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249573 (1994 RA25)
Classification: Main-belt Asteroid          SPK-ID: 2249573
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1477035705809348 6.8343e-08  
a 3.059139531854806 4.4505e-08 au
q 2.607293700094562 2.2045e-07 au
i 8.231526653800506 5.7762e-06 deg
node 277.9785156573864 5.3384e-05 deg
peri 48.4869224165415 5.6614e-05 deg
M 318.8917859887638 2.3e-05 deg
tp 2459223.663654264985
(2021-Jan-09.16365426)		 0.00012701 TDB
period 1954.327558804563
5.35		 4.2648e-05
1.168e-07		 d
yr
n .1842065821454247 4.0198e-09 deg/d
Q 3.51098536361505 5.1078e-08 au
   Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      8992 days (24.62 yr)  
   first obs. used      1994-09-12  
   last obs. used      2019-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:22:27  

Additional Information
 Earth MOID = 1.60406 au 
 Jupiter MOID = 1.83326 au 
 T_jup = 3.202 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456770.5 (2014-Apr-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471343340580961 6.8459e-08  
q 2.606437774023963 2.2018e-07 au
tp 2457277.104464348140
(2015-Sep-11.60446435)		 0.0001138 TDB
node 277.9972054657978 5.3423e-05 deg
peri 49.48202711222278 5.6645e-05 deg
i 8.229995618319238 5.7738e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      8992 days (24.62 yr)  
   first obs. used      1994-09-12  
   last obs. used      2019-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:22:27  

Additional Information
 Jupiter MOID = 1.83326 au 
 T_jup = 3.202 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.686675412502282E-15 -1.485172213626229E-14 1.505289959124786E-12 1.441668576328114E-14 2.987798863766953E-13 1.762585628381557E-15
q -1.485172213626229E-14 4.84813827020032E-14 -4.030404932713056E-12 -4.131032914567407E-14 -8.944606383470218E-13 -2.291627300292778E-15
tp 1.505289959124786E-12 -4.030404932713056E-12 1.2950655318327E-8 7.152190674648567E-12 2.245419858752999E-9 7.073406541993142E-12
node 1.441668576328114E-14 -4.131032914567407E-14 7.152190674648567E-12 2.854035501475301E-9 -2.822856850283005E-9 7.08793932051827E-11
peri 2.987798863766953E-13 -8.944606383470218E-13 2.245419858752999E-9 -2.822856850283005E-9 3.208710770739299E-9 -6.913017732985956E-11
i 1.762585628381557E-15 -2.291627300292778E-15 7.073406541993142E-12 7.08793932051827E-11 -6.913017732985956E-11 3.333624302935057E-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 15.6   n/a MPO437159  
diameter diameter 4.996 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249573 (1994 RA25)          Discovered 1994-Sep-12 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1994 RA25 = 2005 UE456 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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