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15647 (4556 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2015647
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1400396784978208 4.9955e-08  
a 2.995066742813932 1.4615e-08 au
q 2.575638559070753 1.5179e-07 au
i 3.147162695893123 4.6589e-06 deg
node 43.18566893707096 8.1187e-05 deg
peri 332.511165915336 8.2152e-05 deg
M 206.1451212716434 1.3628e-05 deg
tp 2460009.627488086753
(2023-Mar-06.12748809)
7.4381e-05 TDB
period 1893.250952577982
5.18
1.3858e-05
3.794e-08
d
yr
n .1901491186415615 1.3918e-09 deg/d
Q 3.41449492655711 1.6662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1627  
   data-arc span      21784 days (59.64 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:05:02  

Additional Information
 Earth MOID = 1.57606 au 
 Jupiter MOID = 2.04891 au 
 T_jup = 3.237 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO337391  
diameter diameter 4.807 km 1.352 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.366   0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15647 (4556 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4556 P-L = 1991 RT21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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