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101377 (1998 UB12)
Classification: Main-belt Asteroid          SPK-ID: 2101377
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03726396451639033 4.4122e-08  
a 2.67556983727049 1.5039e-08 au
q 2.575867497793318 1.2202e-07 au
i 2.722944587314772 5.0222e-06 deg
node 182.9803455716869 9.1377e-05 deg
peri 218.7429468159442 0.00011071 deg
M 332.761397845836 6.278e-05 deg
tp 2459121.449806961927
(2020-Sep-28.94980696)
0.00027882 TDB
period 1598.537629055143
4.38
1.3478e-05
3.69e-08
d
yr
n .2252058340426977 1.8988e-09 deg/d
Q 2.775272176747662 1.56e-08 au
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1998-10-17  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59214  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:10  

Additional Information
 Earth MOID = 1.58384 au 
 Jupiter MOID = 2.36216 au 
 T_jup = 3.376 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO439694  

101377 (1998 UB12)          Discovered 1998-Oct-17 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 UB12 = 2000 FL5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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