Hartley

04768, 1988 PH1, 1988PH1, J88P01H

All data for this body: [vot]

MPC data

Name (number)	Hartley (4768)
a	3.17308
e	0.23908
i / sin(i)	20.0786 / 0.34331
q	2.41447
Q	3.93168
ω	26.3558
Node	320.4253
m	52.8871
n	0.1744
Epoch	2460200.5

n_obs	5822
n_opp	27
Years observed	1981-2023
rms	0.38

Best values

	Value	Standard error
Parent

a_p	3.187
e_p	0.232
sin(i_p)	0.340

	Value	Standard error
G	0.150
H	11.640
Mass
D	35.80	0.320
pV	0.040	0.0019
Rotational Period	22.080

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
3.1873	0.2320	0.3403	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Oct-2022

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
34.35	0.490	0.490	Masiero	2012ApJ...759L...8M	NEATM
34.88	0.766	0.766	Masiero	2011ApJ...741...68M	NEATM
34.98	10.540	10.540	Masiero	2020PSJ.....1....5M	NEATM
35.78	3.580	3.580	Ali-Lagoa	2018A&A...612A..85A	NEATM
36.39	14.820	14.820	Nugent	2016AJ....152...63N	NEATM
36.63	1.700	1.700	Tedesco	2002AJ....123.1056T	STM
36.96	1.521	1.521	Ryan&Woodward	2010AJ....140..933R	IRAS-NEATM
38.01	0.580	0.580	Usui	2011PASJ...63.1117U	NEATM
39.57	3.960	3.960	Ali-Lagoa	2018A&A...612A..85A	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.034	0.0070	0.0070	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.039	0.0031	0.0031	Ryan&Woodward	2010AJ....140..933R	IRAS-NEATM
0.040	0.0044	0.0044	Masiero	2011ApJ...741...68M	NEATM
0.040	0.0040	0.0040	Tedesco	2002AJ....123.1056T	STM
0.040	0.0700	0.0700	Nugent	2016AJ....152...63N	NEATM
0.042	0.0080	0.0080	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.045	0.0330	0.0330	Masiero	2020PSJ.....1....5M	NEATM
0.050	0.0090	0.0090	Masiero	2012ApJ...759L...8M	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
11.64			MPC-2023-12-04	MPC-2023-12-04	Phot

Period data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
22.08			Behrend	LCDB	Lightcurve