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JPL Small-Body Database Browser
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1468 Zomba (1938 PA)
Classification: Mars-crossing Asteroid          SPK-ID: 2001468
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2710617095633456 3.9956e-08  
a 2.195579230333218 5.1362e-09 au
q 1.600441770677321 8.8272e-08 au
i 9.941011637682406 4.7419e-06 deg
node 308.9094187619594 2.0854e-05 deg
peri 23.08579067835473 2.1965e-05 deg
M 38.37111025453088 9.9768e-06 deg
tp 2458873.844526648147
(2020-Jan-25.34452665)
3.2599e-05 TDB
period 1188.289056642117
3.25
4.1697e-06
1.142e-08
d
yr
n .302956589550099 1.0631e-09 deg/d
Q 2.790716689989114 6.5284e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2211  
   data-arc span      29639 days (81.15 yr)  
   first obs. used      1938-07-23  
   last obs. used      2019-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:55:40  

Additional Information
 Earth MOID = .594215 au 
 Jupiter MOID = 2.58623 au 
 T_jup = 3.602 
[ 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 12.7   n/a MPO267713  
rotation period rot_per 2.773 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Wisniewski, W.Z.; McMillan, R.S. (1987) Astron. J. 93, 1264-1267.]
[Alkema, M.S. (2014) Minor Planet Bull. 41, 40.]
[Benishek, V. (2014) Minor Planet Bull. 41, 126-127.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 167-172.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]

1468 Zomba (1938 PA)          Discovered 1938-Jul-23 by Jackson, C. at Johannesburg (UO)
Independent discovery Aug. 2 by L. Boyer, Algiers, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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