Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
1432 Ethiopia (1937 PG)
Classification: Main-belt Asteroid          SPK-ID: 2001432
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2258236278016549 3.705e-08  
a 2.381746556661702 6.1922e-09 au
q 1.843891908732257 8.7448e-08 au
i 8.271520127969149 3.6464e-06 deg
node 123.2254477744671 2.3151e-05 deg
peri 218.5780663237687 2.3891e-05 deg
M 174.4299964241101 6.7049e-06 deg
tp 2458349.980353955159
(2018-Aug-19.48035396)
2.466e-05 TDB
period 1342.584861417638
3.68
5.2358e-06
1.433e-08
d
yr
n .2681394750867929 1.0457e-09 deg/d
Q 2.919601204591147 7.5905e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3429  
   data-arc span      30274 days (82.89 yr)  
   first obs. used      1937-08-01  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39861  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:19:03  

Additional Information
 Earth MOID = .84299 au 
 Jupiter MOID = 2.48932 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456991.5 (2014-Nov-30.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2269577171332216 3.7243e-08  
q 1.8408843151904 8.8027e-08 au
tp 2457005.722539725184
(2014-Dec-14.22253973)
2.4413e-05 TDB
node 123.3426015453628 2.3122e-05 deg
peri 218.160721398761 2.3845e-05 deg
i 8.277816596612944 3.6506e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3429  
   data-arc span      30274 days (82.89 yr)  
   first obs. used      1937-08-01  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39861  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:19:03  

Additional Information
 Jupiter MOID = 2.48932 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.387063065203031E-15 -3.273835351079572E-15 4.363442691263709E-14 4.662548651792355E-15 -1.076294996881187E-14 -7.793903873764761E-16
q -3.273835351079572E-15 7.748807223414664E-15 -1.167915852015559E-13 -1.081247683710779E-14 2.090998702818698E-14 2.001706130612741E-15
tp 4.363442691263709E-14 -1.167915852015559E-13 5.959858651040244E-10 6.837897057765568E-13 1.534533285013304E-10 3.158615792333963E-13
node 4.662548651792355E-15 -1.081247683710779E-14 6.837897057765568E-13 5.346496170224916E-10 -5.285164041932362E-10 2.333030024164283E-11
peri -1.076294996881187E-14 2.090998702818698E-14 1.534533285013304E-10 -5.285164041932362E-10 5.685893949970497E-10 -2.304498522533406E-11
i -7.793903873764761E-16 2.001706130612741E-15 3.158615792333963E-13 2.333030024164283E-11 -2.304498522533406E-11 1.332711263222532E-11

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 12.0   n/a MPO416720  
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

[ show close-approach data ]
Alternate Designations
 1937 PG = 1948 OE = 1951 KF = 1973 FQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-22 13:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin