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23489 (1991 PU16)
Classification: Main-belt Asteroid          SPK-ID: 2023489
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216994701378507 5.2166e-08  
a 2.371455088044871 1.5534e-08 AU
q 2.0828502603741 1.2537e-07 AU
i 3.26010220628091 7.5573e-06 deg
node 21.08064437833459 8.2566e-05 deg
peri 302.9159775553811 8.8313e-05 deg
M 98.25330294979595 3.091e-05 deg
tp 2456436.446306814448
(2013-May-23.94630681)
0.00011468 JED
period 1333.892353865859
3.65
1.3106e-05
3.588e-08
d
yr
n .2698868457838112 2.6518e-09 deg/d
Q 2.660059915715642 1.7424e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      8209 days (22.48 yr)  
   first obs. used      1991-08-07  
   last obs. used      2014-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48911  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 23:33:03  

Additional Information
 Earth MOID = 1.07185 AU 
 T_jup = 3.532 
[ 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 14.6 mag n/a MPO266078  

23489 (1991 PU16)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar (675)
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PU16 = 1995 VB1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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