1999 SJ12

1999SJ12, 1998 HF49, 1998HF49, 2000 XG43, 2000XG43, 40729, J98H49F, J99S12J, K00X43G

All data for this body: [vot]

MPC data
Name (number) 1999 SJ12 (40729)
a 2.36516
e 0.24736
i / sin(i) 24.6417 / 0.41694
q 1.78011
Q 2.95022
ω 233.2730
Node 51.9439
m 64.1054
n 0.2710
Epoch 2460800.5
nobs 3358
nopp 21
Years observed 1998-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent Phocaea (25)
 
ap 2.366
ep 0.249
sin(ip) 0.409
G 0.150
H 14.040
Mass
D 4.37 0.038
pV 0.376 0.0386
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 1.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
25 Phocaea 0 Phocaea Novakovic 2019EPSC...13.1671N HCM
25 Phocaea 701 Phocaea -0.3400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3660 0.2491 0.4092 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.88 0.070 0.070 Masiero 2014ApJ...791..121M NEATM
4.15 0.750 0.750 Masiero 2020PSJ.....1....5M NEATM
4.58 0.046 0.046 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.260 0.1030 0.1030 Masiero 2020PSJ.....1....5M NEATM
0.307 0.0577 0.0577 Masiero 2011ApJ...741...68M NEATM
0.490 0.0600 0.0600 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
14.04 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT