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843 Nicolaia (A916 SO)
Classification: Main-belt Asteroid          SPK-ID: 2000843
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2095417710662372 3.9709e-08  
a 2.279135271866619 5.6064e-09 au
q 1.801561230500158 9.1379e-08 au
i 7.997746967029213 4.8833e-06 deg
node 4.057467410020764 2.6367e-05 deg
peri 317.0100941673849 2.7944e-05 deg
M 72.5228696363375 9.322e-06 deg
tp 2458747.321944614303
(2019-Sep-20.82194461)
3.2397e-05 TDB
period 1256.763561561873
3.44
4.6372e-06
1.27e-08
d
yr
n .2864500618975628 1.057e-09 deg/d
Q 2.756709313233081 6.7812e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1880  
   data-arc span      37931 days (103.85 yr)  
   first obs. used      1916-09-30  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47781  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:23:21  

Additional Information
 Earth MOID = .799226 au 
 Jupiter MOID = 2.59573 au 
 T_jup = 3.565 
[ 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 13.8   n/a MPO279521  

843 Nicolaia (A916 SO)          Discovered 1916-Sep-30 by Thiele, H. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A916 SO = 1978 RS5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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