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243592 (1998 RQ4)
Classification: Main-belt Asteroid          SPK-ID: 2243592
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .386195311421385 5.2686e-08  
a 2.847372120248362 2.1941e-08 au
q 1.747730357536476 1.4466e-07 au
i 24.18333670218788 6.8939e-06 deg
node 171.9757237332885 1.3708e-05 deg
peri 256.0092167811843 1.7451e-05 deg
M 150.5525976398922 1.6683e-05 deg
tp 2458266.576959637531
(2018-May-28.07695964)
7.398e-05 TDB
period 1754.950088356895
4.80
2.0284e-05
5.553e-08
d
yr
n .2051340390751835 2.371e-09 deg/d
Q 3.947013882960247 3.0414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      7945 days (21.75 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:34:59  

Additional Information
 Earth MOID = .910403 au 
 Jupiter MOID = 2.18154 au 
 T_jup = 3.072 
[ 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 15.5   n/a MPO427391  
diameter diameter 5.213 km 0.724 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243592 (1998 RQ4)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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