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7839 (1994 ND)
Classification: Amor [NEO]          SPK-ID: 2007839
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5185777700758288 9.1147e-08  
a 2.165318570332025 7.8255e-09 au
q 1.042432494625462 1.9782e-07 au
i 27.11833562228615 1.3966e-05 deg
node 102.5393264163521 1.5927e-05 deg
peri 228.2668544031872 2.3601e-05 deg
M 33.13189470833585 2.0218e-05 deg
tp 2458893.391262710266
(2020-Feb-13.89126271)
6.4809e-05 TDB
period 1163.807435818115
3.19
6.309e-06
1.727e-08
d
yr
n .309329523871733 1.6769e-09 deg/d
Q 3.288204646038588 1.1884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      9038 days (24.74 yr)  
   first obs. used      1994-07-03  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54381  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Apr-02 07:02:27  

Additional Information
 Earth MOID = .136207 au 
 Jupiter MOID = 2.3648 au 
 T_jup = 3.385 
[ 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 17.8   n/a MPO431589  
diameter diameter 0.784 km 0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
geometric albedo albedo 0.181   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

7839 (1994 ND)          Discovered 1994-Jul-03 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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