1998 FN138

1998FN138, 1999 TW271, 1999TW271, 74017, J98FD8N, J99TR1W

All data for this body: [vot]

MPC data
Name (number) 1998 FN138 (74017)
a 2.63745
e 0.31011
i / sin(i) 30.6671 / 0.51005
q 1.81954
Q 3.45535
ω 301.4515
Node 5.6883
m 31.7201
n 0.2301
Epoch 2460800.5
nobs 683
nopp 18
Years observed 1998-2025
rms 0.82
Best values
[raw, vot]

Value Standard error
Parent Barcelona (945)
 
ap 2.638
ep 0.229
sin(ip) 0.514
G 0.150
H 15.230
Mass
D 2.50 0.706
pV 0.235 0.1488
Value
Rotational Period 3.645
Period quality 2
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
945 Barcelona 0 Barcelona Novakovic 2019EPSC...13.1671N HCM
945 Barcelona 805 Barcelona 0.0300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6382 0.2288 0.5143 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.50 0.706 0.706 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.235 0.1488 0.1488 Masiero 2017AJ....154..168M 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
15.23 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.64472 2 Sidereal Durech 2023A&A...675A..24D Model