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101438 (1998 VE39)
Classification: Main-belt Asteroid          SPK-ID: 2101438
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1953428582960567 3.1611e-08  
a 2.390917244381316 9.4552e-09 au
q 1.923868635914538 7.906e-08 au
i 4.654463128175327 3.723e-06 deg
node 300.5689960350532 4.725e-05 deg
peri 144.9236537587125 4.8911e-05 deg
M 320.4398070384759 1.1626e-05 deg
tp 2459348.888807227178
(2021-May-14.38880723)
4.3818e-05 TDB
period 1350.346563115605
3.70
8.0102e-06
2.193e-08
d
yr
n .2665982273242399 1.5814e-09 deg/d
Q 2.857965852848094 1.1302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      8097 days (22.17 yr)  
   first obs. used      1998-11-11  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5057  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:28:36  

Additional Information
 Earth MOID = .942005 au 
 Jupiter MOID = 2.36296 au 
 T_jup = 3.502 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457772.5 (2017-Jan-19.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1951747275570376 3.1318e-08  
q 1.924989299326804 7.8294e-08 au
tp 2457994.630298164649
(2017-Aug-29.13029816)
4.2571e-05 TDB
node 300.6921969409233 4.7393e-05 deg
peri 144.1063783193835 4.9045e-05 deg
i 4.646026853283475 3.7168e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      8097 days (22.17 yr)  
   first obs. used      1998-11-11  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5057  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:28:36  

Additional Information
 Jupiter MOID = 2.36296 au 
 T_jup = 3.502 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.808447996133723E-16 -2.442353078792916E-15 1.356491811571683E-13 -6.802477459144103E-16 8.779047860115937E-14 -2.030220332828958E-16
q -2.442353078792916E-15 6.129952988059513E-15 -2.911120206126228E-13 2.206454253267287E-15 -2.084417468770025E-13 8.242231876377983E-16
tp 1.356491811571683E-13 -2.911120206126228E-13 1.812327402169312E-9 -1.112585255146824E-11 5.467029956798605E-10 2.869550144745156E-12
node -6.802477459144103E-16 2.206454253267287E-15 -1.112585255146824E-11 2.246111338590013E-9 -2.241974566204465E-9 5.917370684306799E-11
peri 8.779047860115937E-14 -2.084417468770025E-13 5.467029956798605E-10 -2.241974566204465E-9 2.405386262454536E-9 -5.820536013977994E-11
i -2.030220332828958E-16 8.242231876377983E-16 2.869550144745156E-12 5.917370684306799E-11 -5.820536013977994E-11 1.381477058132897E-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 15.71   n/a E2021B55  
diameter diameter 4.233 km 0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101438 (1998 VE39)          Discovered 1998-Nov-11 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1998 VE39 = 2000 HB104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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