2001 HJ9

2001HJ9, 1999 BM18, 1999BM18, 48164, J99B18M, K01H09J

All data for this body: [vot]

MPC data
Name (number) 2001 HJ9 (48164)
a 3.06796
e 0.17202
i / sin(i) 13.7539 / 0.23775
q 2.54021
Q 3.59571
ω 279.6396
Node 52.0335
m 85.5031
n 0.1834
Epoch 2460800.5
nobs 2699
nopp 23
Years observed 1992-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.060
ep 0.140
sin(ip) 0.231
G 0.150
H 14.200
Mass
D 8.57 0.200
pV 0.055 0.0093
Value
Rotational Period 86.011
Period quality 2
Spectral Class B
Spectral Class Score 3.798
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0604 0.1404 0.2310 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.57 0.200 0.200 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.055 0.0093 0.0093 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
14.20 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
86.0116 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.633 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C 0.17 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.4512 0.4512 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT