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JPL Small-Body Database Browser
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49270 (1998 UB9)
Classification: Main-belt Asteroid          SPK-ID: 2049270
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0399185081949873 3.2095e-08  
a 2.637418120771821 1.1725e-08 au
q 2.532136323904183 8.6533e-08 au
i 2.062478118598597 4.5111e-06 deg
node 218.5563654403428 0.00011234 deg
peri 234.8799628916882 0.00013036 deg
M 230.9374469236501 6.5898e-05 deg
tp 2459161.373158532432
(2020-Nov-07.87315853)
0.00028722 TDB
period 1564.468796400057
4.28
1.0433e-05
2.856e-08
d
yr
n .2301100544979759 1.5345e-09 deg/d
Q 2.742699917639459 1.2193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      857  
   data-arc span      9599 days (26.28 yr)  
   first obs. used      1993-08-14  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55329  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:18:14  

Additional Information
 Earth MOID = 1.54952 au 
 Jupiter MOID = 2.32205 au 
 T_jup = 3.395 
[ 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 15.3   n/a MPO449316  

49270 (1998 UB9)          Discovered 1998-Oct-17 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 UB9 = 2000 CQ52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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