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118291 (1998 SU46)
Classification: Main-belt Asteroid          SPK-ID: 2118291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2462089796656681 3.1959e-08  
a 2.315663463239787 6.8604e-09 au
q 1.745526324706452 7.5106e-08 au
i 2.936361488817508 4.6278e-06 deg
node 24.27112837839305 6.4919e-05 deg
peri 89.63932861613974 6.5619e-05 deg
M 45.46806515437832 9.6055e-06 deg
tp 2459037.939298470567
(2020-Jul-07.43929847)
3.4023e-05 TDB
period 1287.09793020433
3.52
5.7198e-06
1.566e-08
d
yr
n .2796989969076005 1.243e-09 deg/d
Q 2.885800601773122 8.5495e-09 au
  Orbit Determination Parameters
   # obs. used (total)      822  
   data-arc span      8157 days (22.33 yr)  
   first obs. used      1998-09-25  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .542  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 21:39:13  

Additional Information
 Earth MOID = .76486 au 
 Jupiter MOID = 2.23383 au 
 T_jup = 3.538 
[ 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 16.16   n/a E2021B55  
diameter diameter 1.564 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.315   0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118291 (1998 SU46)          Discovered 1998-Sep-25 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1998 SU46 = 2001 QD331 = 2003 AT59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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