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3923 Radzievskij (1976 SN3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003923
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2210664203055252 3.4916e-08  
a 3.959390564553754 2.7108e-08 au
q 3.084102265856383 1.3491e-07 au
i 3.492341247046194 3.8333e-06 deg
node 152.0817311500072 6.5629e-05 deg
peri 283.209858349236 6.6209e-05 deg
M 151.814102784096 1.0325e-05 deg
tp 2457786.969882788484
7.6846e-05 TDB
period 2877.669690657436
n .1251012238022891 1.2848e-09 deg/d
Q 4.834678863251126 3.3101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2412  
   data-arc span      15971 days (43.73 yr)  
   first obs. used      1976-09-24  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45178  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:02:56  

Additional Information
 Earth MOID = 2.10183 au 
 Jupiter MOID = .523873 au 
 T_jup = 3.012 
[ 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 11.7   n/a MPO473820  
diameter diameter 29.870 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (  
rotation period rot_per 40.05 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Dahlgren, M.; Lahulla, J.F.; Lagerkvist, C.-I.; Lagerros, J.; et al. (1998) Icarus 133, 247-285.]
[Warner, B.D.; Stephens, R.D.; Coley, D.R. (2017) Minor Planet Bull. 44, 130-137.]
[Williamson, B.; Sonnett, S.; Witry, J.; Chatelain, J.; et al. (2019) Minor Planet Bull. 46, 332-334.]
geometric albedo albedo 0.050   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (  

3923 Radzievskij (1976 SN3)          Discovered 1976-Sep-24 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1976 SN3 = 1976 UW20 = 1984 UC = 1985 YK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Sep-18 19:24 UT
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