1998 DQ4

1998DQ4, 1992 SK5, 1992SK5, 37841, J92S05K, J98D04Q

All data for this body: [vot]

MPC data

Name (number)	1998 DQ4 (37841)
a	2.36398
e	0.08804
i / sin(i)	7.4585 / 0.12981
q	2.15585
Q	2.57211
ω	73.1098
Node	161.5700
m	95.3581
n	0.2712
Epoch	2460800.5

n_obs	2262
n_opp	22
Years observed	1992-2025
rms	0.71

Best values

	Value	Standard error
Parent

a_p	2.365
e_p	0.107
sin(i_p)	0.129
G	0.150
H	15.070
Mass
D	3.71	0.154
pV	0.101	0.0208

	Value
Rotational Period	7.516
Period quality	2
Spectral Class	X
Spectral Class Score	6.878

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.3646	0.1073	0.1286	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
3.70	0.970	0.970	Masiero	2021PSJ.....2..162M	NEATM
3.71	0.156	0.156	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.098	0.0221	0.0221	Masiero	2011ApJ...741...68M	NEATM
0.129	0.0480	0.0760	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
15.07			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
7.51611	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve
7.526	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
D	X	0.3652	0.2230	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
D	X	0.3726	0.2230	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	X	0.7870	0.2230	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
X				DeMeo-Carry	VIS	DeMeo	2013Icar..226..723D	PHOT
X		0.44		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT
X	C			DeMeo-Carry	VIS	Choi	2023PSJ.....4...49C	PHOT
X	X	0.3330	0.2230	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT