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20030 (1992 EN30)
Classification: Main-belt Asteroid          SPK-ID: 2020030
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1466565531759491 3.1176e-08  
a 2.340917877178577 9.2181e-09 au
q 1.997606930043607 7.3653e-08 au
i 6.532762523278459 3.8531e-06 deg
node 168.0454156402284 3.1676e-05 deg
peri 141.6801116681985 3.4426e-05 deg
M 236.8562047268042 1.3786e-05 deg
tp 2459647.994526739724
(2022-Mar-09.49452674)
5.063e-05 TDB
period 1308.210691971148
3.58
7.7272e-06
2.116e-08
d
yr
n .2751850311340673 1.6254e-09 deg/d
Q 2.684228824313547 1.057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1349  
   data-arc span      11078 days (30.33 yr)  
   first obs. used      1990-11-15  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52753  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:11:47  

Additional Information
 Earth MOID = .986303 au 
 Jupiter MOID = 2.58101 au 
 T_jup = 3.541 
[ 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 14.89   n/a E2021B10  
diameter diameter 2.425 km 0.554 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.300   0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20030 (1992 EN30)          Discovered 1992-Mar-01 by UESAC at La Silla
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 EN30 = 1990 VC5 = 2000 LV17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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