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JPL Small-Body Database Browser
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20143 (1996 RQ16)
Classification: Main-belt Asteroid          SPK-ID: 2020143
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2048026779039929 3.6761e-08  
a 2.319853587286478 6.911e-09 au
q 1.844741360265023 8.5553e-08 au
i 6.668274024023456 4.0689e-06 deg
node 176.0054229838482 3.3363e-05 deg
peri 170.8010070400456 3.457e-05 deg
M 259.6898446920363 1.0376e-05 deg
tp 2459360.109944625568
(2021-May-25.60994463)
3.7979e-05 TDB
period 1290.592958088327
3.53
5.7671e-06
1.579e-08
d
yr
n .2789415498851358 1.2465e-09 deg/d
Q 2.794965814307933 8.3264e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1775  
   data-arc span      9025 days (24.71 yr)  
   first obs. used      1995-04-23  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 01:15:41  

Additional Information
 Earth MOID = .838414 au 
 Jupiter MOID = 2.63308 au 
 T_jup = 3.541 
[ 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 14.6   n/a MPO337428  
diameter diameter 3.024 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20143 (1996 RQ16)          Discovered 1996-Sep-13 by Spacewatch at Kitt Peak
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 RQ16 = 1998 DO4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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