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48446 (1990 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2048446
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2107508882358844 7.7833e-08  
a 3.169188365090756 4.3983e-08 AU
q 2.501279102161049 2.3381e-07 AU
i 10.52191605743714 9.7506e-06 deg
node 172.1875182033504 4.7642e-05 deg
peri 151.2507886805606 5.4953e-05 deg
M 92.84038597582632 3.1424e-05 deg
tp 2456269.059139413342
(2012-Dec-07.55913941)
0.00017268 JED
period 2060.727212627188
5.64
4.2899e-05
1.175e-07
d
yr
n .1746956112357257 3.6367e-09 deg/d
Q 3.837097628020463 5.3253e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      8508 days (23.29 yr)  
   first obs. used      1990-09-14  
   last obs. used      2013-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5977  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 12:14:14  

Additional Information
 Earth MOID = 1.4945 AU 
 T_jup = 3.142 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO216852  

48446 (1990 RB1)          Discovered 1990-Sep-14 by Holt, H. E. at Palomar (675)
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 RB1 = 2000 GM161 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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