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212305 (2005 NT78)
Classification: Main-belt Asteroid          SPK-ID: 2212305
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3295804442327949 5.9712e-08  
a 2.666341933107501 1.4224e-08 au
q 1.787567774317402 1.5844e-07 au
i 7.752252134121924 8.4402e-06 deg
node 164.7778664568986 4.6602e-05 deg
peri 128.8132778313926 4.9333e-05 deg
M 155.2771187221682 1.3636e-05 deg
tp 2458314.574175261071
(2018-Jul-15.07417526)
5.7099e-05 TDB
period 1590.274851427681
4.35
1.2725e-05
3.484e-08
d
yr
n .2263759624173188 1.8114e-09 deg/d
Q 3.5451160918976 1.8912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      6236 days (17.07 yr)  
   first obs. used      2001-10-10  
   last obs. used      2018-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6089  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:05:22  

Additional Information
 Earth MOID = .784092 au 
 Jupiter MOID = 1.75225 au 
 T_jup = 3.291 
[ 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 16.7   n/a MPO454524  

212305 (2005 NT78)          Discovered 2005-Jul-12 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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