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70144 (1999 NH20)
Classification: Main-belt Asteroid          SPK-ID: 2070144
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1862452869865924 4.3632e-08  
a 2.381141510091013 1.1889e-08 au
q 1.937665126188424 1.0304e-07 au
i 6.789738520508852 4.6479e-06 deg
node 112.2762073218981 4.7022e-05 deg
peri 193.0080310530652 4.9264e-05 deg
M 237.7860091235151 1.781e-05 deg
tp 2459456.111483090691
(2021-Aug-29.61148309)
6.8383e-05 TDB
period 1342.073298943449
3.67
1.0052e-05
2.752e-08
d
yr
n .2682416826885768 2.0091e-09 deg/d
Q 2.824617893993602 1.4104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      9134 days (25.01 yr)  
   first obs. used      1995-04-26  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61951  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:35:00  

Additional Information
 Earth MOID = .92314 au 
 Jupiter MOID = 2.41621 au 
 T_jup = 3.505 
[ 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 16.3   n/a MPO459315  

70144 (1999 NH20)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NH20 = 1995 HC5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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