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189001 (4889 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2189001
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2451880494789971 1.2433e-07  
a 2.91649919226863 1.1239e-08 au
q 2.201408444009214 3.6133e-07 au
i 14.43656471492805 7.651e-06 deg
node 183.2314738613444 2.6903e-05 deg
peri 234.5722594362592 3.5727e-05 deg
M 40.99138578877419 1.5349e-05 deg
tp 2459189.351726717997
(2020-Dec-05.85172672)
7.7762e-05 TDB
period 1819.245115688273
4.98
1.0516e-05
2.879e-08
d
yr
n .1978842745793502 1.1438e-09 deg/d
Q 3.631589940528046 1.3995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      22025 days (60.30 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47755  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:48:53  

Additional Information
 Earth MOID = 1.24486 au 
 Jupiter MOID = 1.93242 au 
 T_jup = 3.190 
[ 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 16.25   n/a E2021B55  
diameter diameter 3.363 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.055   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

189001 (4889 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 4889 P-L = 2005 UY114 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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