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134636 (1999 UB20)
Classification: Main-belt Asteroid          SPK-ID: 2134636
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .183294310288026 3.6651e-08  
a 2.326597026798504 9.4912e-09 au
q 1.900145029453301 8.3916e-08 au
i 21.8100901051468 5.575e-06 deg
node 188.9468742002893 9.1313e-06 deg
peri 65.49300633230392 1.735e-05 deg
M 77.72976466650731 1.2994e-05 deg
tp 2458920.624403569741
(2020-Mar-12.12440357)
4.6854e-05 TDB
period 1296.224363307601
3.55
7.9318e-06
2.172e-08
d
yr
n .2777296972581051 1.6995e-09 deg/d
Q 2.753049024143708 1.1231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      21974 days (60.16 yr)  
   first obs. used      1960-09-28  
   last obs. used      2020-11-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50981  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:09:14  

Additional Information
 Earth MOID = .978197 au 
 Jupiter MOID = 2.40425 au 
 T_jup = 3.457 
[ 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 16.08   n/a E2021B55  

134636 (1999 UB20)          Discovered 1999-Oct-31 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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