1984 SY1

1984SY1, 11477, 1979 WL7, 1979WL7, 1998 KU47, 1998KU47, J79W07L, J84S01Y, J98K47U

All data for this body: [vot]

MPC data
Name (number) 1984 SY1 (11477)
a 2.99108
e 0.09044
i / sin(i) 9.2543 / 0.16082
q 2.72055
Q 3.26161
ω 187.9322
Node 227.8901
m 276.2667
n 0.1905
Epoch 2460800.5
nobs 4723
nopp 26
Years observed 1979-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 2.990
ep 0.077
sin(ip) 0.174
G 0.150
H 12.530
Mass
D 11.08 0.229
pV 0.188 0.0359
Value
Rotational Period 268.500
Period quality 2
Spectral Class X
Spectral Class Score 3.486
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 0 Eos Novakovic 2019EPSC...13.1671N HCM
221 Eos 606 Eos -0.8300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9902 0.0773 0.1737 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.08 0.230 0.230 Masiero 2012ApJ...759L...8M NEATM
11.24 2.230 2.230 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.184 0.0650 0.0650 Masiero 2012ApJ...759L...8M NEATM
0.190 0.0430 0.0430 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
12.53 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
268.54 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Kl Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X 0.581 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT