1981 EW23

1981EW23, 2000 SL254, 2000SL254, 96169, J81E23W, K00SP4L

All data for this body: [vot]

MPC data
Name (number) 1981 EW23 (96169)
a 2.34939
e 0.18114
i / sin(i) 1.5470 / 0.02700
q 1.92383
Q 2.77495
ω 328.0384
Node 285.5056
m 31.3797
n 0.2737
Epoch 2460800.5
nobs 818
nopp 20
Years observed 1981-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.350
ep 0.187
sin(ip) 0.042
G 0.150
H 16.480
Mass
D 1.38 0.193
pV 0.281 0.0911
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 9.219
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana -0.4200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3500 0.1870 0.0417 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.38 0.193 0.193 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.281 0.0911 0.0911 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
16.48 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.109 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
L S 0.6016 0.5270 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.74 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9565 0.5270 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT