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37969 (1998 HW97)
Classification: Main-belt Asteroid          SPK-ID: 2037969
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454479213344873 3.7398e-08  
a 2.550294946966358 1.1336e-08 au
q 2.179359848140255 9.4706e-08 au
i 6.914069854241288 3.5744e-06 deg
node 245.5539614149448 4.2323e-05 deg
peri 331.8149411677509 4.5246e-05 deg
M 153.5405567904655 1.8462e-05 deg
tp 2458366.039406859586
(2018-Sep-04.53940686)
7.4658e-05 TDB
period 1487.592713645366
4.07
9.9186e-06
2.716e-08
d
yr
n .2420017231180269 1.6136e-09 deg/d
Q 2.921230045792461 1.2985e-08 au
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      7863 days (21.53 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52731  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:41:36  

Additional Information
 Earth MOID = 1.17427 au 
 Jupiter MOID = 2.07446 au 
 T_jup = 3.416 
[ 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 15.2   n/a MPO347795  
diameter diameter 2.800 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.247   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37969 (1998 HW97)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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