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129825 (1999 NA56)
Classification: Main-belt Asteroid          SPK-ID: 2129825
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1886789704317594 4.0019e-08  
a 2.62128347326249 1.4732e-08 au
q 2.126702406317537 1.1032e-07 au
i 12.51350581580953 3.848e-06 deg
node 229.3414003281947 1.8253e-05 deg
peri 165.0089158721813 2.1176e-05 deg
M 278.3211248265354 1.2699e-05 deg
tp 2459352.203474252472
(2021-May-17.70347425)
5.643e-05 TDB
period 1550.134602882282
4.24
1.3068e-05
3.578e-08
d
yr
n .2322378968449739 1.9578e-09 deg/d
Q 3.115864540207443 1.7511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      940  
   data-arc span      7690 days (21.05 yr)  
   first obs. used      1999-07-12  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53943  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:42:04  

Additional Information
 Earth MOID = 1.13653 au 
 Jupiter MOID = 2.31626 au 
 T_jup = 3.346 
[ 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 14.6   n/a MPO436629  
diameter diameter 4.153 km 1.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.178   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129825 (1999 NA56)          Discovered 1999-Jul-12 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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