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JPL Small-Body Database Browser
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20699 (1999 VJ144)
Classification: Main-belt Asteroid          SPK-ID: 2020699
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1690552842794613 3.1984e-08  
a 2.570475802457887 9.6891e-09 au
q 2.135923284939893 8.0035e-08 au
i 7.087183355603186 3.4921e-06 deg
node 251.8110157922834 4.3286e-05 deg
peri 12.46045434814884 4.6619e-05 deg
M 26.16220903618015 1.7307e-05 deg
tp 2458491.106726768850
(2019-Jan-07.60672677)
7.2269e-05 TDB
period 1505.284905749071
4.12
8.511e-06
2.33e-08
d
yr
n .2391573838447906 1.3522e-09 deg/d
Q 3.005028319975882 1.1327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1768  
   data-arc span      10727 days (29.37 yr)  
   first obs. used      1990-07-25  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50607  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:46:00  

Additional Information
 Earth MOID = 1.12053 au 
 Jupiter MOID = 2.07347 au 
 T_jup = 3.399 
[ 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 13.6   n/a MPO502322  
diameter diameter 5.318 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.80 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Warner, B.D (2012) Minor Planet Bull. 39, 69-80.]
geometric albedo albedo 0.158   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20699 (1999 VJ144)          Discovered 1999-Nov-11 by CSS at Catalina
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VJ144 = 1990 OC3 = 1990 RS10 = 1998 ML25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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