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JPL Small-Body Database Browser
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4979 Otawara (1949 PQ)
Classification: Main-belt Asteroid          SPK-ID: 2004979
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 110 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446870161024233 3.6004e-08  
a 2.168155976259312 6.1203e-09 au
q 1.854451957609715 7.7333e-08 au
i .9103955392183859 3.4653e-06 deg
node 69.77645570164606 0.00026548 deg
peri 206.7845277406824 0.00026583 deg
M 339.5705336665162 1.4353e-05 deg
tp 2458666.674204772817
4.6552e-05 TDB
period 1166.095742754118
n .3087225060523262 1.3072e-09 deg/d
Q 2.481859994908908 7.0058e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2127  
   data-arc span      25657 days (70.25 yr)  
   first obs. used      1949-08-02  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50857  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:41:29  

Additional Information
 Earth MOID = .837571 au 
 Jupiter MOID = 2.61971 au 
 T_jup = 3.677 
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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 14.3   n/a MPO337294  
diameter diameter 3.204 km 0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 2.707 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Doressoundiram, A.; Weissman, P.R.; Fulchignoni, M.; Barucci, M.A.; et al. (1999) Astron. Astrophys. 352, 697-702.]
[Le Bras, A.; Dotto, E.; Fulchignoni, M.; Doressoundiram, A.; et al. (2001) Astron. Astrophys. 379, 660-663.]
[Fauvaud, S.; Fauvaud, M.; Paschke, A. (2003) Minor Planet Bull. 30, 73.]
[Fornasier, S.; Barucci, M.A.; Binzel, R.P.; Birlan, M.; et al. (2003) Astron. Astrophys. 398, 327-333.]
[Galad, A. (2009) Minor Planet Bull. 36, 183-186.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.244   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

4979 Otawara (1949 PQ)          Discovered 1949-Aug-02 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1949 PQ = 1977 DW10 = 1978 SW4 = 1978 TY5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2019-Dec-05 15:49 UT
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