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243261 (2007 YM28)
Classification: Main-belt Asteroid          SPK-ID: 2243261
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07573437377488285 6.027e-08  
a 3.129681418905437 3.1367e-08 au
q 2.892656956529747 1.9609e-07 au
i 12.92600400968921 5.3036e-06 deg
node 173.4414055684778 2.7355e-05 deg
peri 77.10164296462642 4.8115e-05 deg
M 347.7671204501647 3.6522e-05 deg
tp 2459069.218682238721
(2020-Aug-07.71868224)		 0.00020474 TDB
period 2022.314166109209
5.54		 3.0403e-05
8.324e-08		 d
yr
n .178013884307904 2.6762e-09 deg/d
Q 3.366705881281127 3.3742e-08 au
   Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      8500 days (23.27 yr)  
   first obs. used      1997-04-09  
   last obs. used      2020-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56426  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:57:40  

Additional Information
 Earth MOID = 1.91559 au 
 Jupiter MOID = 1.71558 au 
 T_jup = 3.170 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457829.5 (2017-Mar-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07495901514020338 6.0376e-08  
q 2.896830699335843 1.9636e-07 au
tp 2457042.850413236345
(2015-Jan-20.35041324)		 0.00022109 TDB
node 173.4627652250221 2.7351e-05 deg
peri 76.53479684997046 4.8383e-05 deg
i 12.92462759874857 5.3039e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      8500 days (23.27 yr)  
   first obs. used      1997-04-09  
   last obs. used      2020-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56426  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:57:40  

Additional Information
 Jupiter MOID = 1.71558 au 
 T_jup = 3.170 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.645259822496624E-15 -1.172815550488365E-14 -2.330439711048992E-12 2.849230928060296E-14 -4.253858660988993E-13 -1.257553180937764E-14
q -1.172815550488365E-14 3.85555933677299E-14 3.931364464349482E-12 -9.35112608181837E-14 7.685211076068853E-13 4.315630051329356E-14
tp -2.330439711048992E-12 3.931364464349482E-12 4.88788629399856E-8 8.294966575611986E-12 8.880582805120569E-9 1.504481325530385E-11
node 2.849230928060296E-14 -9.35112608181837E-14 8.294966575611986E-12 7.480947328492958E-10 -7.272876691612495E-10 6.37102398894965E-11
peri -4.253858660988993E-13 7.685211076068853E-13 8.880582805120569E-9 -7.272876691612495E-10 2.340896982401207E-9 -5.914872012895781E-11
i -1.257553180937764E-14 4.315630051329356E-14 1.504481325530385E-11 6.37102398894965E-11 -5.914872012895781E-11 2.813182945913727E-11

[ 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 15.3   n/a MPO470594  
diameter diameter 5.299 km 0.415 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243261 (2007 YM28)          Discovered 2007-Dec-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2007 YM28 = 2005 SN270 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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