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3680 Sasha (1987 MY)
Classification: Main-belt Asteroid          SPK-ID: 2003680
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0629134570712218 1.7234e-08  
a 2.226255438805586 6.1635e-09 au
q 2.086194012826717 3.843e-08 au
i 5.502454829507574 8.4758e-07 deg
node 26.0224603086177 5.5962e-06 deg
peri 96.14954816074754 1.9035e-05 deg
M 199.38404228441 1.728e-05 deg
tp 2459741.811318406150
(2022-Jun-11.31131841)
5.8248e-05 TDB
period 1213.279660364026
3.32
5.0385e-06
1.379e-08
d
yr
n .2967164222401846 1.2322e-09 deg/d
Q 2.366316864784455 6.5512e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2693  
   data-arc span      32556 days (89.13 yr)  
   first obs. used      1931-10-17  
   last obs. used      2020-12-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:25:06  

Additional Information
 Earth MOID = 1.11009 au 
 Jupiter MOID = 2.65792 au 
 T_jup = 3.637 
[ 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 13.00   n/a E2021B10  
rotation period rot_per 5.8146 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]
[Brincat, S.M. (2017) Minor Planet Bull. 44, 1-2.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]

3680 Sasha (1987 MY)          Discovered 1987-Jun-28 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1987 MY = 1931 UA = 1958 XW = 1971 TC3 = 1971 TG3 = 1981 SG5 = 1983 GT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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