Heliaca

08980, 1968 UJ3, 1968UJ3, 1991 VM16, 1991VM16, 1993 FF57, 1993FF57, 4190 T-3, 4190T-3, J68U03J, J91V16M, J93F57F, T3S4190

All data for this body: [vot]

MPC data

Name (number)	Heliaca (8980)
a	2.76714
e	0.19723
i / sin(i)	8.8176 / 0.15329
q	2.22137
Q	3.31290
ω	21.8161
Node	59.7986
m	75.0294
n	0.2141
Epoch	2460800.5

n_obs	3705
n_opp	24
Years observed	1968-2025
rms	0.65

Best values

	Value	Standard error
Parent	Dora (668)

a_p	2.768
e_p	0.193
sin(i_p)	0.136
G	0.150
H	14.210
Mass
D	6.89	0.818
pV	0.082	0.0227

	Value
Rotational Period
Period quality	None
Spectral Class	C
Spectral Class Score	5.844

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
668	Dora	0	Dora		Novakovic	2019EPSC...13.1671N	HCM
668	Dora	512	Dora		Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.7676	0.1933	0.1356	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
6.20	1.160	1.160	Masiero	2021PSJ.....2..162M	NEATM
7.29	1.650	1.650	Nugent	2016AJ....152...63N	NEATM
7.66	2.830	2.830	Masiero	2012ApJ...759L...8M	NEATM
7.92	1.960	1.960	Masiero	2021PSJ.....2..162M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.062	0.0300	0.0570	Masiero	2021PSJ.....2..162M	NEATM
0.070	0.0400	0.0400	Nugent	2016AJ....152...63N	NEATM
0.091	0.1430	0.1430	Masiero	2012ApJ...759L...8M	NEATM
0.105	0.0310	0.0430	Masiero	2021PSJ.....2..162M	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
14.21			MPC-2023-12-04	MPC-2023-12-04	Phot

Spectral Class Data

Class 1	Class 2	Probability of Class 1	Probability of Class 2	Taxonomy	Wavelength	Author	Reference	Method
C		0.974		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
S	S	None	None	Movis	NIR	Popescu	2018A&A...617A..12P	PHOT