2000 QB121

2000QB121, 1987 QE5, 1987QE5, 1998 FE137, 1998FE137, 36569, J87Q05E, J98FD7E, K00QC1B

All data for this body: [vot]

MPC data

Name (number)	2000 QB121 (36569)
a	2.66323
e	0.15499
i / sin(i)	12.6962 / 0.21978
q	2.25047
Q	3.07599
ω	241.7893
Node	199.5887
m	178.7314
n	0.2268
Epoch	2460800.5

n_obs	3093
n_opp	22
Years observed	1987-2025
rms	0.64

Best values

	Value	Standard error
Parent	Eunomia (15)

a_p	2.662
e_p	0.156
sin(i_p)	0.229
G	0.150
H	14.450
Mass
D	3.79	0.073
pV	0.282	0.0417

	Value
Rotational Period	2.764
Period quality	2
Spectral Class	S
Spectral Class Score	16.025

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
15	Eunomia	0	Eunomia		Novakovic	2019EPSC...13.1671N	HCM
15	Eunomia	502	Eunomia	0.1400	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.6616	0.1561	0.2285	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
3.79	0.073	0.073	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.282	0.0417	0.0417	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
14.45			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
2.76358	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve

Spectral Class Data

Class 1	Class 2	Probability of Class 1	Probability of Class 2	Taxonomy	Wavelength	Author	Reference	Method
S				DeMeo-Carry	VIS	DeMeo	2013Icar..226..723D	PHOT
S		0.109		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
S		0.82		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT
S	S	0.9594	0.9780	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.9958	0.9780	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT