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27068 (1998 SU74)
Classification: Main-belt Asteroid          SPK-ID: 2027068
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1453475260392776 3.6259e-08  
a 2.442729012038927 9.0539e-09 au
q 2.0876843933547 8.8069e-08 au
i 5.751588363495922 4.1423e-06 deg
node 64.63672791702858 3.4706e-05 deg
peri 154.8426218272425 3.6832e-05 deg
M 39.07468887499603 1.2534e-05 deg
tp 2458849.142344985833
(2019-Dec-31.64234499)
4.8351e-05 TDB
period 1394.477022694037
3.82
7.7528e-06
2.123e-08
d
yr
n .2581612992837301 1.4353e-09 deg/d
Q 2.797773630723154 1.037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1772  
   data-arc span      18387 days (50.34 yr)  
   first obs. used      1970-04-10  
   last obs. used      2020-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53518  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:25:23  

Additional Information
 Earth MOID = 1.08108 au 
 Jupiter MOID = 2.17699 au 
 T_jup = 3.479 
[ 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 14.3   n/a MPO384979  
diameter diameter 6.103 km 2.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 4.011 h n/a LCDB (Rev. 2019-August); 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:
[Warner, B.D. (2008) Minor Planet Bull. 35, 163-167.]
geometric albedo albedo 0.083   0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

27068 (1998 SU74)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SU74 = 1970 GB1 = 2000 AW159 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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