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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2762448283957146 4.635e-08  
a 2.587060098561109 1.2108e-08 au
q 1.872398125584695 1.2476e-07 au
i 10.27330548332536 3.9161e-06 deg
node 293.3739623149149 2.7087e-05 deg
peri 101.4111414133637 2.8494e-05 deg
M 82.43662779877184 7.7847e-06 deg
tp 2458852.462596005671
(2020-Jan-03.96259601)
3.2199e-05 TDB
period 1519.876161647472
4.16
1.067e-05
2.921e-08
d
yr
n .2368614029775805 1.6629e-09 deg/d
Q 3.301722071537523 1.5453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1532  
   data-arc span      12551 days (34.36 yr)  
   first obs. used      1986-09-09  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47015  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:44:24  

Additional Information
 Earth MOID = .910439 au 
 Jupiter MOID = 2.27149 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 14.10   n/a E2021B10  
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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