1999 RF204

1999RF204, 1998 KZ20, 1998KZ20, 38407, J98K20Z, J99RK4F

All data for this body: [vot]

MPC data
Name (number) 1999 RF204 (38407)
a 2.80951
e 0.16018
i / sin(i) 7.9791 / 0.13881
q 2.35948
Q 3.25954
ω 61.4577
Node 255.0671
m 191.2371
n 0.2093
Epoch 2460800.5
nobs 1781
nopp 22
Years observed 1998-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.813
ep 0.133
sin(ip) 0.158
G 0.150
H 14.340
Mass
D 6.01 0.229
pV 0.123 0.0341
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 1.735
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion 0.6000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8130 0.1329 0.1578 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.01 0.229 0.229 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.123 0.0341 0.0341 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
14.34 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
D 0.12 Bus VIS Carvano 2010A&A...510A..43C PHOT
D D 0.2492 0.2492 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT