Antarctica

02404, 1933 BP, 1933BP, 1934 GQ, 1934GQ, 1951 LN, 1951LN, 1969 TH5, 1969TH5, 1976 WG, 1976WG, 1980 TE, 1980TE, J33B00P, J34G00Q, J51L00N, J69T05H, J76W00G, J80T00E

All data for this body: [vot]

MPC data
Name (number) Antarctica (2404)
a 3.12515
e 0.13153
i / sin(i) 2.6901 / 0.04693
q 2.71410
Q 3.53620
ω 146.3810
Node 110.8374
m 131.0704
n 0.1784
Epoch 2460800.5
nobs 5376
nopp 40
Years observed 1933-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.127
ep 0.148
sin(ip) 0.027
G 0.150
H 11.940
Mass
D 23.12 0.299
pV 0.090 0.0129
Value
Rotational Period 4.524
Period quality 2
Spectral Class B
Spectral Class Score 6.991
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis -0.1400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1271 0.1483 0.0270 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
20.83 4.170 4.170 Ali-Lagoa 2018A&A...612A..85A NEATM
22.00 1.340 1.340 Usui 2011PASJ...63.1117U NEATM
22.80 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
22.80 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
23.21 0.316 0.316 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.089 0.0360 0.0360 Ali-Lagoa 2018A&A...612A..85A NEATM
0.090 0.0138 0.0138 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
11.94 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.5248 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
B B 0.2878 0.6670 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.8773 0.6670 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.77 Bus VIS Carvano 2010A&A...510A..43C PHOT