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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035934021011116 3.1463e-08  
a 2.456868828176324 9.4491e-09 au
q 2.202353427749367 7.8279e-08 au
i 6.483405981343587 4.5114e-06 deg
node 24.7151516448191 2.7332e-05 deg
peri 231.9005097902316 3.4635e-05 deg
M 357.4815380556017 2.0217e-05 deg
tp 2459406.340207900581
(2021-Jul-10.84020790)
7.8988e-05 TDB
period 1406.602490892663
3.85
8.1147e-06
2.222e-08
d
yr
n .2559358470718586 1.4765e-09 deg/d
Q 2.711384228603281 1.0428e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      10879 days (29.79 yr)  
   first obs. used      1991-09-13  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49567  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:40:43  

Additional Information
 Earth MOID = 1.195 au 
 Jupiter MOID = 2.3305 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 14.26   n/a MPO614063  
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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