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85760 (1998 SG170)
Classification: Main-belt Asteroid          SPK-ID: 2085760
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302628991004539 3.7289e-08  
a 2.339245127013542 1.3647e-08 au
q 2.034528275062149 9.1455e-08 au
i 10.57493434895037 4.9294e-06 deg
node 222.1387744061979 2.277e-05 deg
peri 51.67266767040574 3.0826e-05 deg
M 100.2880234706954 2.2348e-05 deg
tp 2458636.452042837903
(2019-Jun-01.95204284)
7.9662e-05 TDB
period 1306.808729924271
3.58
1.1436e-05
3.131e-08
d
yr
n .2754802533503598 2.4108e-09 deg/d
Q 2.643961978964936 1.5425e-08 au
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      8076 days (22.11 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5634  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:54  

Additional Information
 Earth MOID = 1.03719 au 
 Jupiter MOID = 2.45187 au 
 T_jup = 3.531 
[ 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 15.8   n/a MPO395766  
diameter diameter 2.885 km 0.615 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.134   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85760 (1998 SG170)          Discovered 1998-Sep-19 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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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
1995-May-03 23:42 < 00:01 Amphi 0.0347553663786516 0.0347527039789139 0.0347580288492624 6.05040066901711 6.05040064167909 2449841.487646834 0.388402098369711 155.728860493017 36.8479723002847 32.5660950333215 80975.2745379579 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:55 2020-Nov-12 20:59

Alternate Designations
 1998 SG170 = 2001 KG59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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