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56022 (1998 VL23)
Classification: Main-belt Asteroid          SPK-ID: 2056022
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21462266198134 4.2215e-08  
a 2.329311847033091 7.9106e-09 au
q 1.829388737838177 1.0091e-07 au
i 3.410987821940515 4.7659e-06 deg
node 223.819222621509 8.1579e-05 deg
peri 186.0432052250775 8.275e-05 deg
M 19.64541658924384 1.5454e-05 deg
tp 2458929.640412134326
(2020-Mar-21.14041213)
5.5527e-05 TDB
period 1298.493799597489
3.56
6.6147e-06
1.811e-08
d
yr
n .277244296516159 1.4123e-09 deg/d
Q 2.829234956228005 9.6084e-09 au
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      7776 days (21.29 yr)  
   first obs. used      1998-10-10  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5366  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:40:12  

Additional Information
 Earth MOID = .839841 au 
 Jupiter MOID = 2.55023 au 
 T_jup = 3.539 
[ 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 15.8   n/a MPO432115  
diameter diameter 1.977 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.337 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.216   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56022 (1998 VL23)          Discovered 1998-Nov-10 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

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