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2880 Nihondaira (1983 CA)
Classification: Main-belt Asteroid          SPK-ID: 2002880
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1680559848108568 3.08e-08  
a 2.202976734566076 7.728e-09 au
q 1.832753309923169 6.7958e-08 au
i 5.738832133810329 4.6151e-06 deg
node 39.6601802470093 3.4751e-05 deg
peri 247.0074354680326 3.8493e-05 deg
M 253.3951311630492 1.931e-05 deg
tp 2458954.161538777085
(2020-Apr-14.66153878)
6.4813e-05 TDB
period 1194.299616413208
3.27
6.2844e-06
1.721e-08
d
yr
n .3014318978692914 1.5861e-09 deg/d
Q 2.573200159208983 9.0267e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2433  
   data-arc span      22125 days (60.57 yr)  
   first obs. used      1958-10-12  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43418  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 22:29:44  

Additional Information
 Earth MOID = .825223 au 
 Jupiter MOID = 2.58767 au 
 T_jup = 3.638 
[ 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 12.7   n/a MPO358656  
diameter diameter 7.051 km 0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 17.97 h n/a LCDB (Rev. 2019-January); 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:
[Almeida, R.; Angeli, C.A.; Duffard, R.; Lazzaro, D. (2004) Astron. Astrophys. 415, 403-406.]
geometric albedo albedo 0.354   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2880 Nihondaira (1983 CA)          Discovered 1983-Feb-08 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1983 CA = 1935 RH = 1935 SW = 1948 QK = 1951 LU = 1958 TK = 1967 GM = 1971 UW1 = 1977 JK = 1980 FL10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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