1999 EC9

1999EC9, 1983 RP8, 1983RP8, 38062, J83R08P, J99E09C

All data for this body: [vot]

MPC data
Name (number) 1999 EC9 (38062)
a 2.28099
e 0.20933
i / sin(i) 0.7533 / 0.01315
q 1.80351
Q 2.75848
ω 209.2938
Node 115.1040
m 46.8090
n 0.2861
Epoch 2460800.5
nobs 1663
nopp 21
Years observed 1983-2024
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.281
ep 0.167
sin(ip) 0.008
G 0.150
H 16.020
Mass
D 3.88 0.041
pV 0.046 0.0041
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.718
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2810 0.1673 0.0078 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.53 0.780 0.780 Masiero 2020PSJ.....1....5M NEATM
3.61 0.930 0.930 Nugent 2016AJ....152...63N NEATM
3.65 0.109 0.109 Masiero 2011ApJ...741...68M NEATM
3.92 0.044 0.044 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.042 0.0072 0.0072 Masiero 2011ApJ...741...68M NEATM
0.048 0.0051 0.0051 Masiero 2011ApJ...741...68M NEATM
0.050 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.068 0.0690 0.0690 Masiero 2020PSJ.....1....5M 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
16.02 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
C 0.953 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT