Horkheimer

11409, 1988 HY, 1988HY, 1990 RH15, 1990RH15, 1999 FD9, 1999FD9, J88H00Y, J90R15H, J99F09D

All data for this body: [vot]

MPC data

Name (number)	Horkheimer (11409)
a	3.18744
e	0.11492
i / sin(i)	2.2987 / 0.04011
q	2.82115
Q	3.55372
ω	74.2511
Node	115.9072
m	200.5130
n	0.1732
Epoch	2460800.5

n_obs	3188
n_opp	26
Years observed	1988-2025
rms	0.68

Best values

	Value	Standard error
Parent	Themis (24)

a_p	3.199
e_p	0.131
sin(i_p)	0.021
G	0.150
H	12.970
Mass
D	15.35	0.100
pV	0.053	0.0048

	Value
Rotational Period	10.273
Period quality	2
Spectral Class	B
Spectral Class Score	1.308

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
24	Themis	0	Themis		Novakovic	2019EPSC...13.1671N	HCM
24	Themis	602	Themis	0.7900	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
3.1994	0.1308	0.0210	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
14.44	5.630	5.630	Nugent	2016AJ....152...63N	NEATM
15.36	0.100	0.100	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.050	0.0400	0.0400	Nugent	2016AJ....152...63N	NEATM
0.053	0.0048	0.0048	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
12.97			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
10.27274	2	Sidereal	Durech	2018A&A...617A..57D	Model

Spectral Class Data

Class 1	Class 2	Probability of Class 1	Probability of Class 2	Taxonomy	Wavelength	Author	Reference	Method
B		0.218		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
C	C	0.2048	0.2048	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
Ds	Xt	None	None	Movis	NIR	Popescu	2018A&A...617A..12P	PHOT