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30873 (1992 EN17)
Classification: Main-belt Asteroid          SPK-ID: 2030873
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704669193376991 2.8849e-08  
a 2.3540380440944 7.3371e-09 au
q 1.952752430713885 6.6413e-08 au
i 2.938050244941582 3.2211e-06 deg
node 64.43426849736994 8.2216e-05 deg
peri 32.70123932985443 8.3291e-05 deg
M 33.86454347638465 1.4684e-05 deg
tp 2459076.402975816932
(2020-Aug-14.90297582)
5.3512e-05 TDB
period 1319.224301283095
3.61
6.1676e-06
1.689e-08
d
yr
n .2728876352943614 1.2758e-09 deg/d
Q 2.755323657474915 8.5878e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1184  
   data-arc span      10614 days (29.06 yr)  
   first obs. used      1992-03-02  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54722  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:32:02  

Additional Information
 Earth MOID = .970112 au 
 Jupiter MOID = 2.40927 au 
 T_jup = 3.534 
[ 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 15.41   n/a MPCxxxxx  
diameter diameter 2.098 km 0.449 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.483   0.218 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30873 (1992 EN17)          Discovered 1992-Mar-02 by UESAC at La Silla
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 EN17 = 1996 GF18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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