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

n_obs	4715
n_opp	68
Years observed	1892-2023
rms	0.56

Best values

	Value	Standard error
Parent

a_p	2.773
e_p	0.064
sin(i_p)	0.044

	Value	Standard error
G	0.150
H	9.730
Mass
D	42.60	0.571
pV	0.142	0.0076
Rotational Period	8.007

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.7730	0.0640	0.0442	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Oct-2022

Diameter data

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

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

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.15			MPC-2023-12-94	MPC-2023-12-94	Phot

H data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
9.73			MPC-2023-12-04	MPC-2023-12-04	Phot

Period data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
6.00			Warner	2006MPBu...33...58W	Lightcurve
7.00			Cieza	LCDB	Lightcurve
7.00			Lagerkvist	1978A&AS...31..361L	Lightcurve
8.01			Durech	2020A&A...643A..59D	Model
8.01			Higgins	2008MPBu...35..123H	Lightcurve
8.01			Behrend	LCDB	Lightcurve
8.01			Behrend	LCDB	Lightcurve