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180969 (2005 MM39)
Classification: Main-belt Asteroid          SPK-ID: 2180969
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06016954066440484 4.0157e-08  
a 2.728333973480336 1.7659e-08 au
q 2.564171371516934 1.0994e-07 au
i 5.855375397578753 4.3716e-06 deg
node 165.462872226271 4.563e-05 deg
peri 153.2228719258131 6.1627e-05 deg
M 143.0047969834621 4.0699e-05 deg
tp 2458546.627867816036
(2019-Mar-04.12786782)		 0.00018565 TDB
period 1646.056443920895
4.51		 1.5981e-05
4.375e-08		 d
yr
n .218704529440365 2.1234e-09 deg/d
Q 2.892496575443738 1.8722e-08 au
   Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      7085 days (19.40 yr)  
   first obs. used      2001-09-21  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:41  

Additional Information
 Earth MOID = 1.55096 au 
 Jupiter MOID = 2.29324 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 16.3   n/a MPO454244  
diameter diameter 2.941 km 0.765 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

180969 (2005 MM39)          Discovered 2005-Jun-29 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2005 MM39 = 2001 TS250 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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