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52472 (1995 SR9)
Classification: Main-belt Asteroid          SPK-ID: 2052472
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1293007825806237 3.7693e-08  
a 3.14669938008283 1.9668e-08 au
q 2.739828687692157 1.1515e-07 au
i 12.98459019947344 6.3608e-06 deg
node 355.5682029927984 1.833e-05 deg
peri 91.38895959137567 3.2254e-05 deg
M 141.9697077781124 2.5081e-05 deg
tp 2458592.465847588628
(2019-Apr-18.96584759)
0.00014095 TDB
period 2038.831377468814
5.58
1.9115e-05
5.233e-08
d
yr
n .176571738093876 1.6555e-09 deg/d
Q 3.553570072473503 2.2211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      9420 days (25.79 yr)  
   first obs. used      1995-08-25  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52075  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:53:44  

Additional Information
 Earth MOID = 1.795 au 
 Jupiter MOID = 1.75217 au 
 T_jup = 3.156 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457199.5 (2015-Jun-26.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1299608797709002 3.7618e-08  
q 2.737862886570257 1.1501e-07 au
tp 2456556.310014447997
(2013-Sep-20.81001445)
0.00013934 TDB
node 355.5864733916258 1.8332e-05 deg
peri 92.08750090829264 3.2134e-05 deg
i 12.98450730336609 6.3604e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      9420 days (25.79 yr)  
   first obs. used      1995-08-25  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52075  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:53:44  

Additional Information
 Jupiter MOID = 1.75217 au 
 T_jup = 3.156 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.415138368066569E-15 -4.282400927651298E-15 -4.142526452855697E-13 -2.233547902999588E-15 -9.581623025415582E-14 -2.782632581590201E-15
q -4.282400927651298E-15 1.322824498845247E-14 1.215244618006158E-12 7.91611098448753E-15 2.96298219767889E-13 8.604660962586313E-15
tp -4.142526452855697E-13 1.215244618006158E-12 1.941637038815607E-8 -1.535754224398961E-11 3.690043778494142E-9 -1.128212696366925E-11
node -2.233547902999588E-15 7.91611098448753E-15 -1.535754224398961E-11 3.360765321826807E-10 -3.296692625675135E-10 6.287362672807189E-12
peri -9.581623025415582E-14 2.96298219767889E-13 3.690043778494142E-9 -3.296692625675135E-10 1.032596418943411E-9 -8.19762357910506E-12
i -2.782632581590201E-15 8.604660962586313E-15 -1.128212696366925E-11 6.287362672807189E-12 -8.19762357910506E-12 4.045480454143125E-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 14.30   n/a E2021B10  
diameter diameter 8.669 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52472 (1995 SR9)          Discovered 1995-Sep-17 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 SR9 = 1998 BD26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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