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100581 (1997 HA17)
Classification: Main-belt Asteroid          SPK-ID: 2100581
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1275683101108985 3.8263e-08  
a 2.672464942016158 1.8354e-08 au
q 2.331543105532536 1.0062e-07 au
i 4.309304291029575 5.5667e-06 deg
node 174.6020469763638 7.0574e-05 deg
peri 57.05357252193923 7.7251e-05 deg
M 99.10721257689947 2.7225e-05 deg
tp 2458561.191898017894
(2019-Mar-18.69189802)
0.00012194 TDB
period 1595.755874889986
4.37
1.6439e-05
4.501e-08
d
yr
n .2255984174426548 2.3241e-09 deg/d
Q 3.013386778499779 2.0696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      324  
   data-arc span      9082 days (24.87 yr)  
   first obs. used      1994-10-08  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58754  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:05:00  

Additional Information
 Earth MOID = 1.32453 au 
 Jupiter MOID = 1.97864 au 
 T_jup = 3.365 
[ 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 16.6   n/a MPO436468  
diameter diameter 2.833 km 0.778 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100581 (1997 HA17)          Discovered 1997-Apr-29 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 HA17 = 1998 SR169 = 2001 FU125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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