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JPL Small-Body Database Browser
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48847 (1998 EW6)
Classification: Inner Main-belt Asteroid          SPK-ID: 2048847
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08684288749611313 7.6493e-08  
a 1.936956822629243 7.2337e-09 au
q 1.768745899196823 1.4986e-07 au
i 20.89618044185281 8.6891e-06 deg
node 12.53614911311843 1.075e-05 deg
peri 142.0131760966059 3.66e-05 deg
M 121.1920299370083 3.3781e-05 deg
tp 2458669.025674398117
(2019-Jul-04.52567440)
9.1995e-05 TDB
period 984.6419544148406
2.70
5.5158e-06
1.51e-08
d
yr
n .3656151338929521 2.0481e-09 deg/d
Q 2.105167746061663 7.8619e-09 au
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      11043 days (30.23 yr)  
   first obs. used      1988-11-02  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55516  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:08  

Additional Information
 Earth MOID = .792558 au 
 Jupiter MOID = 2.8785 au 
 T_jup = 3.822 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456208.5 (2012-Oct-08.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08715908396439333 7.6454e-08  
q 1.767637688773293 1.4984e-07 au
tp 2456700.068801093671
(2014-Feb-11.56880109)
9.0007e-05 TDB
node 12.5867510866817 1.0748e-05 deg
peri 141.9346204649653 3.6496e-05 deg
i 20.90167959710012 8.6903e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      11043 days (30.23 yr)  
   first obs. used      1988-11-02  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55516  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:08  

Additional Information
 Jupiter MOID = 2.8785 au 
 T_jup = 3.822 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.845248982444946E-15 -1.1445105477818E-14 4.155127096859591E-12 -4.920564835484465E-14 1.766264850970728E-12 -1.783226993137093E-14
q -1.1445105477818E-14 2.245112121066969E-14 -7.998140964783678E-12 9.572829925845361E-14 -3.415144848037996E-12 3.60692574689847E-14
tp 4.155127096859591E-12 -7.998140964783678E-12 8.10125828236343E-9 -4.872025161242812E-11 3.133952456818507E-9 3.657890401209134E-12
node -4.920564835484465E-14 9.572829925845361E-14 -4.872025161242812E-11 1.155168342132779E-10 -1.264013393746863E-10 -4.983109776941422E-12
peri 1.766264850970728E-12 -3.415144848037996E-12 3.133952456818507E-9 -1.264013393746863E-10 1.331957057111912E-9 5.084712137241162E-12
i -1.783226993137093E-14 3.60692574689847E-14 3.657890401209134E-12 -4.983109776941422E-12 5.084712137241162E-12 7.552143862594085E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO474367  

48847 (1998 EW6)          Discovered 1998-Mar-03 by ODAS at Caussols
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 EW6 = 1999 VP13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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