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21943 (1999 VG114)
Classification: Main-belt Asteroid          SPK-ID: 2021943
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026109178107574 4.6655e-08  
a 2.401147352271104 1.2856e-08 au
q 1.914648683428586 1.1548e-07 au
i 8.524691930396619 5.2566e-06 deg
node 300.8371338753592 2.4559e-05 deg
peri 345.2031902009481 2.824e-05 deg
M 325.1898434250761 1.9975e-05 deg
tp 2459331.910516255904
(2021-Apr-27.41051626)
7.6218e-05 TDB
period 1359.022495354252
3.72
1.0915e-05
2.988e-08
d
yr
n .2648962774572469 2.1275e-09 deg/d
Q 2.887646021113623 1.5461e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1457  
   data-arc span      9030 days (24.72 yr)  
   first obs. used      1995-09-20  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47416  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:56:08  

Additional Information
 Earth MOID = .897715 au 
 Jupiter MOID = 2.29777 au 
 T_jup = 3.483 
[ 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 14.26   n/a E2021B10  
diameter diameter 8.895 km 0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21943 (1999 VG114)          Discovered 1999-Nov-09 by CSS at Catalina
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VG114 = 1998 FY107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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