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37964 (1998 HR84)
Classification: Main-belt Asteroid          SPK-ID: 2037964
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07081293695819572 3.2715e-08  
a 2.619599012876305 1.3663e-08 au
q 2.434097513121744 8.8998e-08 au
i 14.45548168917779 5.9885e-06 deg
node 201.9180099274459 1.3677e-05 deg
peri 71.71840554245743 4.6026e-05 deg
M 25.406033786865 4.2842e-05 deg
tp 2458891.208842756079
(2020-Feb-11.70884276)
0.00018424 TDB
period 1548.640647252575
4.24
1.2116e-05
3.317e-08
d
yr
n .2324619340443322 1.8187e-09 deg/d
Q 2.805100512630867 1.4631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1057  
   data-arc span      8596 days (23.53 yr)  
   first obs. used      1995-10-28  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5523  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:02:05  

Additional Information
 Earth MOID = 1.4623 au 
 Jupiter MOID = 2.26726 au 
 T_jup = 3.357 
[ show covariance matrix ]

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 14.4   n/a MPO337567  
diameter diameter 4.060 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.204   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37964 (1998 HR84)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HR84 = 1999 RY103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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