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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06067933974864979 3.5593e-08  
a 2.649632973398187 1.3155e-08 au
q 2.488854993996133 9.7811e-08 au
i 3.551707372842458 4.9395e-06 deg
node 226.0933033850064 6.4282e-05 deg
peri 36.64154168054878 7.6738e-05 deg
M 22.00764172131609 4.2743e-05 deg
tp 2458904.195182423503
(2020-Feb-24.69518242)
0.00018696 TDB
period 1575.349815603308
4.31
1.1732e-05
3.212e-08
d
yr
n .2285206729542363 1.7019e-09 deg/d
Q 2.810410952800241 1.3954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1371  
   data-arc span      14772 days (40.44 yr)  
   first obs. used      1978-11-30  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49866  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:20:14  

Additional Information
 Earth MOID = 1.47444 au 
 Jupiter MOID = 2.21752 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 14.1   n/a MPO384888  
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

[ show close-approach data ]
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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