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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2095305330709394 3.6477e-08  
a 2.279537576456754 5.1015e-09 au
q 1.801904852906533 8.33e-08 au
i 7.997552783241337 3.4572e-06 deg
node 4.050806236752574 2.6219e-05 deg
peri 317.0656645079508 2.7175e-05 deg
M 129.7483417891971 8.741e-06 deg
tp 2458747.427319558614
(2019-Sep-20.92731956)
2.9941e-05 TDB
period 1257.096335180133
3.44
4.22e-06
1.155e-08
d
yr
n .2863742339590978 9.6134e-10 deg/d
Q 2.757170300006975 6.1704e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2238  
   data-arc span      38097 days (104.30 yr)  
   first obs. used      1916-09-30  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:50:18  

Additional Information
 Earth MOID = .797638 au 
 Jupiter MOID = 2.5954 au 
 T_jup = 3.564 
[ 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  
rotation period rot_per 22.6308 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

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

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