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JPL Small-Body Database Browser
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58825 (1998 HE11)
Classification: Main-belt Asteroid          SPK-ID: 2058825
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .186124400830159 5.209e-08  
a 3.168987335758498 2.2293e-08 au
q 2.579161466652086 1.633e-07 au
i 18.67683491316073 6.0728e-06 deg
node 44.10285637137587 1.2362e-05 deg
peri 312.016753439249 1.7624e-05 deg
M 190.3247148248708 1.2724e-05 deg
tp 2459971.670024573155
(2023-Jan-27.17002457)
7.5836e-05 TDB
period 2060.531140321802
5.64
2.1743e-05
5.953e-08
d
yr
n .1747122346055771 1.8436e-09 deg/d
Q 3.758813204864911 2.6442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1045  
   data-arc span      7963 days (21.80 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:37:33  

Additional Information
 Earth MOID = 1.61629 au 
 Jupiter MOID = 1.83755 au 
 T_jup = 3.095 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457063.5 (2015-Feb-10.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849611269240727 5.2141e-08  
q 2.583268044426028 1.6337e-07 au
tp 2457912.029909093881
(2017-Jun-07.52990909)
7.1349e-05 TDB
node 44.12877009269734 1.2359e-05 deg
peri 312.3306638101637 1.7663e-05 deg
i 18.67682129169319 6.0726e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1045  
   data-arc span      7963 days (21.80 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:37:33  

Additional Information
 Jupiter MOID = 1.83755 au 
 T_jup = 3.095 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.718691397728895E-15 -8.466761726450192E-15 1.715962409117243E-12 -7.491156025224654E-15 2.343104912342726E-13 -2.732390698536476E-15
q -8.466761726450192E-15 2.668834045600849E-14 -5.349756503794247E-12 2.040495689967591E-14 -7.54485598826578E-13 1.206468203765457E-14
tp 1.715962409117243E-12 -5.349756503794247E-12 5.090634716339536E-9 -5.900988575165822E-12 9.032244197413567E-10 -8.804755013634836E-12
node -7.491156025224654E-15 2.040495689967591E-14 -5.900988575165822E-12 1.527341121970582E-10 -1.450706407651174E-10 -1.393818538280951E-11
peri 2.343104912342726E-13 -7.54485598826578E-13 9.032244197413567E-10 -1.450706407651174E-10 3.119958771755076E-10 1.164112995809608E-11
i -2.732390698536476E-15 1.206468203765457E-14 -8.804755013634836E-12 -1.393818538280951E-11 1.164112995809608E-11 3.687619528437061E-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 13.8   n/a MPO337722  
diameter diameter 8.711 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58825 (1998 HE11)          Discovered 1998-Apr-17 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HE11 = 2000 SE217 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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