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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811718116158151 1.9517e-08  
a 2.404885064892908 6.673e-09 au
q 1.969187680958443 4.7836e-08 au
i 2.08078862129243 8.4265e-07 deg
node 255.8305808663238 1.077e-05 deg
peri 116.4848907427408 1.21e-05 deg
M 62.1683755995885 5.2472e-06 deg
tp 2458965.262294966745
(2020-Apr-25.76229497)
1.9456e-05 TDB
period 1362.196985126508
3.73
5.6696e-06
1.552e-08
d
yr
n .2642789581321579 1.1e-09 deg/d
Q 2.840582448827373 7.8819e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2073  
   data-arc span      26023 days (71.25 yr)  
   first obs. used      1949-12-14  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:25:42  

Additional Information
 Earth MOID = .969067 au 
 Jupiter MOID = 2.63256 au 
 T_jup = 3.500 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456598.5 (2013-Nov-02.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1824735320050043 1.969e-08  
q 1.966040615535838 4.8452e-08 au
tp 2456242.077506761535
(2012-Nov-10.57750676)
1.8163e-05 TDB
node 255.9023604084593 1.0787e-05 deg
peri 116.5448029001021 1.2093e-05 deg
i 2.079460075827341 8.4285e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2073  
   data-arc span      26023 days (71.25 yr)  
   first obs. used      1949-12-14  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:25:42  

Additional Information
 Jupiter MOID = 2.63256 au 
 T_jup = 3.500 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.877039193054302E-16 -9.480458623087224E-16 1.044712822403266E-13 2.203655181447312E-14 2.8381652630857E-14 -4.131409226278332E-16
q -9.480458623087224E-16 2.347610015474381E-15 -2.735100694433802E-13 -5.825518671477964E-14 -6.445511009924368E-14 1.568115626600176E-15
tp 1.044712822403266E-13 -2.735100694433802E-13 3.298883476547592E-10 -2.645607068526997E-11 1.066221195113156E-10 6.968568298151062E-12
node 2.203655181447312E-14 -5.825518671477964E-14 -2.645607068526997E-11 1.163629884642377E-10 -1.200879000255506E-10 -5.367262869248601E-12
peri 2.8381652630857E-14 -6.445511009924368E-14 1.066221195113156E-10 -1.200879000255506E-10 1.462433341260299E-10 7.074797564038031E-12
i -4.131409226278332E-16 1.568115626600176E-15 6.968568298151062E-12 -5.367262869248601E-12 7.074797564038031E-12 7.103928717181621E-13

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

[ hide close-approach data ]
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 32 CATAB v2.0f-lin.ifort 2021-Apr-12 13:26:40 2021-Apr-12 13:26

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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