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3964 Danilevskij (1974 RG1)
Classification: Main-belt Asteroid          SPK-ID: 2003964
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660210786316678 4.0797e-08  
a 2.756849873611244 1.0767e-08 au
q 2.299154683968728 1.1023e-07 au
i 8.661968370831659 4.1712e-06 deg
node 333.96234653887 2.8918e-05 deg
peri 8.645609111671376 3.187e-05 deg
M 50.70977909817794 1.2509e-05 deg
tp 2458964.991102081209
(2020-Apr-25.49110208)
5.7906e-05 TDB
period 1671.930045023822
4.58
9.7952e-06
2.682e-08
d
yr
n .2153200135803952 1.2615e-09 deg/d
Q 3.214545063253759 1.2555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2560  
   data-arc span      25339 days (69.37 yr)  
   first obs. used      1951-09-04  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39709  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:14:32  

Additional Information
 Earth MOID = 1.2895 au 
 Jupiter MOID = 2.1861 au 
 T_jup = 3.307 
[ 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 13.12   n/a E2021B10  
diameter diameter 5.977 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.2569 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.]
geometric albedo albedo 0.342   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3964 Danilevskij (1974 RG1)          Discovered 1974-Sep-12 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1974 RG1 = 1951 RH = 1979 VL1 = 1983 PK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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