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JPL Small-Body Database Browser
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4975 Dohmoto (1990 SZ1)
Classification: Main-belt Asteroid          SPK-ID: 2004975
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2308865021738832 3.8921e-08  
a 3.078226061647922 1.4324e-08 au
q 2.367505213373545 1.1911e-07 au
i 14.99523926187618 5.5423e-06 deg
node 179.667313088799 1.5546e-05 deg
peri 227.6911204372795 1.9378e-05 deg
M 142.8479175422265 1.0889e-05 deg
tp 2458217.754452585619
(2018-Apr-09.25445259)
5.815e-05 TDB
period 1972.646167459034
5.40
1.3769e-05
3.77e-08
d
yr
n .1824959822691954 1.2738e-09 deg/d
Q 3.788946909922299 1.7631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2070  
   data-arc span      17848 days (48.87 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48119  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:26:35  

Additional Information
 Earth MOID = 1.40292 au 
 Jupiter MOID = 1.77975 au 
 T_jup = 3.136 
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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 12.4   n/a MPO473835  
diameter diameter 17.723 km 0.502 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.9618 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Benishek, V.; Pilcher, F. (2018) Minor Planet Bull. 45, 54-55.]
geometric albedo albedo 0.107   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4975 Dohmoto (1990 SZ1)          Discovered 1990-Sep-16 by Fujii and Watanabe at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1990 SZ1 = 1981 AL1 = 1985 YF = 1987 FM1 = 1990 UX13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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