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1320 Impala (1934 JG)
Classification: Main-belt Asteroid          SPK-ID: 2001320
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2291110555906631 2.4193e-08  
a 2.992214511435789 1.1056e-08 au
q 2.306665086167035 7.5573e-08 au
i 19.79658443654625 5.4345e-07 deg
node 71.88727194371697 2.1608e-06 deg
peri 205.9497564069117 4.5011e-06 deg
M 259.2012700436198 7.523e-06 deg
tp 2459729.846533579379
(2022-May-30.34653358)
4.1151e-05 TDB
period 1890.547154423888
5.18
1.0478e-05
2.869e-08
d
yr
n .1904210636363121 1.0554e-09 deg/d
Q 3.677763936704542 1.3589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2912  
   data-arc span      31720 days (86.84 yr)  
   first obs. used      1934-05-13  
   last obs. used      2021-03-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36841  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:17:21  

Additional Information
 Earth MOID = 1.30291 au 
 Jupiter MOID = 1.48658 au 
 T_jup = 3.128 
[ 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 10.93   n/a E2021B10  
diameter diameter 37.331 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.1713 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2006) Minor Planet Bull. 33, 85-88.]
[Benishek, V. (2016) Minor Planet Bull. 43, 339-342.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.078   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1320 Impala (1934 JG)          Discovered 1934-May-13 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1934 JG = 1939 JE = 1949 FV = 1951 WU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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