1999 JM12

1999JM12, 2000 YA136, 2000YA136, 2002 EX41, 2002EX41, 42807, J99J12M, K00YD6A, K02E41X

All data for this body: [vot]

MPC data
Name (number) 1999 JM12 (42807)
a 2.35846
e 0.24328
i / sin(i) 13.0439 / 0.22570
q 1.78469
Q 2.93223
ω 158.7135
Node 184.1561
m 331.2729
n 0.2721
Epoch 2460800.5
nobs 2241
nopp 21
Years observed 1996-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.358
ep 0.181
sin(ip) 0.220
G 0.150
H 15.470
Mass
D 3.32 0.245
pV 0.159 0.0405
Value
Rotational Period 2.811
Period quality 2
Spectral Class X
Spectral Class Score 4.758
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3579 0.1810 0.2202 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.31 0.281 0.281 Masiero 2011ApJ...741...68M NEATM
3.35 0.500 0.500 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.158 0.0580 0.0580 Masiero 2012ApJ...759L...8M NEATM
0.161 0.0567 0.0567 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
15.47 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.8116 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
K K 0.3513 0.3513 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.793 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT