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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1686034527315549 1.4677e-08  
a 2.570891783901902 8.9059e-09 au
q 2.137430552536855 3.657e-08 au
i 7.086182677723149 2.8925e-07 deg
node 251.8137142082741 5.7036e-06 deg
peri 12.51826550986968 7.3904e-06 deg
M 169.6214427739904 8.3605e-06 deg
tp 2458491.081722368478
(2019-Jan-07.58172237)
3.342e-05 TDB
period 1505.650322097774
4.12
7.8236e-06
2.142e-08
d
yr
n .2390993411394644 1.2424e-09 deg/d
Q 3.004353015266949 1.0407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2121  
   data-arc span      11180 days (30.61 yr)  
   first obs. used      1990-07-25  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48921  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:27:28  

Additional Information
 Earth MOID = 1.12068 au 
 Jupiter MOID = 2.07379 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 13.68   n/a E2021B10  
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. 2020-October); 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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