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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218487342227216 5.0344e-08  
a 2.371447084452345 1.4446e-08 au
q 2.082489258935663 1.1953e-07 au
i 3.261764506336905 6.1765e-06 deg
node 21.00520124091989 8.0873e-05 deg
peri 303.6666324932312 8.4917e-05 deg
M 259.33574957974 2.7462e-05 deg
tp 2457773.484983836198
(2017-Jan-19.98498384)
0.00010261 JED
period 1333.885601099222
3.65
1.2188e-05
3.337e-08
d
yr
n .269888212080056 2.466e-09 deg/d
Q 2.660404909969027 1.6206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1099  
   data-arc span      8647 days (23.67 yr)  
   first obs. used      1991-08-07  
   last obs. used      2015-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47506  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:45:09  

Additional Information
 Earth MOID = 1.07071 au 
 Jupiter MOID = 2.61787 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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