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37987 (1998 HO145)
Classification: Main-belt Asteroid          SPK-ID: 2037987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0930602682237542 3.7114e-08  
a 2.557066662722606 1.0946e-08 au
q 2.31910535322362 9.7715e-08 au
i 4.056871910062642 3.7446e-06 deg
node 143.7284832918504 4.6849e-05 deg
peri 47.57431025360253 5.0481e-05 deg
M 215.4695428276897 2.0144e-05 deg
tp 2459800.109324424216
(2022-Aug-08.60932442)
8.5799e-05 TDB
period 1493.521580267117
4.09
9.5901e-06
2.626e-08
d
yr
n .2410410433678593 1.5478e-09 deg/d
Q 2.795027972221592 1.1965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1303  
   data-arc span      9298 days (25.46 yr)  
   first obs. used      1995-08-19  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:31:11  

Additional Information
 Earth MOID = 1.32094 au 
 Jupiter MOID = 2.16148 au 
 T_jup = 3.427 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457187.5 (2015-Jun-14.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09188043221792465 3.7218e-08  
q 2.323065600736186 9.7879e-08 au
tp 2456812.947561751487
(2014-Jun-04.44756175)
7.7024e-05 TDB
node 143.7915190703561 4.6883e-05 deg
peri 47.806566601119 5.0591e-05 deg
i 4.054891396752069 3.7433e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1303  
   data-arc span      9298 days (25.46 yr)  
   first obs. used      1995-08-19  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:31:11  

Additional Information
 Jupiter MOID = 2.16148 au 
 T_jup = 3.427 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.385167836230091E-15 -3.624919925388023E-15 -8.553676567645386E-13 1.687286799290866E-14 -2.164277100679713E-13 9.05808362406417E-16
q -3.624919925388023E-15 9.58027667791049E-15 2.498895443115772E-12 -4.489216025616201E-14 6.332645929457615E-13 -2.298349876405912E-15
tp -8.553676567645386E-13 2.498895443115772E-12 5.932765561430951E-9 -3.120627563954755E-11 1.476527173129797E-9 1.07161773856955E-13
node 1.687286799290866E-14 -4.489216025616201E-14 -3.120627563954755E-11 2.1980605632458E-9 -2.199630570098463E-9 4.497746215440325E-11
peri -2.164277100679713E-13 6.332645929457615E-13 1.476527173129797E-9 -2.199630570098463E-9 2.559480215458513E-9 -4.482885988393358E-11
i 9.05808362406417E-16 -2.298349876405912E-15 1.07161773856955E-13 4.497746215440325E-11 -4.482885988393358E-11 1.40124632262692E-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 15.15   n/a E2021B10  
diameter diameter 2.207 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.229   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37987 (1998 HO145)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HO145 = 1995 QX10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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