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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2291110556087968 2.4193e-08  
a 2.992214510439123 1.0962e-08 au
q 2.306665085344456 7.5562e-08 au
i 19.79658445975818 5.4207e-07 deg
node 71.88727201284289 2.1581e-06 deg
peri 205.9497562513066 4.4948e-06 deg
M 259.2012704018017 7.5059e-06 deg
tp 2459729.846531433903
(2022-May-30.34653143)
4.1039e-05 TDB
period 1890.547153479315
5.18
1.0389e-05
2.844e-08
d
yr
n .1904210637314521 1.0464e-09 deg/d
Q 3.677763935533789 1.3474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2953  
   data-arc span      31727 days (86.86 yr)  
   first obs. used      1934-05-13  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36687  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:23:02  

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

[ 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
1905-Aug-13 09:19 00:02 Jupiter 1.68046944275871 1.68046752281569 1.6804713627022 4.48292145936173 4.36903952443595 2417070.888297205 1.88444282471858 109.739422790197 40.0327130397209 30.8578419795035 4011620.19384547 T 41 CATAB v2.0g-lin.ifort 2021-May-03 19:24:03 2021-May-03 19:24
1942-Jan-09 11:45 < 00:01 Jupiter 1.46367116328558 1.46367089422648 1.46367143234625 4.50880689207682 4.3785779704759 2430368.989310784 0.932160486888615 85.8849599716725 5.56255434874156 -81.9142897399167 16058230.5197 T 41 CATAB v2.0g-lin.ifort 2021-May-03 19:24:03 2021-May-03 19:24
1978-Jun-28 09:12 < 00:01 Jupiter 1.842910634069 1.84290997122012 1.84291129694941 4.14888147088268 4.03658208192551 2443687.882996053 0.573984545825168 405.135123761492 10.2111030967549 -85.3727533818208 22360678.6309134 T 41 CATAB v2.0g-lin.ifort 2021-May-03 19:24:03 2021-May-03 19:24
2024-Apr-01 07:11 < 00:01 Jupiter 1.68046522319686 1.6804650148219 1.68046543157182 4.50207098088123 4.38868569630331 2460401.799609908 0.204963224804786 51.4920002517949 10.3730609197778 89.8197217406413 20025656.4943789 T 41 CATAB v2.0g-lin.ifort 2021-May-03 19:24:03 2021-May-03 19:24
2060-Aug-29 09:25 < 00:01 Jupiter 1.47249227478294 1.47249194674084 1.47249260282747 4.48374413255738 4.35356180465391 2473700.892410237 0.722536686215911 100.610513339501 3.77089237579921 -80.9819996182802 21046188.3203265 T 41 CATAB v2.0g-lin.ifort 2021-May-03 19:24:03 2021-May-03 19:24
2097-Feb-18 19:35 00:02 Jupiter 1.85430536955175 1.85430340754703 1.85430733223465 4.06075083150882 3.94665977723693 2487023.315803664 1.77385147479661 1801.57242673713 7.43941329235568 -86.7510376962269 20583423.4445441 T 41 CATAB v2.0g-lin.ifort 2021-May-03 19:24:03 2021-May-03 19:24
2142-Nov-20 15:17 00:02 Jupiter 1.68046883064697 1.68046670091832 1.68047096037678 4.51807185782176 4.40509869361918 2503733.136834743 2.24891585923091 130.738728163859 41.3670028532341 37.6658539914451 3847899.08302294 T 41 CATAB v2.0g-lin.ifort 2021-May-03 19:24:03 2021-May-03 19:24
2179-Apr-21 02:44 00:02 Jupiter 1.48450252449691 1.4845018566972 1.48450319230718 4.44985396151748 4.31972764573355 2517033.613872434 2.40050335499409 203.841746142329 2.81235365635084 -80.4592506485246 18455353.8597962 T 41 CATAB v2.0g-lin.ifort 2021-May-03 19:24:03 2021-May-03 19:24

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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