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JPL Small-Body Database Browser
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533671 (2014 LJ21)
Classification: Apollo [NEO, PHA]          SPK-ID: 2533671
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .895224773853188 6.4287e-08  
a 2.889847784259583 2.8898e-08 au
q .3027844551256614 1.861e-07 au
i 24.2517606267172 1.1544e-05 deg
node 126.6590434029691 4.76e-05 deg
peri 302.8138866806516 4.321e-05 deg
M 90.08415541776941 4.7787e-06 deg
tp 2458551.489197883847
(2019-Mar-08.98919788)
2.244e-05 TDB
period 1794.365368828561
4.91
2.6915e-05
7.369e-08
d
yr
n .2006280361033848 3.0094e-09 deg/d
Q 5.476911113393504 5.4769e-08 au
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      5157 days (14.12 yr)  
   first obs. used      2005-05-12  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47516  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-21 05:53:12  

Additional Information
 Earth MOID = .0265577 au 
 Jupiter MOID = 1.56516 au 
 T_jup = 2.406 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457593.5 (2016-Jul-24.0) TDB
Reference: JPL 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8952378912090323 6.4189e-08  
q .302774407821032 1.8579e-07 au
tp 2456757.323960847959
(2014-Apr-09.82396085)
3.4515e-05 TDB
node 126.7803091639423 4.7725e-05 deg
peri 302.6743157370706 4.3329e-05 deg
i 24.20801959310372 1.1544e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      5157 days (14.12 yr)  
   first obs. used      2005-05-12  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47516  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-21 05:53:12  

Additional Information
 Jupiter MOID = 1.56516 au 
 T_jup = 2.406 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.120168059291483E-15 -1.192426155498918E-14 1.264881706128632E-12 9.425388199343468E-13 -1.020185832666105E-12 -2.989111696405429E-13
q -1.192426155498918E-14 3.451955378490602E-14 -3.735995529274955E-12 -2.738843326372627E-12 2.954899236576406E-12 8.677444832764899E-13
tp 1.264881706128632E-12 -3.735995529274955E-12 1.191297616828239E-9 4.773246763996571E-10 -2.955611324592673E-10 -1.558004400607026E-10
node 9.425388199343468E-13 -2.738843326372627E-12 4.773246763996571E-10 2.277663057786197E-9 -1.966899490635612E-9 -4.251476797287987E-11
peri -1.020185832666105E-12 2.954899236576406E-12 -2.955611324592673E-10 -1.966899490635612E-9 1.877370144314144E-9 -3.76326451311416E-12
i -2.989111696405429E-13 8.677444832764899E-13 -1.558004400607026E-10 -4.251476797287987E-11 -3.76326451311416E-12 1.332725999131056E-10

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 16.1   n/a MPO477486  
rotation period rot_per 16.41 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46-4, submitted. (NEA Gaggle) http://www.planetarysciences.org/lightcurves.html]

533671 (2014 LJ21)          Discovered 2013-Jun-15 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-05-29

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