Iwaizumi

04712, 1931EN, 1950RB1, 1964CB, 1979YN2, 1987FO1, 1989QE, J31E00N, J50R01B, J64C00B, J79Y02N, J87F01O, J89Q00E

All data for this body: [vot]

MPC data

Name (number)	Iwaizumi (4712)
Packed designation	04712
a	3.14579
e	0.13737
i / sin(i)	12.2297 / 0.21183
q	2.71367
Q	3.57792
ω	350.4224
Node	334.0696
m	295.7939
n	0.1766
Epoch	2459600.5

n_obs	3118
n_opp	27
Years observed	1931-2021
rms	0.40

Best values

	Value	Standard error
Parent

a_p	3.145
e_p	0.131
sin(i_p)	0.219

	Value	Standard error
G	0.150
H	11.470
Mass
D	30.13	0.200
pV	0.084	0.0039

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
3.1451	0.1310	0.2190	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Jan-2022

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
27.54	1.196	1.196	Ryan&Woodward	2010AJ....140..933R	IRAS-STM
28.10	7.710	7.710	Masiero	2020PSJ.....1....5M	NEATM
28.75	1.000	1.000	Tedesco	2002AJ....123.1056T	STM
28.78	0.350	0.350	Masiero	2014ApJ...791..121M	NEATM
30.93	0.288	0.288	Masiero	2011ApJ...741...68M	NEATM
31.45	0.590	0.590	Usui	2011PASJ...63.1117U	NEATM
32.62	2.509	2.509	Ryan&Woodward	2010AJ....140..933R	IRAS-NEATM
33.15	6.630	6.630	Ali-Lagoa	2018A&A...612A..85A	NEATM
33.21	3.320	3.320	Ali-Lagoa	2018A&A...612A..85A	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.047	0.0450	0.0450	Masiero	2020PSJ.....1....5M	NEATM
0.048	0.0100	0.0100	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.048	0.0190	0.0190	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.076	0.0109	0.0109	Ryan&Woodward	2010AJ....140..933R	IRAS-NEATM
0.081	0.0169	0.0169	Masiero	2011ApJ...741...68M	NEATM
0.093	0.0070	0.0070	Tedesco	2002AJ....123.1056T	STM
0.100	0.0100	0.0100	Masiero	2014ApJ...791..121M	NEATM
0.103	0.0093	0.0093	Ryan&Woodward	2010AJ....140..933R	IRAS-STM

G data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.15			MPC-2022-01-18	MPC-2022-01-18	Phot

H data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
11.47			MPC-2022-01-18	MPC-2022-01-18	Phot