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JPL Small-Body Database Browser
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13781 (1998 UO15)
Classification: Main-belt Asteroid          SPK-ID: 2013781
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1764340232931128 4.5706e-08  
a 2.478255827835633 1.0691e-08 au
q 2.041007181380988 1.1595e-07 au
i .3381081011688429 4.4661e-06 deg
node 282.16040410532 0.00068272 deg
peri 54.3283894544223 0.0006828 deg
M 242.5334606232876 1.0695e-05 deg
tp 2459465.474680533579
(2021-Sep-07.97468053)
4.2971e-05 TDB
period 1425.009078161994
3.90
9.2214e-06
2.525e-08
d
yr
n .2526299695327804 1.6348e-09 deg/d
Q 2.915504474290277 1.2578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1149  
   data-arc span      12150 days (33.26 yr)  
   first obs. used      1986-10-02  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56326  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:15:04  

Additional Information
 Earth MOID = 1.03152 au 
 Jupiter MOID = 2.45889 au 
 T_jup = 3.458 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456443.5 (2013-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760959654158558 4.5822e-08  
q 2.042513212721799 1.1629e-07 au
tp 2456610.634102462976
(2013-Nov-14.13410246)
4.2382e-05 TDB
node 282.9133739682138 0.00067477 deg
peri 52.8377368558718 0.00067486 deg
i .3403087652906446 4.4862e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1149  
   data-arc span      12150 days (33.26 yr)  
   first obs. used      1986-10-02  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56326  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:15:04  

Additional Information
 Jupiter MOID = 2.45889 au 
 T_jup = 3.458 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.099637714698624E-15 -5.314610372876305E-15 -5.378446222140858E-13 2.72767715512638E-14 -1.302291526066308E-13 9.121460051373937E-17
q -5.314610372876305E-15 1.352331113658343E-14 1.273011269543188E-12 -6.852876892671664E-14 3.058927303144535E-13 -1.788587169413057E-16
tp -5.378446222140858E-13 1.273011269543188E-12 1.796258031866144E-9 -2.621179302076868E-11 4.822102657924764E-10 7.034076546583364E-14
node 2.72767715512638E-14 -6.852876892671664E-14 -2.621179302076868E-11 4.553110336282087E-7 -4.553081183473627E-7 9.562465116213458E-10
peri -1.302291526066308E-13 3.058927303144535E-13 4.822102657924764E-10 -4.553081183473627E-7 4.55429951247511E-7 -9.562132019412952E-10
i 9.121460051373937E-17 -1.788587169413057E-16 7.034076546583364E-14 9.562465116213458E-10 -9.562132019412952E-10 2.012608709974884E-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 14.9   n/a MPO337375  

13781 (1998 UO15)          Discovered 1998-Oct-23 by Korlevic, K. at Visnjan
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UO15 = 1986 TY18 = 1996 DQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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