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79693 (1998 SC61)
Classification: Main-belt Asteroid          SPK-ID: 2079693
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .133840398082213 8.6919e-08  
a 2.305439476673042 6.4546e-09 au
q 1.996878539360673 2.0075e-07 au
i 3.873884882943552 7.8065e-06 deg
node 163.2289953734617 6.7884e-05 deg
peri 200.8544065369169 6.9178e-05 deg
M 69.81512729292817 1.2456e-05 deg
tp 2458752.543185435570
(2019-Sep-26.04318544)
4.4065e-05 TDB
period 1278.583262745649
3.50
5.3695e-06
1.47e-08
d
yr
n .2815616397378225 1.1824e-09 deg/d
Q 2.614000413985411 7.3185e-09 au
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      10341 days (28.31 yr)  
   first obs. used      1991-10-05  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5623  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:45:09  

Additional Information
 Earth MOID = .99494 au 
 Jupiter MOID = 2.83795 au 
 T_jup = 3.573 
[ 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 15.9   n/a MPO296683  
diameter diameter 4.079 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79693 (1998 SC61)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1998 SC61 = 2000 DY44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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