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19723 (1999 VG87)
Classification: Main-belt Asteroid          SPK-ID: 2019723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2763945278348421 4.0987e-08  
a 2.586778593346331 1.0408e-08 au
q 1.871807145425095 1.0911e-07 au
i 10.272908493834 3.731e-06 deg
node 293.3706789649796 2.5978e-05 deg
peri 101.3975696087161 2.7127e-05 deg
M 128.8710425835519 7.8728e-06 deg
tp 2458852.510952775005
(2020-Jan-04.01095277)
3.2016e-05 TDB
period 1519.628095458531
4.16
9.1713e-06
2.511e-08
d
yr
n .236900068560113 1.4298e-09 deg/d
Q 3.301750041267566 1.3285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1740  
   data-arc span      12666 days (34.68 yr)  
   first obs. used      1986-09-09  
   last obs. used      2021-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:15:51  

Additional Information
 Earth MOID = .910252 au 
 Jupiter MOID = 2.27261 au 
 T_jup = 3.345 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.12   n/a MPCxxxxx  
diameter diameter 4.025 km 0.892 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.292   0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

19723 (1999 VG87)          Discovered 1999-Nov-04 by CSS at Catalina
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VG87 = 1986 RD4 = 1986 WC6 = 1998 OU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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