Asteroid General Data

1987 QA (4257 Ubasti)

General information

Preliminary designation	1987 QA
Name	Ubasti
Number	4257
Group	Apollo
Absolute magnitude	15.96
Approximate diameter (m)	1 700
Approximate mass (kg)	9.12·10¹²
Number of observations	2855
Arc length (days)	14110

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	127.325121
a – orbit major semiaxis (astronomical units)	1.64699400
e – orbit eccentricity	0.46827900
ω – orbit ascending node-perihelion angle (degrees)	278.953776
Ω – longitude of orbit ascending node (degrees)	169.138853
i – orbit inclination to the ecliptic plane (degrees)	40.722681

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	303.363276	1.64709943	0.46990737	278.574862	170.500230	40.614740	0.87311527	2.113880
01/21/1858	205.590172	1.64716256	0.46962136	278.628272	170.290431	40.631286	0.87361984	2.114002
01/29/1887	107.833741	1.64711714	0.46928223	278.680592	170.103073	40.645706	0.87415433	2.113914
02/07/1916	10.016394	1.64719424	0.46895222	278.725674	169.892776	40.664322	0.87473885	2.114063
02/14/1945	272.168640	1.64719993	0.46879101	278.800590	169.700627	40.679860	0.87500741	2.114074
02/22/1974	174.787135	1.64691883	0.46873294	278.855753	169.491214	40.694959	0.87495372	2.113532
03/02/2003	77.427134	1.64704205	0.46847224	278.915639	169.299487	40.711012	0.87544858	2.113770
03/09/2032	339.853961	1.64702719	0.46831568	278.976438	169.090631	40.723705	0.87569853	2.113741
03/17/2061	242.492698	1.64713514	0.46800913	279.010211	168.899395	40.738537	0.87626086	2.113949
03/25/2090	145.072191	1.64721296	0.46771064	279.057286	168.713326	40.748120	0.87679393	2.114099
04/03/2119	47.361958	1.64714414	0.46752215	279.088216	168.512640	40.769842	0.87706778	2.113966
04/10/2148	309.603092	1.64708032	0.46718611	279.135762	168.326048	40.785332	0.87758727	2.113843
04/18/2177	212.190339	1.64697659	0.46696973	279.211171	168.111657	40.805070	0.87788838	2.113644

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