2001QP21

H8921, K01Q21P

All data for this body: [vot]

MPC data
Name (number) 2001QP21 (178921)
Packed designation H8921
a 2.68956
e 0.18865
i / sin(i) 12.0578 / 0.20890
q 2.18216
Q 3.19695
ω 199.9232
Node 178.8335
m 205.9992
n 0.2235
Epoch 2459600.5
nobs 681
nopp 14
Years observed 1995-2021
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent Adeona (145)
 
ap 2.690
ep 0.162
sin(ip) 0.201
Value Standard error
G 0.150
H 15.480
Mass
D 4.54 0.048
pV 0.046 0.0101
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
145 Adeona 505 Adeona 0.2400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6900 0.1624 0.2013 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.54 0.048 0.048 Masiero 2011ApJ...741...68M NEATM
4.96 1.520 1.520 Masiero 2021PSJ.....2..162M NEATM
5.01 1.430 1.430 Masiero 2021PSJ.....2..162M NEATM
5.46 1.610 1.610 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.045 0.0330 0.0330 Masiero 2012ApJ...759L...8M NEATM
0.045 0.0124 0.0124 Masiero 2011ApJ...741...68M NEATM
0.046 0.0210 0.0390 Masiero 2021PSJ.....2..162M NEATM
0.050 0.0210 0.0350 Masiero 2021PSJ.....2..162M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.48 MPC-2022-01-18 MPC-2022-01-18 Phot