Bilbo

02991, 1975 JC, 1975JC, 1979 SY3, 1979SY3, 1982 HV, 1982HV, 1982 KB2, 1982KB2, J75J00C, J79S03Y, J82H00V, J82K02B

All data for this body: [vot]

MPC data
Name (number) Bilbo (2991)
a 2.33712
e 0.22155
i / sin(i) 5.1528 / 0.08981
q 1.81933
Q 2.85491
ω 197.9715
Node 96.5572
m 317.7164
n 0.2759
Epoch 2460800.5
nobs 4134
nopp 27
Years observed 1975-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.337
ep 0.196
sin(ip) 0.071
G 0.150
H 13.740
Mass
D 7.89 0.142
pV 0.110 0.0121
Value
Rotational Period 4.063
Period quality 3
Spectral Class Ch
Spectral Class Score 5.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3371 0.1961 0.0715 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.99 1.460 1.460 Nugent 2016AJ....152...63N NEATM
7.82 0.147 0.147 Masiero 2011ApJ...741...68M NEATM
9.13 0.590 0.590 Usui 2011PASJ...63.1117U NEATM
9.57 1.910 1.910 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.077 0.0310 0.0310 Ali-Lagoa 2018A&A...612A..85A NEATM
0.115 0.0132 0.0132 Masiero 2011ApJ...741...68M NEATM
0.140 0.1000 0.1000 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
13.74 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.06175 2 Sidereal Hanus 2013A&A...551A..67H Model
4.0637 3 Synodic Higgins LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.65 Bus VIS Carvano 2010A&A...510A..43C PHOT
C S 0.570000 0.320000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Caa Tholen VIS Lazzaro 2004Icar..172..179L SPEC
Ch Bus VIS Lazzaro 2004Icar..172..179L SPEC
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X X 0.3243 0.3243 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT