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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1679522005748304 9.5118e-09  
a 2.203068252150841 5.3966e-09 au
q 1.833058091185562 2.056e-08 au
i 5.73776507868805 6.5989e-07 deg
node 39.63889225400304 5.0689e-06 deg
peri 246.884285267207 8.4937e-06 deg
M 133.4529067500696 6.4715e-06 deg
tp 2458953.742535480159
(2020-Apr-14.24253548)
2.177e-05 TDB
period 1194.374038818451
3.27
4.3886e-06
1.202e-08
d
yr
n .3014131154057353 1.1075e-09 deg/d
Q 2.57307841311612 6.3029e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3303  
   data-arc span      22792 days (62.40 yr)  
   first obs. used      1958-10-12  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:49:30  

Additional Information
 Earth MOID = .825817 au 
 Jupiter MOID = 2.58605 au 
 T_jup = 3.638 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457496.5 (2016-Apr-18.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1676987962349704 9.5142e-09  
q 1.834190414287271 2.0577e-08 au
tp 2457759.220793413570
(2017-Jan-05.72079341)
2.3198e-05 TDB
node 39.66843076211806 5.0668e-06 deg
peri 246.8638027476744 8.4974e-06 deg
i 5.738578830720351 6.5996e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3303  
   data-arc span      22792 days (62.40 yr)  
   first obs. used      1958-10-12  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:49:30  

Additional Information
 Jupiter MOID = 2.58605 au 
 T_jup = 3.638 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.052046824726088E-17 -1.911909954402965E-16 -8.26899448455013E-14 -4.55159105163379E-15 -1.542404396483031E-14 -7.484609776250539E-16
q -1.911909954402965E-16 4.233956463629699E-16 1.41039800614996E-13 1.10752743031625E-14 2.052498951813891E-14 1.879385836753983E-15
tp -8.26899448455013E-14 1.41039800614996E-13 5.381503084367122E-10 -1.859405295441878E-11 1.61022313832238E-10 -4.410996468729938E-12
node -4.55159105163379E-15 1.10752743031625E-14 -1.859405295441878E-11 2.567266441290825E-11 -2.96989352943796E-11 3.019810403530909E-12
peri -1.542404396483031E-14 2.052498951813891E-14 1.61022313832238E-10 -2.96989352943796E-11 7.220627256115979E-11 -4.162807050132529E-12
i -7.484609776250539E-16 1.879385836753983E-15 -4.410996468729938E-12 3.019810403530909E-12 -4.162807050132529E-12 4.355489062769469E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.79   n/a MPCxxxxx  
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. 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:
[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

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 ]
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