1998 HV121

1998HV121, 18716, 1999 NJ30, 1999NJ30, J98HC1V, J99N30J

All data for this body: [vot]

MPC data
Name (number) 1998 HV121 (18716)
a 3.02827
e 0.09629
i / sin(i) 10.9385 / 0.18976
q 2.73668
Q 3.31986
ω 239.7291
Node 116.1325
m 278.6962
n 0.1870
Epoch 2460800.5
nobs 3472
nopp 25
Years observed 1992-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.028
ep 0.047
sin(ip) 0.169
G 0.150
H 13.080
Mass
D 9.16 0.191
pV 0.111 0.0135
Value
Rotational Period 4.775
Period quality 2
Spectral Class K
Spectral Class Score 2.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos 0.0700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0284 0.0467 0.1694 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.16 0.191 0.191 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.111 0.0135 0.0135 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
13.08 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.77548 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
K X DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT