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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2713388928343515 4.0755e-08  
a 2.195759444988598 5.1641e-09 au
q 1.599964508254822 8.9989e-08 au
i 9.93929830453993 4.8816e-06 deg
node 308.9234249750532 2.0897e-05 deg
peri 23.10552714818916 2.2011e-05 deg
M 277.1901106483434 9.706e-06 deg
tp 2458873.872780314790
(2020-Jan-25.37278031)
3.2758e-05 TDB
period 1188.43536302051
3.25
4.1926e-06
1.148e-08
d
yr
n .3029192930484914 1.0686e-09 deg/d
Q 2.791554381722374 6.5654e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2129  
   data-arc span      29609 days (81.07 yr)  
   first obs. used      1938-07-23  
   last obs. used      2019-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43218  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:17:54  

Additional Information
 Earth MOID = .592859 au 
 Jupiter MOID = 2.58242 au 
 T_jup = 3.601 
[ 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-January); 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.]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1910-Apr-15 04:28 < 00:01 Amphi 0.024079676765689 0.0240773192982282 0.0240820343560823 4.86332030229587 4.86332025320627 2418776.686439940 0.380907218752454 147.516781177606 32.1729730087467 -38.2700973482528 71921.5411469244 T 38 CATAB v2.0f-lin.ifort 2019-Sep-23 19:18:04 2019-Sep-23 19:18
1991-Nov-21 18:42 < 00:01 David 0.0489355478462339 0.0489351825983318 0.0489359130945822 8.75890560664556 8.75890557139965 2448582.279321044 0.198778050051541 49.0471234720503 17.9702551576047 86.2987425171556 406558.097629555 T 38 CATAB v2.0f-lin.ifort 2019-Sep-23 19:18:04 2019-Sep-23 19:18
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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