1981 SE9

1981SE9, 11472, 1981 RG, 1981RG, 1992 UX1, 1992UX1, 1998 FP120, 1998FP120, J81R00G, J81S09E, J92U01X, J98FC0P

All data for this body: [vot]

MPC data
Name (number) 1981 SE9 (11472)
a 2.35789
e 0.24005
i / sin(i) 3.2617 / 0.05690
q 1.79188
Q 2.92389
ω 214.6291
Node 114.0754
m 36.0257
n 0.2722
Epoch 2460800.5
nobs 5087
nopp 23
Years observed 1981-2025
rms 0.52
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.358
ep 0.203
sin(ip) 0.040
G 0.150
H 15.030
Mass
D 2.70 0.095
pV 0.350 0.0587
Value
Rotational Period 2.500
Period quality 2-
Spectral Class S
Spectral Class Score 6.145
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana -0.8200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3576 0.2025 0.0396 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.70 0.095 0.095 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.350 0.0587 0.0587 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
15.03 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.58 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S S 0.3266 0.6470 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6975 0.6470 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT