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7096 Napier (1992 VM)
Classification: Mars-crossing Asteroid          SPK-ID: 2007096
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5021224172560231 2.08e-08  
a 2.778294443870528 9.2124e-09 au
q 1.38325052186528 5.6507e-08 au
i 11.14964501502375 5.2872e-06 deg
node 146.5027025332672 1.5551e-05 deg
peri 257.987530261357 1.7256e-05 deg
M 25.7506369058727 4.7171e-06 deg
tp 2459079.509490135702
(2020-Aug-18.00949014)
2.2298e-05 TDB
period 1691.475970491971
4.63
8.4131e-06
2.303e-08
d
yr
n .2128318736300422 1.0586e-09 deg/d
Q 4.173338365875776 1.3838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1323  
   data-arc span      13503 days (36.97 yr)  
   first obs. used      1984-04-01  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:13:36  

Additional Information
 Earth MOID = .448444 au 
 Jupiter MOID = 1.49145 au 
 T_jup = 3.113 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457330.5 (2015-Nov-04.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5042415172788406 2.2604e-08  
q 1.375685127563906 6.2888e-08 au
tp 2457377.857306827135
(2015-Dec-21.35730683)
2.1427e-05 TDB
node 148.7033938164923 1.5486e-05 deg
peri 254.9618006933519 1.7144e-05 deg
i 11.22571537599259 5.2932e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1323  
   data-arc span      13503 days (36.97 yr)  
   first obs. used      1984-04-01  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:13:36  

Additional Information
 Jupiter MOID = 1.49145 au 
 T_jup = 3.113 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.109226609542196E-16 -1.41920886743197E-15 -2.007444899896833E-13 1.795315695557148E-14 -8.693464391973463E-14 -1.546656273854208E-14
q -1.41920886743197E-15 3.954842048347376E-15 5.808415966837631E-13 -5.253483075665026E-14 2.513732261341758E-13 4.511691054703306E-14
tp -2.007444899896833E-13 5.808415966837631E-13 4.59096610737558E-10 -2.943536565752612E-11 1.693817032751982E-10 9.971267285183202E-12
node 1.795315695557148E-14 -5.253483075665026E-14 -2.943536565752612E-11 2.398156421821474E-10 -2.422380632135296E-10 -7.239734296474383E-12
peri -8.693464391973463E-14 2.513732261341758E-13 1.693817032751982E-10 -2.422380632135296E-10 2.939269386532893E-10 8.20876804600321E-12
i -1.546656273854208E-14 4.511691054703306E-14 9.971267285183202E-12 -7.239734296474383E-12 8.20876804600321E-12 2.801790177621956E-11

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 15.16   n/a E2021B10  
diameter diameter 5.59 km 0.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
geometric albedo albedo 0.0428   0.007 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3

7096 Napier (1992 VM)          Discovered 1992-Nov-03 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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