1989 BC

1989BC, 07282, 1985 HU1, 1985HU1, 1992 XJ, 1992XJ, J85H01U, J89B00C, J92X00J

All data for this body: [vot]

MPC data
Name (number) 1989 BC (7282)
a 2.75960
e 0.13197
i / sin(i) 13.1330 / 0.22721
q 2.39541
Q 3.12379
ω 98.7815
Node 99.4019
m 278.9583
n 0.2150
Epoch 2460800.5
nobs 4450
nopp 29
Years observed 1954-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.757
ep 0.159
sin(ip) 0.214
G 0.150
H 12.890
Mass
D 15.07 0.928
pV 0.070 0.0185
Value
Rotational Period 4.648
Period quality 2
Spectral Class C
Spectral Class Score 2.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7570 0.1591 0.2140 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.62 3.260 3.260 Masiero 2020PSJ.....1....5M NEATM
13.54 4.520 4.520 Masiero 2020PSJ.....1....5M NEATM
14.35 2.220 2.220 Masiero 2012ApJ...759L...8M NEATM
15.70 1.180 1.180 Usui 2011PASJ...63.1117U NEATM
16.04 3.210 3.210 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.057 0.0480 0.0480 Masiero 2020PSJ.....1....5M NEATM
0.065 0.0260 0.0260 Ali-Lagoa 2018A&A...612A..85A NEATM
0.071 0.0660 0.0660 Masiero 2020PSJ.....1....5M NEATM
0.086 0.0360 0.0360 Masiero 2012ApJ...759L...8M 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
12.89 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.6481 2 Synodic Pal 2020ApJS..247...26P Lightcurve
4.64866 2 Sidereal Durech 2019A&A...631A...2D Model
4.64866 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT