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JPL Small-Body Database Browser
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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 79 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06632125932282655 3.8911e-08  
a 3.188001812207489 1.5572e-08 au
q 2.976569517298435 1.241e-07 au
i 1.143016604010921 4.3852e-06 deg
node 331.5647801666764 0.00022012 deg
peri 210.2318253208304 0.00022283 deg
M 291.799855499985 3.6363e-05 deg
tp 2458994.375584191987
0.00021089 TDB
period 2079.104250418182
n .1731514905650312 1.2687e-09 deg/d
Q 3.399434107116543 1.6605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2806  
   data-arc span      46412 days (127.07 yr)  
   first obs. used      1892-09-30  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47141  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:50:31  

Additional Information
 Earth MOID = 1.97954 au 
 Jupiter MOID = 1.56507 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 8.31   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
diameter diameter 62.483 km 0.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.4416 h n/a LCDB (Rev. 2019-January); 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,]
[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] (  
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.DBLast 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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