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JPL Small-Body Database Browser
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15689 (1981 UP25)
Classification: Main-belt Asteroid          SPK-ID: 2015689
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1954045110717754 4.8569e-08  
a 2.541551863611998 1.5753e-08 au
q 2.044921164339335 1.2502e-07 au
i 7.733667391924921 5.2127e-06 deg
node 201.2578551062027 3.5307e-05 deg
peri 1.121692119672443 3.7881e-05 deg
M 30.44366121874982 1.421e-05 deg
tp 2458875.346998037551
(2020-Jan-26.84699804)
5.8453e-05 TDB
period 1479.949483826637
4.05
1.3759e-05
3.767e-08
d
yr
n .2432515460386963 2.2615e-09 deg/d
Q 3.03818256288466 1.8831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1666  
   data-arc span      14011 days (38.36 yr)  
   first obs. used      1981-09-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46577  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:25:14  

Additional Information
 Earth MOID = 1.04185 au 
 Jupiter MOID = 1.92106 au 
 T_jup = 3.406 
[ 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 13.2   n/a MPO431679  

15689 (1981 UP25)          Discovered 1981-Oct-25 by Bus, S. J. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 UP25 = 1981 ST8 = 1999 BM23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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