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15503 (1999 RD25)
Classification: Main-belt Asteroid          SPK-ID: 2015503
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06063675104343615 2.9339e-08  
a 2.648285145425289 1.0972e-08 au
q 2.487701738370106 7.7872e-08 au
i 3.551411463035761 3.6393e-06 deg
node 226.0367686866533 5.9136e-05 deg
peri 36.07131217272649 6.9203e-05 deg
M 68.310612113725 3.4654e-05 deg
tp 2458901.802753019727
(2020-Feb-22.30275302)
0.00015201 TDB
period 1574.147933762888
4.31
9.7827e-06
2.678e-08
d
yr
n .2286951513759229 1.4213e-09 deg/d
Q 2.808868552480473 1.1637e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1775  
   data-arc span      15378 days (42.10 yr)  
   first obs. used      1978-11-30  
   last obs. used      2021-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:24:21  

Additional Information
 Earth MOID = 1.4716 au 
 Jupiter MOID = 2.21669 au 
 T_jup = 3.386 
[ 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 14.15   n/a E2021B10  
diameter diameter 9.634 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15503 (1999 RD25)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RD25 = 1978 WU18 = 1989 GV = 1998 KJ38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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