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3493 Stepanov (1976 GR6)
Classification: Main-belt Asteroid          SPK-ID: 2003493
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08802600113254475 8.9934e-09  
a 2.203195779110057 5.01e-09 au
q 2.009257264962898 1.9587e-08 au
i 5.976845124292963 6.6231e-07 deg
node 122.1220291698908 2.4734e-06 deg
peri 76.41780827306815 7.6537e-06 deg
M 249.3045482183032 7.6243e-06 deg
tp 2459567.786816164203
(2021-Dec-19.28681616)
2.5826e-05 TDB
period 1194.477746744927
3.27
4.0743e-06
1.115e-08
d
yr
n .3013869458690516 1.028e-09 deg/d
Q 2.397134293257217 5.451e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2974  
   data-arc span      16416 days (44.94 yr)  
   first obs. used      1976-04-03  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:11:38  

Additional Information
 Earth MOID = 1.01661 au 
 Jupiter MOID = 2.57076 au 
 T_jup = 3.651 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.19   n/a E2021B10  
diameter diameter 6.300 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.112 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2012) Minor Planet Bull. 39, 226-228.]
[Moravec, P.; Letfullina, A.; Ditteon, R. (2013) Minor Planet Bull. 40, 17-20.]
[Lang, K. (2017) Minor Planet Bull. 44, 7-8.]
geometric albedo albedo 0.281   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3493 Stepanov (1976 GR6)          Discovered 1976-Apr-03 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1976 GR6 = 1930 EC = 1976 KL1 = 1983 NO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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