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213581 (2002 NK46)
Classification: Main-belt Asteroid          SPK-ID: 2213581
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066378152515633 4.2325e-08  
a 2.38638348442383 1.3077e-08 au
q 2.13190476329246 1.0522e-07 au
i 3.849541932904213 5.2563e-06 deg
node 176.9971167364469 6.0882e-05 deg
peri 128.6136442936693 6.7314e-05 deg
M 44.05077958064939 2.6627e-05 deg
tp 2459231.736929485934
(2021-Jan-17.23692949)
9.9527e-05 TDB
period 1346.507506784728
3.69
1.1068e-05
3.03e-08
d
yr
n .2673583312280447 2.1976e-09 deg/d
Q 2.640862205555201 1.4472e-08 au
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      7571 days (20.73 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57268  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:16  

Additional Information
 Earth MOID = 1.11904 au 
 Jupiter MOID = 2.55135 au 
 T_jup = 3.524 
[ 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 16.98   n/a E2021B55  

213581 (2002 NK46)          Discovered 2002-Jul-13 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2111-Jun-02 12:50 00:01 Eunom 0.0390457167058415 0.0390444133842462 0.0390470234610366 5.6010703851306 5.60107032094325 2492239.034888544 1.22208887482216 1153.47032159902 56.287121807463 -88.3770135808938 103676.157712603 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 23:43:16 2021-Apr-13 23:43
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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