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14884 (1991 PH16)
Classification: Main-belt Asteroid          SPK-ID: 2014884
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1245905587207114 5.0021e-08  
a 2.211572894237496 6.7171e-09 au
q 1.936031791692866 1.1067e-07 au
i 6.604035317878768 4.7344e-06 deg
node 335.1253124928132 2.5632e-05 deg
peri 355.2904535440603 2.83e-05 deg
M 280.2559282942166 1.3188e-05 deg
tp 2459266.600824744807
(2021-Feb-21.10082474)
4.4507e-05 TDB
period 1201.296784312344
3.29
5.4729e-06
1.498e-08
d
yr
n .2996761538873794 1.3653e-09 deg/d
Q 2.487113996782127 7.554e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1570  
   data-arc span      11399 days (31.21 yr)  
   first obs. used      1988-11-09  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:06:28  

Additional Information
 Earth MOID = .925299 au 
 Jupiter MOID = 2.83037 au 
 T_jup = 3.638 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO319270  
diameter diameter 3.761 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.261   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14884 (1991 PH16)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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