 (13187)
a 2.26798
e 0.13835
i / sin(i) 0.9711 / 0.01695
q 1.95421
Q 2.58175
ω 312.3540
Node 285.5698
m 7.4006
n 0.2886
Epoch 2460800.5
nobs 2651
nopp 23
Years observed 1991-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.268
ep 0.155
sin(ip) 0.028
G 0.150
H 15.300
Mass
D 3.73 0.185
pV 0.097 0.0209
Value
Rotational Period 12.900
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2680 0.1550 0.0281 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.66 0.197 0.197 Masiero 2011ApJ...741...68M NEATM
4.01 0.920 0.920 Masiero 2020PSJ.....1....5M NEATM
4.07 0.980 0.980 Nugent 2016AJ....152...63N NEATM
4.50 1.360 1.360 Masiero 2020PSJ.....1....5M NEATM
5.11 1.350 1.350 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.068 0.0650 0.0650 Masiero 2012ApJ...759L...8M NEATM
0.070 0.0600 0.0600 Nugent 2016AJ....152...63N NEATM
0.095 0.0660 0.0660 Masiero 2020PSJ.....1....5M NEATM
0.100 0.0510 0.0510 Masiero 2020PSJ.....1....5M NEATM
0.110 0.0293 0.0293 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
15.30 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.97 2 Synodic Chang 2015ApJS..219...27C Lightcurve