1998 HT149

1998HT149, 1999 VL8, 1999VL8, 35619, J98HE9T, J99V08L

All data for this body: [vot]

MPC data
Name (number) 1998 HT149 (35619)
a 2.77274
e 0.15227
i / sin(i) 9.4376 / 0.16397
q 2.35054
Q 3.19493
ω 264.5530
Node 43.2925
m 246.9118
n 0.2135
Epoch 2460800.5
nobs 4206
nopp 22
Years observed 1998-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.775
ep 0.130
sin(ip) 0.157
G 0.150
H 13.550
Mass
D 6.09 0.261
pV 0.274 0.0457
Value
Rotational Period 14.715
Period quality 2
Spectral Class S
Spectral Class Score 6.000
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 -0.2700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7745 0.1302 0.1566 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.09 0.261 0.261 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.274 0.0457 0.0457 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
13.55 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
14.7159 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT