Ermak

04681, 1969 TC2, 1969TC2, 1977 DA11, 1977DA11, 1979 SV1, 1979SV1, J69T02C, J77D11A, J79S01V

All data for this body: [vot]

MPC data
Name (number) Ermak (4681)
a 3.01810
e 0.12463
i / sin(i) 11.5224 / 0.19975
q 2.64194
Q 3.39426
ω 317.8361
Node 37.7017
m 237.4866
n 0.1880
Epoch 2460800.5
nobs 4254
nopp 29
Years observed 1969-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.019
ep 0.089
sin(ip) 0.189
G 0.150
H 12.210
Mass
D 12.47 0.269
pV 0.179 0.0229
Value
Rotational Period
Period quality None
Spectral Class K
Spectral Class Score 5.994
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos -0.1600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0190 0.0893 0.1891 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.19 0.280 0.280 Masiero 2011ApJ...741...68M NEATM
15.80 1.010 1.010 Usui 2011PASJ...63.1117U NEATM
16.27 3.250 3.250 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.095 0.0380 0.0380 Ali-Lagoa 2018A&A...612A..85A NEATM
0.227 0.0286 0.0286 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
12.21 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
K 0.999 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT