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37960 (1998 HP64)
Classification: Main-belt Asteroid          SPK-ID: 2037960
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1915351238100211 4.3304e-08  
a 2.611715667429932 1.1494e-08 au
q 2.111480383712169 1.1077e-07 au
i 3.444207879162734 6.2316e-06 deg
node 202.9620903108369 5.4869e-05 deg
peri 39.17480785326877 5.7192e-05 deg
M 109.9922021709175 1.3785e-05 deg
tp 2458729.472064476740
(2019-Sep-02.97206448)
5.9093e-05 TDB
period 1541.655257750706
4.22
1.0177e-05
2.786e-08
d
yr
n .2335152416145517 1.5415e-09 deg/d
Q 3.111950951147696 1.3695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      9212 days (25.22 yr)  
   first obs. used      1995-09-26  
   last obs. used      2020-12-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:31:00  

Additional Information
 Earth MOID = 1.09876 au 
 Jupiter MOID = 1.90439 au 
 T_jup = 3.381 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457709.5 (2016-Nov-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1907285147444277 4.3347e-08  
q 2.114985725380372 1.1081e-07 au
tp 2457186.965321767528
(2015-Jun-13.46532177)
6.104e-05 TDB
node 203.0102132840502 5.4844e-05 deg
peri 39.29582543246949 5.7189e-05 deg
i 3.443786956044168 6.2313e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      9212 days (25.22 yr)  
   first obs. used      1995-09-26  
   last obs. used      2020-12-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:31:00  

Additional Information
 Jupiter MOID = 1.90439 au 
 T_jup = 3.381 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.878981392949687E-15 -4.787903912797504E-15 -1.751942221575894E-12 1.714614986813109E-14 -4.717836158495659E-13 -3.948391306430891E-16
q -4.787903912797504E-15 1.227986606915144E-14 4.447711739373411E-12 -4.438427262836875E-14 1.204885586193112E-12 1.045276896694023E-15
tp -1.751942221575894E-12 4.447711739373411E-12 3.725822828671717E-9 -2.805968774554678E-11 9.95463239492768E-10 7.274465864670729E-13
node 1.714614986813109E-14 -4.438427262836875E-14 -2.805968774554678E-11 3.007881154167037E-9 -3.009278537186374E-9 -9.273690960731705E-11
peri -4.717836158495659E-13 1.204885586193112E-12 9.95463239492768E-10 -3.009278537186374E-9 3.270588280823472E-9 9.277603584502598E-11
i -3.948391306430891E-16 1.045276896694023E-15 7.274465864670729E-13 -9.273690960731705E-11 9.277603584502598E-11 3.882964259735063E-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 15.61   n/a MPCxxxxx  
diameter diameter 4.038 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37960 (1998 HP64)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HP64 = 1999 VM15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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