1999 JH54

1999JH54, 2000 UU85, 2000UU85, 35829, J99J54H, K00U85U

All data for this body: [vot]

MPC data
Name (number) 1999 JH54 (35829)
a 2.57334
e 0.17147
i / sin(i) 11.3503 / 0.19681
q 2.13208
Q 3.01459
ω 239.5553
Node 54.3433
m 62.7569
n 0.2388
Epoch 2460800.5
nobs 743
nopp 22
Years observed 1996-2025
rms 0.90
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.574
ep 0.152
sin(ip) 0.183
G 0.150
H 15.580
Mass
D 3.51 0.728
pV 0.109 0.0251
Value
Rotational Period 17.656
Period quality 2
Spectral Class X
Spectral Class Score 4.771
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5742 0.1522 0.1832 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.51 0.728 0.728 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.109 0.0251 0.0251 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
15.58 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
17.6566 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
X X 0.4006 0.2180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C X 0.1025 0.2180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.54 Bus VIS Carvano 2010A&A...510A..43C PHOT
X X 0.0310 0.2180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.0524 0.2180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.1311 0.2180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT