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JPL Small-Body Database Browser
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85987 (1999 JT5)
Classification: Inner Main-belt Asteroid          SPK-ID: 2085987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06678695939048779 4.0053e-08  
a 1.911175043289554 7.1528e-09 au
q 1.783533473285261 7.7044e-08 au
i 23.51717115379122 6.2558e-06 deg
node 48.44995229497364 1.0816e-05 deg
peri 296.9953391186576 4.9851e-05 deg
M 78.82085439246931 5.1269e-05 deg
tp 2458389.205709104985
(2018-Sep-27.70570910)
0.00013702 TDB
period 965.0484672933591
2.64
5.4177e-06
1.483e-08
d
yr
n .373038258907017 2.0942e-09 deg/d
Q 2.038816613293847 7.6305e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1416  
   data-arc span      12466 days (34.13 yr)  
   first obs. used      1984-11-21  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40952  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:44:40  

Additional Information
 Earth MOID = .838972 au 
 Jupiter MOID = 3.14855 au 
 T_jup = 3.832 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456395.5 (2013-Apr-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06674188197359701 4.002e-08  
q 1.783494361605855 7.6961e-08 au
tp 2456458.411209567039
(2013-Jun-14.91120957)
0.00013377 TDB
node 48.48554907267899 1.0815e-05 deg
peri 296.6723271164527 4.9904e-05 deg
i 23.51828758278226 6.2558e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1416  
   data-arc span      12466 days (34.13 yr)  
   first obs. used      1984-11-21  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40952  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:44:40  

Additional Information
 Jupiter MOID = 3.14855 au 
 T_jup = 3.832 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.601606931766526E-15 -3.068338953939212E-15 1.125410837919047E-12 -5.019451763234292E-15 4.12403930871079E-13 9.861176840538448E-15
q -3.068338953939212E-15 5.923067968190788E-15 -1.899257655485451E-12 9.541946845008553E-15 -7.001331031938072E-13 -1.878965196070577E-14
tp 1.125410837919047E-12 -1.899257655485451E-12 1.789417785860358E-8 -7.522909597251387E-12 6.526687732353832E-9 -2.898414933294832E-11
node -5.019451763234292E-15 9.541946845008553E-15 -7.522909597251387E-12 1.169663585929575E-10 -1.09007163207437E-10 6.64125397103538E-12
peri 4.12403930871079E-13 -7.001331031938072E-13 6.526687732353832E-9 -1.09007163207437E-10 2.490404811801249E-9 -1.685813888859153E-11
i 9.861176840538448E-15 -1.878965196070577E-14 -2.898414933294832E-11 6.64125397103538E-12 -1.685813888859153E-11 3.913465759706203E-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 MPO453291  

85987 (1999 JT5)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 JT5 = 1984 WN5 = 2000 QF181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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