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3231 Mila (1972 RU2)
Classification: Main-belt Asteroid          SPK-ID: 2003231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271463936841442 1.7506e-08  
a 2.445233850792266 7.9895e-09 au
q 2.134331184949636 4.2835e-08 au
i 6.37511983428583 2.9648e-07 deg
node 324.3180875476016 2.3314e-06 deg
peri 54.71749347863609 1.0046e-05 deg
M 193.403321275557 8.6971e-06 deg
tp 2459846.812959415387
(2022-Sep-24.31295942)
3.5164e-05 TDB
period 1396.622472734817
3.82
6.8449e-06
1.874e-08
d
yr
n .2577647195487701 1.2633e-09 deg/d
Q 2.756136516634895 9.0053e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2626  
   data-arc span      26119 days (71.51 yr)  
   first obs. used      1949-08-21  
   last obs. used      2021-02-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43226  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:51:41  

Additional Information
 Earth MOID = 1.14158 au 
 Jupiter MOID = 2.74134 au 
 T_jup = 3.479 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.47   n/a E2021B10  
diameter diameter 13.424 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3231 Mila (1972 RU2)          Discovered 1972-Sep-04 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1972 RU2 = 1949 QJ1 = 1949 QN1 = 1955 EL = 1972 QJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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