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71987 (2000 WU160)
Classification: Main-belt Asteroid          SPK-ID: 2071987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04397523698965242 3.2719e-08  
a 2.300105930446693 9.1715e-09 au
q 2.198958227053995 7.505e-08 au
i 7.304754491183431 3.8386e-06 deg
node 165.9046861844102 2.8124e-05 deg
peri 329.6950641533005 5.2214e-05 deg
M 144.5132587902441 4.434e-05 deg
tp 2458489.023862063374
(2019-Jan-05.52386206)
0.00015627 TDB
period 1274.148899544544
3.49
7.6209e-06
2.086e-08
d
yr
n .2825415460694469 1.6899e-09 deg/d
Q 2.401253633839392 9.5748e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1092  
   data-arc span      8646 days (23.67 yr)  
   first obs. used      1996-10-15  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:41:26  

Additional Information
 Earth MOID = 1.21424 au 
 Jupiter MOID = 2.58893 au 
 T_jup = 3.580 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457075.5 (2015-Feb-22.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04447246322874941 3.2726e-08  
q 2.196811555290435 7.5163e-08 au
tp 2457215.900511483796
(2015-Jul-12.40051148)
0.00015289 TDB
node 165.954532925715 2.8138e-05 deg
peri 329.6879022297245 5.1792e-05 deg
i 7.303170241730204 3.8384e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1092  
   data-arc span      8646 days (23.67 yr)  
   first obs. used      1996-10-15  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:41:26  

Additional Information
 Jupiter MOID = 2.58893 au 
 T_jup = 3.580 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.070965861038613E-15 -2.443092466372713E-15 5.412684858600486E-13 -3.663667433190075E-15 1.618826302247895E-13 -3.229351792376164E-17
q -2.443092466372713E-15 5.649516191372238E-15 -1.03380308088793E-12 7.429115788783084E-15 -3.141136613020885E-13 1.566844837278153E-16
tp 5.412684858600486E-13 -1.03380308088793E-12 2.337524188956221E-8 -1.457459472534027E-11 6.658789972167937E-9 1.742479938323418E-12
node -3.663667433190075E-15 7.429115788783084E-15 -1.457459472534027E-11 7.917743911166846E-10 -7.891463605534869E-10 8.261056239925354E-12
peri 1.618826302247895E-13 -3.141136613020885E-13 6.658789972167937E-9 -7.891463605534869E-10 2.682426478739296E-9 -7.670100785196798E-12
i -3.229351792376164E-17 1.566844837278153E-16 1.742479938323418E-12 8.261056239925354E-12 -7.670100785196798E-12 1.473305048474066E-11

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 15.6   n/a MPO333415  

71987 (2000 WU160)          Discovered 2000-Nov-20 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WU160 = 2000 UT89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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