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30623 (4226 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2030623
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1285299448997526 3.2986e-08  
a 2.402546433300741 7.1026e-09 au
q 2.0937472726095 8.1174e-08 au
i 1.71079150703078 3.2954e-06 deg
node 264.372899341546 0.00011745 deg
peri 236.882256674121 0.00011833 deg
M 294.1132254642789 1.5506e-05 deg
tp 2459449.444111680069
(2021-Aug-22.94411168)
5.8966e-05 TDB
period 1360.210464639405
3.72
6.0317e-06
1.651e-08
d
yr
n .264664924553008 1.1736e-09 deg/d
Q 2.711345593991982 8.0155e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1270  
   data-arc span      22085 days (60.47 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:38:39  

Additional Information
 Earth MOID = 1.10711 au 
 Jupiter MOID = 2.3062 au 
 T_jup = 3.513 
[ 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 15.46   n/a E2021B10  
diameter diameter 2.086 km 0.488 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.256   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30623 (4226 P-L)          Discovered 1960-Sep-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4226 P-L = 1977 EY7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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