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15287 (1991 RX25)
Classification: Main-belt Asteroid          SPK-ID: 2015287
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2034689388165588 1.7049e-08  
a 2.163191888113642 6.6703e-09 au
q 1.723049530182571 3.9685e-08 au
i 5.056135173658562 8.33e-07 deg
node 90.5318792403782 6.4054e-06 deg
peri 253.1524706327739 9.5043e-06 deg
M 85.24013278911757 9.4572e-06 deg
tp 2458925.341703412269
(2020-Mar-16.84170341)
2.9825e-05 TDB
period 1162.093294911307
3.18
5.375e-06
1.472e-08
d
yr
n .3097857991061516 1.4329e-09 deg/d
Q 2.603334246044713 8.0275e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2177  
   data-arc span      11778 days (32.25 yr)  
   first obs. used      1988-12-11  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50005  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:54:01  

Additional Information
 Earth MOID = .721733 au 
 Jupiter MOID = 2.80723 au 
 T_jup = 3.663 
[ 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 14.57   n/a E2021B10  
diameter diameter 2.835 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.505   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15287 (1991 RX25)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RX25 = 1988 XA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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