Williamina

05747, 1972 BF, 1972BF, 1991 CO3, 1991CO3, J72B00F, J91C03O

All data for this body: [vot]

MPC data

Name (number)	Williamina (5747)
a	2.39760
e	0.24113
i / sin(i)	24.6331 / 0.41681
q	1.81945
Q	2.97574
ω	170.8971
Node	282.0473
m	132.2160
n	0.2655
Epoch	2460800.5

n_obs	7055
n_opp	27
Years observed	1977-2025
rms	0.43

Best values

	Value	Standard error
Parent	Phocaea (25)

a_p	2.398
e_p	0.267
sin(i_p)	0.399
G	0.150
H	12.790
Mass
D	8.97	0.147
pV	0.215	0.0144

	Value
Rotational Period	196.400
Period quality	3-
Spectral Class	None
Spectral Class Score

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
25	Phocaea	0	Phocaea		Novakovic	2019EPSC...13.1671N	HCM
25	Phocaea	701	Phocaea	-0.0500	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.3978	0.2674	0.3985	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
7.75	0.990	0.990	Masiero	2012ApJ...759L...8M	NEATM
8.11	1.980	1.980	Nugent	2016AJ....152...63N	NEATM
8.13	0.300	0.300	Tedesco	2002AJ....123.1056T	STM
9.28	0.171	0.171	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.154	0.0207	0.0207	Masiero	2011ApJ...741...68M	NEATM
0.200	0.1200	0.1200	Nugent	2016AJ....152...63N	NEATM
0.267	0.0210	0.0210	Tedesco	2002AJ....123.1056T	STM
0.388	0.0860	0.0860	Masiero	2012ApJ...759L...8M	NEATM

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
12.79			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
196.45	2+	Synodic	Coley	LCDB	Lightcurve
196.45	3-	Synodic	Stephens	2021MPBu...48..246S	Lightcurve
197.9	3-	Synodic	Stephens	2021MPBu...48..246S	Lightcurve
38.6	0	Synodic	Warner	2009MPBu...36..109W	Lightcurve