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249978 (2001 VB50)
Classification: Main-belt Asteroid          SPK-ID: 2249978
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2187588943668678 4.2693e-08  
a 2.78074557738725 1.779e-08 au
q 2.172432749362458 1.2438e-07 au
i 6.713274497143751 5.2236e-06 deg
node 280.9003643341827 4.4044e-05 deg
peri 131.9559376125105 4.6272e-05 deg
M 352.660778103737 1.3721e-05 deg
tp 2459035.029304230515
(2020-Jul-04.52930423)
6.4711e-05 TDB
period 1693.714905842389
4.64
1.6253e-05
4.45e-08
d
yr
n .2125505294652583 2.0397e-09 deg/d
Q 3.389058405412043 2.1681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      6592 days (18.05 yr)  
   first obs. used      2001-10-13  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53887  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:49:44  

Additional Information
 Earth MOID = 1.19068 au 
 Jupiter MOID = 2.00842 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457212.5 (2015-Jul-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2170789984637506 4.235e-08  
q 2.178709995524327 1.2324e-07 au
tp 2457332.784351820616
(2015-Nov-06.28435182)
5.9647e-05 TDB
node 281.3257084017977 4.4284e-05 deg
peri 130.4190926082615 4.6523e-05 deg
i 6.687450467941067 5.2139e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      6592 days (18.05 yr)  
   first obs. used      2001-10-13  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53887  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:49:44  

Additional Information
 Jupiter MOID = 2.00842 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.793543893474546E-15 -5.188732194618511E-15 -3.255214986497497E-13 -1.625490964759432E-15 -4.246054905915256E-14 2.905880380064859E-16
q -5.188732194618511E-15 1.518700931468129E-14 1.162154187739116E-12 5.201330268325515E-15 1.679175242249971E-13 -1.019504218746911E-16
tp -3.255214986497497E-13 1.162154187739116E-12 3.557728404636725E-9 -1.539533324823968E-11 8.74572564728978E-10 4.035388513054541E-14
node -1.625490964759432E-15 5.201330268325515E-15 -1.539533324823968E-11 1.961089310354523E-9 -1.951629734672505E-9 4.828519889876349E-11
peri -4.246054905915256E-14 1.679175242249971E-13 8.74572564728978E-10 -1.951629734672505E-9 2.16440254325195E-9 -4.807514553237312E-11
i 2.905880380064859E-16 -1.019504218746911E-16 4.035388513054541E-14 4.828519889876349E-11 -4.807514553237312E-11 2.71852172232448E-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 16.0   n/a MPO494363  
diameter diameter 4.039 km 0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249978 (2001 VB50)          Discovered 2001-Nov-10 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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