1998 QR40

1998QR40, 44247, J98Q40R

All data for this body: [vot]

MPC data
Name (number) 1998 QR40 (44247)
a 2.70465
e 0.13337
i / sin(i) 4.0525 / 0.07067
q 2.34394
Q 3.06536
ω 113.2248
Node 245.3193
m 215.7354
n 0.2216
Epoch 2460200.5
nobs 1829
nopp 20
Years observed 1998-2023
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent Nemesis (128)
 
ap 2.705
ep 0.091
sin(ip) 0.086
Value Standard error
G 0.150
H 14.660
Mass
D 6.95 0.162
pV 0.067 0.0067
Rotational Period
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
128 Nemesis 504 Nemesis -2.4300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7047 0.0906 0.0862 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.71 1.840 1.840 Masiero 2021PSJ.....2..162M NEATM
6.31 2.390 2.390 Masiero 2020PSJ.....1....5M NEATM
6.63 2.135 2.135 Masiero 2017AJ....154..168M NEATM
6.76 0.318 0.318 Masiero 2011ApJ...741...68M NEATM
7.04 0.191 0.191 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.062 0.0168 0.0168 Masiero 2011ApJ...741...68M NEATM
0.064 0.0443 0.0443 Masiero 2017AJ....154..168M NEATM
0.067 0.0075 0.0075 Masiero 2011ApJ...741...68M NEATM
0.070 0.0830 0.0830 Masiero 2020PSJ.....1....5M NEATM
0.083 0.0360 0.0620 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
14.66 MPC-2023-12-04 MPC-2023-12-04 Phot