1998 BT2

1998BT2, 1993 UR3, 1993UR3, 37816, J93U03R, J98B02T

All data for this body: [vot]

MPC data
Name (number) 1998 BT2 (37816)
a 2.36543
e 0.13644
i / sin(i) 5.0056 / 0.08725
q 2.04270
Q 2.68816
ω 353.1768
Node 91.5439
m 211.0308
n 0.2709
Epoch 2460800.5
nobs 2953
nopp 20
Years observed 1993-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.365
ep 0.149
sin(ip) 0.071
G 0.150
H 15.490
Mass
D 4.47 0.200
pV 0.066 0.0061
Value
Rotational Period 6.248
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3649 0.1486 0.0713 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.99 1.310 1.310 Nugent 2016AJ....152...63N NEATM
4.43 0.213 0.213 Masiero 2011ApJ...741...68M NEATM
4.78 1.330 1.330 Masiero 2021PSJ.....2..162M NEATM
4.85 0.940 0.940 Masiero 2020PSJ.....1....5M NEATM
5.18 1.240 1.240 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.051 0.0180 0.0270 Masiero 2021PSJ.....2..162M NEATM
0.057 0.0410 0.0410 Masiero 2020PSJ.....1....5M NEATM
0.059 0.0230 0.0370 Masiero 2021PSJ.....2..162M NEATM
0.068 0.0066 0.0066 Masiero 2011ApJ...741...68M NEATM
0.070 0.0400 0.0400 Nugent 2016AJ....152...63N 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
15.49 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.24832 2 Synodic Pal 2020ApJS..247...26P Lightcurve