Billgray

15964, 1980 RE, 1980RE, 1998 DU, 1998DU, J80R00E, J98D00U

All data for this body: [vot]

MPC data
Name (number) Billgray (15964)
a 1.95235
e 0.09222
i / sin(i) 18.0782 / 0.31032
q 1.77230
Q 2.13240
ω 110.6783
Node 309.5193
m 72.1065
n 0.3613
Epoch 2460800.5
nobs 2224
nopp 20
Years observed 1953-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent Hungaria (434)
 
ap 1.952
ep 0.064
sin(ip) 0.363
G 0.150
H 15.070
Mass
D
pV
Value
Rotational Period 3.570
Period quality 3
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
434 Hungaria 0 Hungaria Novakovic 2019EPSC...13.1671N HCM
434 Hungaria 3 Hungaria 0.3100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
1.9524 0.0643 0.3634 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.07 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.565 3 Synodic Warner 2014MPBu...41..144W Lightcurve
3.57 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
3.571 3 Synodic Warner 2011MPBu...38...25W Lightcurve
3.576 3 Synodic Stephens 2022MPBu...49...31S Lightcurve