Peacock

18727, 1994 TW4, 1994TW4, 1998 KW3, 1998KW3, J94T04W, J98K03W

All data for this body: [vot]

MPC data
Name (number) Peacock (18727)
a 3.12689
e 0.11830
i / sin(i) 5.3768 / 0.09370
q 2.75698
Q 3.49680
ω 74.2540
Node 179.4143
m 288.2257
n 0.1783
Epoch 2460800.5
nobs 3201
nopp 25
Years observed 1990-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.130
ep 0.136
sin(ip) 0.093
G 0.150
H 13.570
Mass
D 11.31 0.101
pV 0.071 0.0082
Value
Rotational Period 4.420
Period quality 2
Spectral Class C
Spectral Class Score 4.405
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
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
3.1304 0.1357 0.0935 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.94 0.175 0.175 Masiero 2011ApJ...741...68M NEATM
11.50 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
11.50 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.071 0.0082 0.0082 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
13.57 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.41931 2 Sidereal Durech 2023A&A...675A..24D Model
4.41997 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 B 0.6976 0.4950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.32 Bus VIS Carvano 2010A&A...510A..43C PHOT
C B 0.2942 0.4950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT