1998 HD46

1998HD46, 16945, 1978 TF5, 1978TF5, 1995 SU21, 1995SU21, J78T05F, J95S21U, J98H46D

All data for this body: [vot]

MPC data
Name (number) 1998 HD46 (16945)
a 3.20007
e 0.17479
i / sin(i) 2.0878 / 0.03643
q 2.64074
Q 3.75940
ω 4.8160
Node 85.7347
m 357.2395
n 0.1722
Epoch 2460800.5
nobs 3230
nopp 24
Years observed 1978-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.220
ep 0.146
sin(ip) 0.016
G 0.150
H 13.260
Mass
D 11.54 0.269
pV 0.053 0.0077
Value
Rotational Period 13.275
Period quality 2
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.8900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2202 0.1458 0.0159 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.50 1.410 1.410 Masiero 2012ApJ...759L...8M NEATM
11.54 0.274 0.274 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.053 0.0101 0.0101 Masiero 2011ApJ...741...68M NEATM
0.053 0.0120 0.0120 Masiero 2012ApJ...759L...8M 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
13.26 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
13.2759 2 Sidereal Durech 2023A&A...675A..24D Model