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1432 Ethiopia (1937 PG)
Classification: Main-belt Asteroid          SPK-ID: 2001432
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2261411365702503 1.5503e-08  
a 2.38108578697609 5.6513e-09 au
q 1.842624340838048 3.6672e-08 au
i 8.271631412571304 1.3402e-06 deg
node 123.2257842522113 4.8338e-06 deg
peri 218.6198975965008 6.6013e-06 deg
M 280.6004259085752 4.2478e-06 deg
tp 2459692.489743900469
(2022-Apr-22.98974390)
1.6447e-05 TDB
period 1342.026188723311
3.67
4.7777e-06
1.308e-08
d
yr
n .2682510989912002 9.55e-10 deg/d
Q 2.919547233114132 6.9292e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3871  
   data-arc span      30647 days (83.91 yr)  
   first obs. used      1937-08-01  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38284  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:21:56  

Additional Information
 Earth MOID = .840974 au 
 Jupiter MOID = 2.48985 au 
 T_jup = 3.489 
[ 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 12.12   n/a MPCxxxxx  
diameter diameter 7.074 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.8458 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Oey, J. (2008) Minor Planet Bull. 35, 132-135.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.769   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1432 Ethiopia (1937 PG)          Discovered 1937-Aug-01 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1937 PG = 1948 OE = 1951 KF = 1973 FQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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