1998 HN121

1998HN121, 1999 UK50, 1999UK50, 44152, J98HC1N, J99U50K

All data for this body: [vot]

MPC data
Name (number) 1998 HN121 (44152)
a 2.34485
e 0.11803
i / sin(i) 7.3830 / 0.12850
q 2.06808
Q 2.62162
ω 136.2170
Node 173.5266
m 115.8210
n 0.2745
Epoch 2460800.5
nobs 1913
nopp 20
Years observed 1998-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.344
ep 0.082
sin(ip) 0.130
G 0.150
H 15.600
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class V
Spectral Class Score 8.861
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3437 0.0816 0.1302 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.60 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S V 0.2226 0.3850 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V V DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
V V 0.3407 0.3850 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V V 0.8028 0.3850 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT