1981 EM33

1981EM33, 2001 QR140, 2001QR140, 55730, J81E33M, K01QE0R

All data for this body: [vot]

MPC data
Name (number) 1981 EM33 (55730)
a 2.71271
e 0.14690
i / sin(i) 12.2030 / 0.21138
q 2.31421
Q 3.11121
ω 36.0146
Node 332.1346
m 119.8226
n 0.2206
Epoch 2460800.5
nobs 2083
nopp 20
Years observed 1981-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.714
ep 0.111
sin(ip) 0.220
G 0.150
H 14.620
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 3.320
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7138 0.1113 0.2201 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.62 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
Q 0.10 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.5534 0.5534 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT