Hapke

03549, 1964 DC, 1964DC, 1973 AE1, 1973AE1, 1980 PO1, 1980PO1, 1981 YH, 1981YH, 1982 BQ8, 1982BQ8, 1985 TQ3, 1985TQ3, J64D00C, J73A01E, J80P01O, J81Y00H, J82B08Q, J85T03Q

All data for this body: [vot]

MPC data

Name (number)	Hapke (3549)
a	2.76044
e	0.16675
i / sin(i)	7.5202 / 0.13087
q	2.30014
Q	3.22074
ω	212.3200
Node	283.9552
m	130.2456
n	0.2149
Epoch	2460800.5

n_obs	6113
n_opp	30
Years observed	1973-2025
rms	0.56

Best values

	Value	Standard error
Parent

a_p	2.760
e_p	0.198
sin(i_p)	0.150
G	0.150
H	12.620
Mass
D	9.98	0.060
pV	0.231	0.0241

	Value
Rotational Period	7.000
Period quality	3-
Spectral Class	S
Spectral Class Score	5.303

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.7595	0.1978	0.1500	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
9.14	0.370	0.370	Masiero	2014ApJ...791..121M	NEATM
10.00	0.061	0.061	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.214	0.0302	0.0302	Masiero	2011ApJ...741...68M	NEATM
0.260	0.0400	0.0400	Masiero	2014ApJ...791..121M	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
12.62			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
7.07	3-	Synodic	Carreno	2020MPBu...47....7C	Lightcurve
7.071	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
7.072	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
7.07595	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
L	S	0.7368	0.4270	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S		0.318		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
S	S	0.5658	0.4270	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT