1998 HL149

1998HL149, 19489, 1999 RZ89, 1999RZ89, J98HE9L, J99R89Z

All data for this body: [vot]

MPC data
Name (number) 1998 HL149 (19489)
a 2.55513
e 0.11699
i / sin(i) 5.7603 / 0.10037
q 2.25620
Q 2.85406
ω 179.2368
Node 31.2938
m 241.7258
n 0.2413
Epoch 2460800.5
nobs 3114
nopp 22
Years observed 1991-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.553
ep 0.203
sin(ip) 0.093
G 0.150
H 14.060
Mass
D 4.73 0.061
pV 0.249 0.0222
Value
Rotational Period 2.710
Period quality 2
Spectral Class S
Spectral Class Score 5.992
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5525 0.2027 0.0934 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.52 0.229 0.229 Masiero 2011ApJ...741...68M NEATM
4.75 0.063 0.063 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.237 0.0318 0.0318 Masiero 2011ApJ...741...68M NEATM
0.261 0.0311 0.0311 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
14.06 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.714 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
2.714679 2 Sidereal Durech 2018A&A...617A..57D Model
2.71469 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 0.832 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT