1999 BT31

1999BT31, 2001 RV20, 2001RV20, 59222, J99B31T, K01R20V

All data for this body: [vot]

MPC data
Name (number) 1999 BT31 (59222)
a 2.40234
e 0.17471
i / sin(i) 1.7334 / 0.03025
q 1.98263
Q 2.82205
ω 105.7113
Node 328.5070
m 52.4141
n 0.2647
Epoch 2460800.5
nobs 1222
nopp 17
Years observed 1990-2025
rms 0.81
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.403
ep 0.175
sin(ip) 0.041
G 0.150
H 16.070
Mass
D 1.56 0.156
pV 0.288 0.0645
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
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 -0.1300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4028 0.1755 0.0412 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.56 0.156 0.156 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.288 0.0645 0.0645 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
16.07 MPC-2023-12-04 MPC-2023-12-04 Phot