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JPL Small-Body Database Browser
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56546 (2000 HF66)
Classification: Main-belt Asteroid          SPK-ID: 2056546
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1044868343538551 3.825e-08  
a 2.30786352172785 8.5009e-09 au
q 2.066722168221767 8.8579e-08 au
i 3.440951497089283 4.2469e-06 deg
node 244.1752809535716 6.7289e-05 deg
peri 340.2193431354501 7.0204e-05 deg
M 265.3204952408778 2.0935e-05 deg
tp 2459337.296126306705
(2021-May-02.79612631)
7.5189e-05 TDB
period 1280.600334559017
3.51
7.0756e-06
1.937e-08
d
yr
n .2811181523890264 1.5532e-09 deg/d
Q 2.549004875233932 9.3892e-09 au
  Orbit Determination Parameters
   # obs. used (total)      902  
   data-arc span      9224 days (25.25 yr)  
   first obs. used      1994-10-27  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:50:47  

Additional Information
 Earth MOID = 1.05776 au 
 Jupiter MOID = 2.43233 au 
 T_jup = 3.577 
[ 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 15.8   n/a MPO302371  
diameter diameter 1.591 km 0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.253   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56546 (2000 HF66)          Discovered 2000-Apr-26 by LONEOS at Anderson Mesa
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2172-Sep-22 15:58 < 00:01 Hebe 0.0259742938521645 0.0259587332125895 0.0259898665996316 8.26361010647771 8.26361007751468 2514632.165360798 0.853371382554799 1177.43670098105 40.713149553608 48.801865962607 71833.244822291 T 25 CATAB v2.0f-lin.ifort 2020-Feb-23 11:50:49 2020-Feb-23 11:50

Alternate Designations
 2000 HF66 = 2001 TG91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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