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135681 (2002 NM56)
Classification: Main-belt Asteroid          SPK-ID: 2135681
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2091945651060208 6.0986e-08  
a 2.417687445864882 1.8966e-08 au
q 1.911920372064892 1.5826e-07 au
i 11.55745138836232 5.3694e-06 deg
node 141.7042247033635 2.398e-05 deg
peri 98.13927736785259 2.8316e-05 deg
M .6247837430644451 2.1452e-05 deg
tp 2459198.116989917819
(2020-Dec-14.61698992)
8.1798e-05 TDB
period 1373.088911336779
3.76
1.6157e-05
4.424e-08
d
yr
n .2621825848477065 3.0851e-09 deg/d
Q 2.923454519664872 2.2934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      8056 days (22.06 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:14:06  

Additional Information
 Earth MOID = .939136 au 
 Jupiter MOID = 2.20023 au 
 T_jup = 3.458 
[ 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 16.63   n/a E2021B55  
diameter diameter 3.441 km 0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135681 (2002 NM56)          Discovered 2002-Jul-09 by LINEAR at Socorro
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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