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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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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 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
(2017-Feb-02.46988279)
7.6846e-05 TDB
period 2877.669690657436
7.88
2.9553e-05
8.091e-08
d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457155.5 (2015-May-13.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .22309660373242 3.4907e-08  
q 3.078413076907681 1.3537e-07 au
tp 2457788.299665620890
(2017-Feb-03.79966562)
7.6252e-05 TDB
node 152.1046597900754 6.5619e-05 deg
peri 283.182602009434 6.6184e-05 deg
i 3.492648718777984 3.8341e-06 deg
  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
 Jupiter MOID = .523873 au 
 T_jup = 3.012 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.21850605070825E-15 -4.668913396309822E-15 1.854607547894464E-13 -1.536678834822632E-15 -1.633351137245271E-14 1.490820581221195E-16
q -4.668913396309822E-15 1.832593999788451E-14 -1.288597821601777E-13 6.772305035339936E-15 1.117470668939614E-13 -4.520904292100139E-16
tp 1.854607547894464E-13 -1.288597821601777E-13 5.814320825861965E-9 -3.715257351936043E-13 6.860363950831847E-10 -2.323620140857819E-13
node -1.536678834822632E-15 6.772305035339936E-15 -3.715257351936043E-13 4.305788858651174E-9 -4.297672662908171E-9 3.18083546289023E-11
peri -1.633351137245271E-14 1.117470668939614E-13 6.860363950831847E-10 -4.297672662908171E-9 4.380296471279374E-9 -3.178573195848888E-11
i 1.490820581221195E-16 -4.520904292100139E-16 -2.323620140857819E-13 3.18083546289023E-11 -3.178573195848888E-11 1.470043950645909E-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 11.7   n/a MPO473820  
diameter diameter 29.870 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
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] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

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

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Alternate Designations
 1976 SN3 = 1976 UW20 = 1984 UC = 1985 YK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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