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43805 (1991 RQ5)
Classification: Main-belt Asteroid          SPK-ID: 2043805
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036084590245604 3.1594e-08  
a 2.457049777908077 1.0093e-08 au
q 2.202478636672383 7.8926e-08 au
i 6.483220829985587 4.7196e-06 deg
node 24.71524074787594 2.8361e-05 deg
peri 231.8326157951531 3.6041e-05 deg
M 307.3785210067804 2.1873e-05 deg
tp 2459406.126890892336
(2021-Jul-10.62689089)
8.5557e-05 TDB
period 1406.75788931701
3.85
8.6678e-06
2.373e-08
d
yr
n .2559075749522062 1.5768e-09 deg/d
Q 2.711620919143772 1.1139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1838  
   data-arc span      10781 days (29.52 yr)  
   first obs. used      1991-09-13  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:27:03  

Additional Information
 Earth MOID = 1.19339 au 
 Jupiter MOID = 2.33128 au 
 T_jup = 3.476 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.25   n/a MPCxxxxx  
diameter diameter 3.249 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.420   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43805 (1991 RQ5)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RQ5 = 1999 UM16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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