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JPL Small-Body Database Browser
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49145 (1998 SD46)
Classification: Main-belt Asteroid          SPK-ID: 2049145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07338743777530017 3.5591e-08  
a 2.415783197731464 9.0702e-09 au
q 2.23849505862933 8.5291e-08 au
i 1.709627786118546 5.3705e-06 deg
node 2.437391878424021 0.0001251 deg
peri 93.75715108175656 0.00013239 deg
M 106.5010097566128 4.2111e-05 deg
tp 2458194.770499759587
(2018-Mar-17.27049976)
0.00015997 TDB
period 1371.466997546277
3.75
7.7239e-06
2.115e-08
d
yr
n .2624926452069821 1.4783e-09 deg/d
Q 2.593071336833597 9.7359e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1025  
   data-arc span      7544 days (20.65 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50819  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:12  

Additional Information
 Earth MOID = 1.25617 au 
 Jupiter MOID = 2.50425 au 
 T_jup = 3.512 
[ 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 15.5   n/a MPO324750  

49145 (1998 SD46)          Discovered 1998-Sep-25 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SD46 = 1998 UC37 = 2000 EA37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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