2000 OC21

2000OC21, 18908, 1977 UL4, 1977UL4, 1981 UN7, 1981UN7, 1999 GG27, 1999GG27, J77U04L, J81U07N, J99G27G, K00O21C

All data for this body: [vot]

MPC data
Name (number) 2000 OC21 (18908)
a 2.44717
e 0.22422
i / sin(i) 2.8259 / 0.04930
q 1.89846
Q 2.99589
ω 272.4334
Node 49.6776
m 188.2763
n 0.2575
Epoch 2460800.5
nobs 2094
nopp 23
Years observed 1977-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.449
ep 0.189
sin(ip) 0.040
G 0.150
H 15.090
Mass
D 5.08 0.275
pV 0.073 0.0146
Value
Rotational Period
Period quality None
Spectral Class Kl
Spectral Class Score 1.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana 0.3000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4491 0.1894 0.0401 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.30 0.900 0.900 Nugent 2016AJ....152...63N NEATM
3.35 0.910 0.910 Masiero 2021PSJ.....2..162M NEATM
3.76 0.830 0.830 Masiero 2021PSJ.....2..162M NEATM
5.75 0.328 0.328 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.064 0.0156 0.0156 Masiero 2011ApJ...741...68M NEATM
0.125 0.0520 0.0880 Masiero 2021PSJ.....2..162M NEATM
0.140 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM
0.158 0.0620 0.1020 Masiero 2021PSJ.....2..162M 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
15.09 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
Kl Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT