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2170 Byelorussia (1971 SZ)
Classification: Main-belt Asteroid          SPK-ID: 2002170
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811718025546493 3.9979e-08  
a 2.404885067407673 7.5318e-09 au
q 1.969187704808666 9.4889e-08 au
i 2.08078557679527 3.8191e-06 deg
node 255.8305318611837 0.00010861 deg
peri 116.4849421753631 0.00010906 deg
M 62.16837142412663 1.0709e-05 deg
tp 2458965.262310397215
(2020-Apr-25.76231040)
4.006e-05 TDB
period 1362.196987263162
3.73
6.3994e-06
1.752e-08
d
yr
n .264278957717627 1.2415e-09 deg/d
Q 2.840582430006681 8.8964e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1997  
   data-arc span      25969 days (71.10 yr)  
   first obs. used      1949-12-14  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:00:52  

Additional Information
 Earth MOID = .969067 au 
 Jupiter MOID = 2.63256 au 
 T_jup = 3.500 
[ 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 13.9   n/a MPO344314  
diameter diameter 9.427 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.768 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.049   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2170 Byelorussia           Discovered 1971 Sept. 16 at the Crimean Astrophysical Observatory.
Named for one of the Soviet Socialist Republics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5285Last Updated: 2007-10-23

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2174-Mar-22 08:13 < 00:01 Hebe 0.0430146125047534 0.0430038634522311 0.0430253625387383 4.96386292867051 4.96386289955518 2515177.842395389 0.593274736759746 626.203906495854 19.6517723080358 -31.1845704538481 169704.340045958 T 30 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:58 2021-Feb-24 01:00

Alternate Designations
 1971 SZ = 1949 XH = 1975 XC6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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