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JPL Small-Body Database Browser
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7889 (1994 LX)
Classification: Apollo [NEO]          SPK-ID: 2007889
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 311 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3462932993717291 5.9971e-08  
a 1.261413272900025 2.505e-09 au
q .8245943087561839 7.5172e-08 au
i 36.90898365332638 6.2423e-06 deg
node 111.2786554469458 5.2909e-06 deg
peri 349.1392268454754 8.303e-06 deg
M 25.92719149538891 1.3001e-05 deg
tp 2458563.231879065353
(2019-Mar-20.73187907)
1.8583e-05 TDB
period 517.4692190960607
1.42
1.5415e-06
4.22e-09
d
yr
n .6956935537709175 2.0724e-09 deg/d
Q 1.698232237043866 3.3725e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1843  
   # delay obs. used      2  
   # Doppler obs. used      2  
   data-arc span      15399 days (42.16 yr)  
   first obs. used      1977-08-10  
   last obs. used      2019-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-09 05:57:31  

Additional Information
 Earth MOID = .154267 au 
 Jupiter MOID = 3.46575 au 
 T_jup = 4.864 
[ 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 15.2   n/a MPO337322  
diameter diameter 1.680 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 2.741 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pravec, P.; Sarounova, L.; Wolf, M. (1996) Icarus 124, 471-482.]
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) http://www.asu.cas.cz/~ppravec/neo.htm]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
[Clark, M. (2016) Minor Planet Bull. 43, 2-5.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 66-79.]
geometric albedo albedo 0.452   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B V   n/a Binzel et al. (2004) Icarus 170, 259-294  

7889 (1994 LX)          Discovered 1994-Jun-15 by Spacewatch at Kitt Peak
Reference: DISCOVERY.DBLast Updated: 2013-09-05

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