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JPL Small-Body Database Browser
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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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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660376469689072 4.8234e-08  
a 2.756699489202719 1.5026e-08 au
q 2.298983592615111 1.3612e-07 au
i 8.661991744232262 5.2901e-06 deg
node 333.962877136002 3.0188e-05 deg
peri 8.600631384431914 3.3102e-05 deg
M 7.676543735871531 1.4016e-05 deg
tp 2458964.851127928485
(2020-Apr-25.35112793)
6.497e-05 TDB
period 1671.793242807409
4.58
1.3669e-05
3.742e-08
d
yr
n .2153376331366546 1.7607e-09 deg/d
Q 3.214415385790327 1.7521e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1978  
   data-arc span      24836 days (68.00 yr)  
   first obs. used      1951-09-04  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45385  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:00:28  

Additional Information
 Earth MOID = 1.29115 au 
 Jupiter MOID = 2.18571 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 13.1   n/a MPO395034  
diameter diameter 5.977 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
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

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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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