Siri

00332, 1892 FH, 1892FH, 1896 BA, 1896BA, 1922 XA, 1922XA, I92F00H, I96B00A, J22X00A

All data for this body: [vot]

MPC data
Name (number) Siri (332)
a 2.77316
e 0.08862
i / sin(i) 2.8450 / 0.04963
q 2.52741
Q 3.01892
ω 298.2309
Node 31.5454
m 19.1371
n 0.2134
Epoch 2460200.5
nobs 4715
nopp 68
Years observed 1892-2023
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.773
ep 0.064
sin(ip) 0.044
Value Standard error
G 0.150
H 9.730
Mass
D 42.60 0.571
pV 0.142 0.0076
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7730 0.0640 0.0442 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
38.63 3.860 3.860 Ali-Lagoa 2018A&A...612A..85A NEATM
40.37 1.800 1.800 Tedesco 2002AJ....123.1056T STM
42.04 2.318 2.318 Ryan&Woodward 2010AJ....140..933R IRAS-STM
42.51 0.670 0.670 Usui 2011PASJ...63.1117U NEATM
44.84 4.480 4.480 Ali-Lagoa 2018A&A...612A..85A NEATM
47.70 2.112 2.112 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.123 0.0112 0.0112 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.126 0.0250 0.0250 Ali-Lagoa 2018A&A...612A..85A NEATM
0.159 0.0177 0.0177 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.170 0.0340 0.0340 Ali-Lagoa 2018A&A...612A..85A NEATM
0.172 0.0170 0.0170 Tedesco 2002AJ....123.1056T STM
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
9.73 MPC-2023-12-04 MPC-2023-12-04 Phot