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4841 Manjiro (1989 UO3)
Classification: Main-belt Asteroid          SPK-ID: 2004841
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1020980164234457 3.0844e-08  
a 2.31027078871946 6.5972e-09 au
q 2.074396723790174 7.1763e-08 au
i 3.880985259870184 3.3855e-06 deg
node 145.410528212841 5.4875e-05 deg
peri 288.3111971838757 5.8347e-05 deg
M 232.0354243622598 1.9078e-05 deg
tp 2459456.410943775325
(2021-Aug-29.91094378)
6.8171e-05 TDB
period 1282.604493791728
3.51
5.4939e-06
1.504e-08
d
yr
n .2806788856132431 1.2023e-09 deg/d
Q 2.546144853648747 7.2708e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2320  
   data-arc span      15979 days (43.75 yr)  
   first obs. used      1975-11-01  
   last obs. used      2019-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45931  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:23:21  

Additional Information
 Earth MOID = 1.09321 au 
 Jupiter MOID = 2.65661 au 
 T_jup = 3.575 
[ 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 13.7   n/a MPO473833  
diameter diameter 5.324 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.66 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.188   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4841 Manjiro (1989 UO3)          Discovered 1989-Oct-28 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1989 UO3 = 1975 VV = 1985 QZ3 = 1987 DO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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