Hela

00699, 1902 WE, 1902WE, 1910 LC, 1910LC, 1923 TB, 1923TB, 1948 KD, 1948KD, 1957 WX1, 1957WX1, J02W00E, J10L00C, J23T00B, J48K00D, J57W01X

All data for this body: [vot]

MPC data
Name (number) Hela (699)
a 2.61345
e 0.40972
i / sin(i) 15.2923 / 0.26374
q 1.54267
Q 3.68423
ω 91.4634
Node 242.4986
m 251.0354
n 0.2333
Epoch 2460200.5
nobs 5417
nopp 37
Years observed 1902-2023
rms 0.46
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
Value Standard error
G 0.150
H 11.490
Mass
D 13.67 0.408
pV 0.052 0.0087
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.20 1.800 1.800 Ali-Lagoa 2017A&A...603A..55A NEATM
13.28 2.660 2.660 Ali-Lagoa 2018A&A...612A..85A NEATM
13.39 0.450 0.450 Usui 2011PASJ...63.1117U NEATM
14.16 1.420 1.420 Ali-Lagoa 2018A&A...612A..85A NEATM
26.30 3.900 3.900 Ali-Lagoa 2017A&A...603A..55A NEATM
31.50 4.700 4.700 Ali-Lagoa 2017A&A...603A..55A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0100 0.0100 Ali-Lagoa 2017A&A...603A..55A NEATM
0.050 0.0200 0.0200 Ali-Lagoa 2017A&A...603A..55A NEATM
0.240 0.0700 0.0700 Ali-Lagoa 2017A&A...603A..55A NEATM
0.284 0.0570 0.0570 Ali-Lagoa 2018A&A...612A..85A NEATM
0.323 0.1290 0.1290 Ali-Lagoa 2018A&A...612A..85A 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
11.49 MPC-2023-12-04 MPC-2023-12-04 Phot