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134529 (1999 RD40)
Classification: Main-belt Asteroid          SPK-ID: 2134529
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2834778222637474 4.1627e-08  
a 2.351732835156748 8.9774e-09 au
q 1.685068732500365 9.9377e-08 au
i 11.71488164494139 4.9118e-06 deg
node 199.3432229631216 1.6875e-05 deg
peri 160.1384036527915 1.8299e-05 deg
M 327.6068562823864 6.6328e-06 deg
tp 2459319.030740682651
(2021-Apr-14.53074068)
2.4525e-05 TDB
period 1317.286985719521
3.61
7.5428e-06
2.065e-08
d
yr
n .2732889673265562 1.5649e-09 deg/d
Q 3.018396937813131 1.1522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47387  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:08:30  

Additional Information
 Earth MOID = .686168 au 
 Jupiter MOID = 2.4651 au 
 T_jup = 3.475 
[ 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 16.59   n/a E2021B55  
diameter diameter 3.711 km 0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.032   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

134529 (1999 RD40)          Discovered 1999-Sep-12 by CSS at Catalina
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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