1999 SM22

1999SM22, 1998 HN90, 1998HN90, 1999 RD182, 1999RD182, 38449, J98H90N, J99RI2D, J99S22M

All data for this body: [vot]

MPC data
Name (number) 1999 SM22 (38449)
a 2.53915
e 0.11511
i / sin(i) 5.8335 / 0.10164
q 2.24687
Q 2.83144
ω 61.2580
Node 172.9099
m 232.5891
n 0.2436
Epoch 2460800.5
nobs 1794
nopp 22
Years observed 1991-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.538
ep 0.150
sin(ip) 0.112
G 0.150
H 15.270
Mass
D 2.29 0.307
pV 0.224 0.0459
Value
Rotational Period 14.540
Period quality 2
Spectral Class S
Spectral Class Score 1.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5378 0.1497 0.1120 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.23 0.419 0.419 Masiero 2011ApJ...741...68M NEATM
2.36 0.452 0.452 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.219 0.0505 0.0505 Masiero 2011ApJ...741...68M NEATM
0.245 0.1106 0.1106 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
15.27 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
14.544 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
S Ds None None Movis NIR Popescu 2018A&A...617A..12P PHOT