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120959 (1998 UP48)
Classification: Main-belt Asteroid          SPK-ID: 2120959
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1394974051161836 3.257e-08  
a 2.210712483117361 1.0933e-08 au
q 1.902323828264535 7.1675e-08 au
i 5.098632882467191 4.0278e-06 deg
node 138.2980124934019 4.1665e-05 deg
peri 273.2882920379811 4.6043e-05 deg
M 247.0335756743778 2.3777e-05 deg
tp 2459577.241709318813
(2021-Dec-28.74170932)
8.1365e-05 TDB
period 1200.595806802135
3.29
8.9064e-06
2.438e-08
d
yr
n .2998511222181289 2.2244e-09 deg/d
Q 2.519101137970188 1.2458e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      7937 days (21.73 yr)  
   first obs. used      1998-10-01  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60701  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:56  

Additional Information
 Earth MOID = .920342 au 
 Jupiter MOID = 2.81932 au 
 T_jup = 3.639 
[ 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 17.14   n/a E2021B55  

120959 (1998 UP48)          Discovered 1998-Oct-17 by LONEOS at Anderson Mesa
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 UP48 = 2003 EP55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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