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80221 (1999 VM144)
Classification: Main-belt Asteroid          SPK-ID: 2080221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0789632739749411 5.6743e-08  
a 2.245114045011237 1.1902e-08 au
q 2.067832489570026 1.3262e-07 au
i 4.139872017122247 6.1112e-06 deg
node 354.4542756699378 6.7714e-05 deg
peri 137.8643814218079 7.8568e-05 deg
M 322.965213224735 3.9986e-05 deg
tp 2459126.904747311288
(2020-Oct-04.40474731)
0.00013676 TDB
period 1228.728797824656
3.36
9.7708e-06
2.675e-08
d
yr
n .2929857269051924 2.3298e-09 deg/d
Q 2.422395600452447 1.2842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      624  
   data-arc span      7682 days (21.03 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54744  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:20:23  

Additional Information
 Earth MOID = 1.08398 au 
 Jupiter MOID = 2.59031 au 
 T_jup = 3.624 
[ 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 16.1   n/a MPO502638  
diameter diameter 1.597 km 0.390 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.302   0.218 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80221 (1999 VM144)          Discovered 1999-Nov-11 by CSS at Catalina
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1999 VM144 = 2002 RT14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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