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1859 Kovalevskaya (1972 RS2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001859
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09840002802695173 3.6019e-08  
a 3.211547635561591 1.5804e-08 au
q 2.89553125821244 1.1734e-07 au
i 7.698180062145442 4.2365e-06 deg
node 343.2784797026891 2.7699e-05 deg
peri 245.2522325228334 3.6322e-05 deg
M 209.8684384276002 2.6297e-05 deg
tp 2459877.176732212145
(2022-Oct-24.67673221)
0.00015671 TDB
period 2102.180382931506
5.76
1.5518e-05
4.249e-08
d
yr
n .1712507655969929 1.2641e-09 deg/d
Q 3.527564012910742 1.736e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2893  
   data-arc span      38375 days (105.07 yr)  
   first obs. used      1915-10-02  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:14:47  

Additional Information
 Earth MOID = 1.89732 au 
 Jupiter MOID = 1.53483 au 
 T_jup = 3.170 
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Orbital Elements at Epoch 2456561.5 (2013-Sep-26.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1020120539199373 3.5321e-08  
q 2.879537947245931 1.15e-07 au
tp 2455682.725510502883
(2011-May-01.22551050)
0.00014094 TDB
node 343.3512183170863 2.7684e-05 deg
peri 246.3019329307692 3.6032e-05 deg
i 7.707113294991443 4.2368e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2893  
   data-arc span      38375 days (105.07 yr)  
   first obs. used      1915-10-02  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:14:47  

Additional Information
 Jupiter MOID = 1.53483 au 
 T_jup = 3.170 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.247541878233107E-15 -4.031687935716466E-15 -1.059826175700831E-12 -1.945310178465262E-15 -1.792649508718522E-13 1.094455405856564E-15
q -4.031687935716466E-15 1.322388501026416E-14 3.988484989039247E-12 6.286576365124093E-15 6.810557242533753E-13 -3.12146923619358E-15
tp -1.059826175700831E-12 3.988484989039247E-12 1.986517032979363E-8 -3.679307704466087E-12 3.268150519485212E-9 -2.914446175011998E-13
node -1.945310178465262E-15 6.286576365124093E-15 -3.679307704466087E-12 7.663940900939481E-10 -7.598629160307688E-10 2.06944345876177E-11
peri -1.792649508718522E-13 6.810557242533753E-13 3.268150519485212E-9 -7.598629160307688E-10 1.298276425996741E-9 -2.054583734404929E-11
i 1.094455405856564E-15 -3.12146923619358E-15 -2.914446175011998E-13 2.06944345876177E-11 -2.054583734404929E-11 1.795084501475302E-11

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 10.7   n/a MPO313433  
diameter diameter 44.634 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.1140 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Aznar Macias, A. (2016) Minor Planet Bull. 43, 350-353]
geometric albedo albedo 0.053   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1859 Kovalevskaya (1972 RS2)          Discovered 1972-Sep-04 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1972 RS2 = 1932 RD = 1941 BQ = 1942 HH = 1949 PU = 1949 QW = 1950 TM4 = 1953 EK1 = 1966 PC1 = A915 TK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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