2005 JR21

2005JR21, 2001 QL288, 2001QL288, H1189, K01QS8L, K05J21R

All data for this body: [vot]

MPC data
Name (number) 2005 JR21 (171189)
a 3.16775
e 0.07657
i / sin(i) 15.7931 / 0.27216
q 2.92518
Q 3.41031
ω 317.3484
Node 232.8382
m 231.1727
n 0.1748
Epoch 2460800.5
nobs 502
nopp 17
Years observed 2001-2025
rms 0.89
Best values
[raw, vot]

Value Standard error
Parent Ursula (375)
 
ap 3.168
ep 0.102
sin(ip) 0.286
G 0.150
H 15.210
Mass
D 5.71 0.214
pV 0.065 0.0062
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 0.599
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
375 Ursula 0 Ursula Novakovic 2019EPSC...13.1671N HCM
375 Ursula 631 Ursula Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1683 0.1023 0.2856 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.71 0.214 0.214 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.065 0.0062 0.0062 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
15.21 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
B C 0.0999 0.0770 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.0713 0.0770 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT