Gold

04955, 1987 BQ2, 1987BQ2, 1990 SF2, 1990SF2, 1990 WB, 1990WB, J87B02Q, J90S02F, J90W00B

All data for this body: [vot]

MPC data
Name (number) Gold (4955)
a 3.15743
e 0.13487
i / sin(i) 7.4079 / 0.12893
q 2.73159
Q 3.58328
ω 251.3617
Node 89.4046
m 86.7511
n 0.1757
Epoch 2460800.5
nobs 5529
nopp 29
Years observed 1984-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.147
ep 0.116
sin(ip) 0.110
G 0.150
H 11.880
Mass
D 20.17 0.170
pV 0.069 0.0078
Value
Rotational Period 3.406
Period quality 2
Spectral Class B
Spectral Class Score 9.776
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
52 Europa -1 Europa -1.0000 Nesvorny 2024ApJS..274...25N HCM-2024
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1469 0.1163 0.1099 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
19.80 0.180 0.180 Masiero 2011ApJ...741...68M NEATM
21.52 4.300 4.300 Ali-Lagoa 2018A&A...612A..85A NEATM
21.60 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
23.02 0.570 0.570 Usui 2011PASJ...63.1117U NEATM
24.39 2.440 2.440 Ali-Lagoa 2018A&A...612A..85A NEATM
29.84 2.700 2.700 Tedesco 2002AJ....123.1056T STM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.060 0.0120 0.0120 Tedesco 2002AJ....123.1056T STM
0.062 0.0120 0.0120 Ali-Lagoa 2018A&A...612A..85A NEATM
0.080 0.0320 0.0320 Ali-Lagoa 2018A&A...612A..85A NEATM
0.136 0.0248 0.0248 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
11.88 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.40624 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B Tholen VIS Lazzaro 2004Icar..172..179L SPEC
B 0.796 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C 0.870000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Cgh Bus VIS Lazzaro 2004Icar..172..179L SPEC