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30954 (1994 PM28)
Classification: Main-belt Asteroid          SPK-ID: 2030954
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08236972429205544 3.032e-08  
a 2.232954281921083 7.6799e-09 au
q 2.049026453362479 7.0279e-08 au
i 3.890330380140883 4.6885e-06 deg
node 20.54237576217481 4.8672e-05 deg
peri 240.2798869272348 5.8066e-05 deg
M 79.79490705087855 3.0463e-05 deg
tp 2459126.358786615941
(2020-Oct-03.85878662)
0.00010319 TDB
period 1218.75994862996
3.34
6.2876e-06
1.721e-08
d
yr
n .2953822041860545 1.5239e-09 deg/d
Q 2.416882110479687 8.3125e-09 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      10471 days (28.67 yr)  
   first obs. used      1991-10-11  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:50:28  

Additional Information
 Earth MOID = 1.03719 au 
 Jupiter MOID = 2.61481 au 
 T_jup = 3.633 
[ 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 16.26   n/a E2021B10  
diameter diameter 1.692 km 0.355 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.269   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30954 (1994 PM28)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PM28 = 1991 TB11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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