1981 EC38

1981EC38, 1996 RK24, 1996RK24, 39503, J81E38C, J96R24K

All data for this body: [vot]

MPC data
Name (number) 1981 EC38 (39503)
a 2.28901
e 0.09903
i / sin(i) 2.4228 / 0.04227
q 2.06233
Q 2.51569
ω 130.3554
Node 233.2943
m 83.5153
n 0.2846
Epoch 2460800.5
nobs 2068
nopp 20
Years observed 1981-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.288
ep 0.062
sin(ip) 0.057
G 0.150
H 15.580
Mass
D 2.00 0.301
pV 0.280 0.0910
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 8.476
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2883 0.0620 0.0566 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.00 0.301 0.301 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.280 0.0910 0.0910 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
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.51 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.1711 0.4520 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.2666 0.4520 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6416 0.4520 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT