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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07898869967289478 5.7369e-08  
a 2.24463440997357 1.2044e-08 au
q 2.067333656688723 1.3377e-07 au
i 4.140267708245212 6.36e-06 deg
node 354.4601176471256 6.8701e-05 deg
peri 138.0426476652957 7.9498e-05 deg
M 205.5651549351959 3.9982e-05 deg
tp 2459127.438155986132
(2020-Oct-04.93815599)
0.00013758 TDB
period 1228.335069558988
3.36
9.8863e-06
2.707e-08
d
yr
n .2930796400116229 2.3589e-09 deg/d
Q 2.421935163258418 1.2995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      7341 days (20.10 yr)  
   first obs. used      1999-10-12  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55154  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:46:13  

Additional Information
 Earth MOID = 1.08386 au 
 Jupiter MOID = 2.59198 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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