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100569 (1997 HR)
Classification: Main-belt Asteroid          SPK-ID: 2100569
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0577788697333619 4.1372e-08  
a 2.548032778035439 1.3224e-08 au
q 2.400810324076993 1.0315e-07 au
i 4.732394625497915 3.444e-06 deg
node 41.43191593687025 5.375e-05 deg
peri 265.3099426211649 6.1774e-05 deg
M 159.3943011811565 3.0554e-05 deg
tp 2458342.726713611231
(2018-Aug-12.22671361)
0.00012547 TDB
period 1485.613860377782
4.07
1.1566e-05
3.167e-08
d
yr
n .2423240719553158 1.8865e-09 deg/d
Q 2.695255231993885 1.3988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      8310 days (22.75 yr)  
   first obs. used      1997-04-28  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55255  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:07:42  

Additional Information
 Earth MOID = 1.39167 au 
 Jupiter MOID = 2.42894 au 
 T_jup = 3.435 
[ show covariance matrix ]

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 MPO502723  
diameter diameter 2.167 km 0.350 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.216   0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100569 (1997 HR)          Discovered 1997-Apr-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1997 HR = 2002 PY99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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