Aci

06522, 1990 BH4, 1990BH4, 1991 NQ, 1991NQ, J90B04H, J91N00Q

All data for this body: [vot]

MPC data

Name (number)	Aci (6522)
a	2.38449
e	0.19936
i / sin(i)	22.1056 / 0.37632
q	1.90911
Q	2.85987
ω	313.9751
Node	294.4055
m	98.2370
n	0.2677
Epoch	2460800.5

n_obs	3371
n_opp	24
Years observed	1990-2025
rms	0.66

Best values

	Value	Standard error
Parent	Phocaea (25)

a_p	2.386
e_p	0.229
sin(i_p)	0.384
G	0.150
H	13.100
Mass
D	6.12	0.119
pV	0.392	0.0286

	Value
Rotational Period	7.693
Period quality	3
Spectral Class	S
Spectral Class Score	5.472

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
1963	Bezovec	-1	Bezovec	-1.0000	Nesvorny	2024ApJS..274...25N	HCM-2024
25	Phocaea	0	Phocaea		Novakovic	2019EPSC...13.1671N	HCM
25	Phocaea	701	Phocaea	-0.2100	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.3856	0.2289	0.3843	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
6.12	0.119	0.119	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.392	0.0286	0.0286	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
13.10			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
7.692	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
7.6937	3	Synodic	Benishek	2018MPBu...45...82B	Lightcurve
7.6937	3	Synodic	Pravec	LCDB	Lightcurve
7.69424	2	Sidereal	Durech	2019A&A...631A...2D	Model
7.6943	2	Sidereal	Durech	2023A&A...675A..24D	Model

Spectral Class Data

Class 1	Class 2	Probability of Class 1	Probability of Class 2	Taxonomy	Wavelength	Author	Reference	Method
S		0.912		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT