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48863 (1998 HY37)
Classification: Main-belt Asteroid          SPK-ID: 2048863
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623812925846382 2.7817e-08  
a 2.169465745609351 7.4203e-09 au
q 1.817185093619209 6.1013e-08 au
i 2.75667113164522 3.7023e-06 deg
node 269.8224045610625 9.1587e-05 deg
peri 25.94786829551563 9.3036e-05 deg
M 258.6589119614551 1.8898e-05 deg
tp 2459329.056970046329
(2021-Apr-24.55697005)
6.2232e-05 TDB
period 1167.152548941361
3.20
5.9881e-06
1.639e-08
d
yr
n .3084429711664766 1.5825e-09 deg/d
Q 2.521746397599494 8.6252e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55778  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:15  

Additional Information
 Earth MOID = .80168 au 
 Jupiter MOID = 2.65984 au 
 T_jup = 3.671 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456426.5 (2013-May-14.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623010048776543 2.7769e-08  
q 1.817702526711604 6.0883e-08 au
tp 2456994.668476149642
(2014-Dec-03.16847615)
5.6166e-05 TDB
node 269.9007769179718 9.1616e-05 deg
peri 25.89815773306658 9.3069e-05 deg
i 2.756119614729806 3.7009e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55778  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:15  

Additional Information
 Jupiter MOID = 2.65984 au 
 T_jup = 3.671 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.711324438022859E-16 -1.682024309573901E-15 -1.223676454299803E-13 1.244264572920498E-15 -3.986342482597106E-14 1.124554522144172E-16
q -1.682024309573901E-15 3.706781721386059E-15 4.089984555845503E-13 -4.15959865178087E-15 1.240061705671422E-13 -2.035762210302966E-16
tp -1.223676454299803E-13 4.089984555845503E-13 3.154568593708796E-9 -1.152647466582151E-11 9.402759524671796E-10 2.890832342296244E-13
node 1.244264572920498E-15 -4.15959865178087E-15 -1.152647466582151E-11 8.39352835340724E-9 -8.386636476606676E-9 -1.254242602591708E-10
peri -3.986342482597106E-14 1.240061705671422E-13 9.402759524671796E-10 -8.386636476606676E-9 8.661777099975314E-9 1.253509166291389E-10
i 1.124554522144172E-16 -2.035762210302966E-16 2.890832342296244E-13 -1.254242602591708E-10 1.253509166291389E-10 1.369649269888882E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO347859  

48863 (1998 HY37)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HY37 = 1999 XX61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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