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48450 (1991 NA)
Classification: Mars-crossing Asteroid          SPK-ID: 2048450
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3298314002251403 5.2757e-08  
a 2.385100441533297 1.0836e-08 au
q 1.598419423224769 1.2458e-07 au
i 11.7280273303407 3.7644e-06 deg
node 277.588811630648 3.2363e-05 deg
peri 40.96789169457593 3.3594e-05 deg
M 289.6430194532699 1.0607e-05 deg
tp 2459263.443917015361
(2021-Feb-17.94391702)
4.0431e-05 TDB
period 1345.421724894211
3.68
9.1691e-06
2.51e-08
d
yr
n .2675740946789799 1.8235e-09 deg/d
Q 3.171781459841826 1.4411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      711  
   data-arc span      16070 days (44.00 yr)  
   first obs. used      1976-05-31  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:48:51  

Additional Information
 Earth MOID = .604596 au 
 Jupiter MOID = 2.19797 au 
 T_jup = 3.433 
[ 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 15.5   n/a MPO378954  

48450 (1991 NA)          Discovered 1991-Jul-07 by Helin, E. F. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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