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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219371720221287 4.8841e-08  
a 2.371247627434038 1.3939e-08 au
q 2.08210439758055 1.1641e-07 au
i 3.261747931440643 5.9879e-06 deg
node 21.0046327742997 7.9849e-05 deg
peri 303.7165023183465 8.3704e-05 deg
M 313.2786091919081 2.6768e-05 deg
tp 2457773.592022534765
(2017-Jan-20.09202253)
9.9552e-05 JED
period 1333.717319513594
3.65
1.176e-05
3.22e-08
d
yr
n .2699222651853182 2.38e-09 deg/d
Q 2.660390857287527 1.5638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      8991 days (24.62 yr)  
   first obs. used      1991-08-07  
   last obs. used      2016-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48122  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:45:52  

Additional Information
 Earth MOID = 1.0717 au 
 Jupiter MOID = 2.61944 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 14.7 mag n/a MPO337456  

23489 (1991 PU16)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar
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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