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78116 (2002 NB)
Classification: Main-belt Asteroid          SPK-ID: 2078116
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 .2162613338437067 3.6698e-08  
a 3.101223378860139 1.8887e-08 au
q 2.430548674400558 1.174e-07 au
i 15.31452875550633 4.9255e-06 deg
node 273.9350422511877 1.8746e-05 deg
peri 128.8666655568154 2.3724e-05 deg
M 10.19931703334446 1.281e-05 deg
tp 2458943.984627878200
(2020-Apr-04.48462788)
7.087e-05 TDB
period 1994.793758967645
5.46
1.8223e-05
4.989e-08
d
yr
n .1804697845988394 1.6486e-09 deg/d
Q 3.77189808331972 2.2971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      11981 days (32.80 yr)  
   first obs. used      1988-01-11  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44842  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:28:11  

Additional Information
 Earth MOID = 1.47279 au 
 Jupiter MOID = 1.74424 au 
 T_jup = 3.132 
[ 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 14.5   n/a MPO502627  
diameter diameter 4.109 km 0.682 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.199   0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78116 (2002 NB)          Discovered 2002-Jul-01 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 NB = 1988 AX 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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