Karen

02651, 1949 QD, 1949QD, 1951 EZ, 1951EZ, 1961 BA, 1961BA, 1980 UJ, 1980UJ, J49Q00D, J51E00Z, J61B00A, J80U00J

All data for this body: [vot]

MPC data

Name (number)	Karen (2651)
a	2.98648
e	0.32481
i / sin(i)	17.7602 / 0.30504
q	2.01645
Q	3.95650
ω	276.3239
Node	126.3243
m	96.3101
n	0.1910
Epoch	2460200.5

n_obs	3466
n_opp	30
Years observed	1949-2023
rms	0.54

Best values

	Value	Standard error
Parent

a_p	2.984
e_p	0.270
sin(i_p)	0.318

	Value	Standard error
G	0.150
H	11.910
Mass
D	26.52	0.222
pV	0.045	0.0053

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.9840	0.2702	0.3181	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Oct-2022

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
23.54	5.467	5.467	Masiero	2017AJ....154..168M	NEATM
23.55	0.350	0.350	Masiero	2011ApJ...741...68M	NEATM
24.18	7.190	7.190	Masiero	2020PSJ.....1....5M	NEATM
28.52	0.290	0.290	Usui	2011PASJ...63.1117U	NEATM
28.54	9.456	9.456	Masiero	2017AJ....154..168M	NEATM
28.68	2.870	2.870	Ali-Lagoa	2018A&A...612A..85A	NEATM
30.23	3.020	3.020	Ali-Lagoa	2018A&A...612A..85A	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.039	0.0080	0.0080	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.040	0.0228	0.0228	Masiero	2017AJ....154..168M	NEATM
0.040	0.0280	0.0280	Masiero	2020PSJ.....1....5M	NEATM
0.043	0.0090	0.0090	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.044	0.0184	0.0184	Masiero	2017AJ....154..168M	NEATM
0.116	0.0239	0.0239	Masiero	2011ApJ...741...68M	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
11.91			MPC-2023-12-04	MPC-2023-12-04	Phot

Period data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
122.62			Durech	2020A&A...643A..59D	Model
122.62			Martikainen	2021A&A...649A..98M	Model
122.64			Durech	2023A&A...675A..24D	Model
6.32			Bembrick	2007MPBu...34...27B	Lightcurve
9.10			Behrend	LCDB	Lightcurve