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184 Dejopeja

Classification: Main-belt Asteroid SPK-ID: 2000184

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 82 (heliocentric ecliptic J2000)

Element	Value	Uncertainty (1-sigma)	Units
e	.06593039550436003	3.8813e-08
a	3.186591875725446	1.501e-08	au
q	2.976498613047887	1.2378e-07	au
i	1.143320687776308	4.3609e-06	deg
node	331.5617661966502	0.00021584	deg
peri	210.3940833800439	0.00021846	deg
M	.9149881139386006	3.5217e-05	deg
t_p	2458995.219183880784 (2020-May-25.71918388)	0.00020325	TDB
period	2077.725135394981 5.69	1.468e-05 4.019e-08	d yr
n	.1732664219473684	1.2242e-09	deg/d
Q	3.396685138403005	1.5999e-08	au

Orbit Determination Parameters

# obs. used (total)	2917
data-arc span	46484 days (127.27 yr)
first obs. used	1892-09-30
last obs. used	2020-01-07
planetary ephem.	DE431
SB-pert. ephem.	SB431-N16
condition code	0
norm. resid. RMS	.4571
source	ORB
producer	Otto Matic
solution date	2020-Jan-28 17:17:28

Additional Information

Earth MOID = 1.979 au

Jupiter MOID = 1.56642 au

T_jup = 3.194

[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table

Parameter	Symbol	Value	Units	Sigma	Reference	Notes
absolute magnitude	H	8.4		n/a	MPO502154	IRAS observations used: 12
diameter	diameter	62.483	km	0.320	urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)
rotation period	rot_per	6.4416	h	n/a	LCDB (Rev. 2019-August); Warner et al., 2009	Published Reference List: [Tedesco, E.F. (1979) PhD Dissertation, New. Mex. State Univ. 280pp.] [Gil-Hutton, R. (1995) Rev. Mexicana Astron. Astrof. 31, 19-21.] [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durech, J. (2006) IAU 2006, poster paper.] [Marciniak, A.; Michalowski, T.; Kaasalainen, M.; Durech, J.; et al. (2007) Astron. Astrophys. 473, 633-639.] [Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.] [Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.] [Shevchenko, V.G.; Velichko, F.P.; Checha, V.A.; Krugly, Y.N. (2014) Minor Planet Bull. 41, 195-198.] [Lang, K.; Jacobsen, J.; Kristensen, L.H.; Larsen, F.R. (2018) Minor Planet Bull. 45, 197-198.]
geometric albedo	albedo	0.215		0.024	urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)
B-V	BV	0.699		0.031	EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2	#obs=6; phase (min.=.19, mean=7.02, max.=14.03) deg.
U-B	UB	0.227		0.022	EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2	#obs=6; phase (min.=.19, mean=7.02, max.=14.03) deg.
Tholen spectral type	spec_T	X		n/a	EAR-A-5-DDR-TAXONOMY-V4.0	used 4 color indices
SMASSII spectral type	spec_B	X		n/a	EAR-A-5-DDR-TAXONOMY-V4.0	based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

184 Dejopeja Discovered 1878-Feb-28 by Palisa, J. at Pola
Reference: DISCOVERY.DB	Last Updated: 2003-08-29

[ show close-approach data ]

Alternate Designations

1959 LL = A903 QB

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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