1988 DJ1

1988DJ1, 09314, 1990 QY1, 1990QY1, 1990 RK, 1990RK, J88D01J, J90Q01Y, J90R00K

All data for this body: [vot]

MPC data

Name (number)	1988 DJ1 (9314)
a	2.46620
e	0.18774
i / sin(i)	5.3606 / 0.09342
q	2.00321
Q	2.92919
ω	269.3116
Node	149.7840
m	290.5052
n	0.2545
Epoch	2460800.5

n_obs	5177
n_opp	24
Years observed	1988-2025
rms	0.59

Best values

	Value	Standard error
Parent

a_p	2.466
e_p	0.176
sin(i_p)	0.089
G	0.150
H	14.240
Mass
D	8.04	0.353
pV	0.072	0.0192

	Value
Rotational Period
Period quality	None
Spectral Class	B
Spectral Class Score	5.865

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.4659	0.1760	0.0889	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
7.01	1.560	1.560	Masiero	2020PSJ.....1....5M	NEATM
7.23	1.530	1.530	Masiero	2012ApJ...759L...8M	NEATM
7.30	1.820	1.820	Masiero	2020PSJ.....1....5M	NEATM
8.05	1.960	1.960	Nugent	2016AJ....152...63N	NEATM
8.19	0.400	0.400	Usui	2011PASJ...63.1117U	NEATM
8.29	1.660	1.660	Ali-Lagoa	2018A&A...612A..85A	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.060	0.0500	0.0500	Nugent	2016AJ....152...63N	NEATM
0.063	0.0390	0.0390	Masiero	2020PSJ.....1....5M	NEATM
0.073	0.0290	0.0290	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.090	0.0550	0.0550	Masiero	2020PSJ.....1....5M	NEATM
0.102	0.0840	0.0840	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
14.24			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
B				DeMeo-Carry	VIS	DeMeo	2013Icar..226..723D	PHOT
B	B	0.6441	0.6441	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
C		0.240		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
C		0.56		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT