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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456823.5 (2014-Jun-15.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .104492858244914 3.8231e-08  
q 2.066443397227781 8.852e-08 au
tp 2456777.090228162798
(2014-Apr-29.59022816)
7.0826e-05 TDB
node 244.215473977517 6.7335e-05 deg
peri 340.3889552192836 7.0253e-05 deg
i 3.439447776620522 4.2461e-06 deg
  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
 Jupiter MOID = 2.43233 au 
 T_jup = 3.577 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.46160592885986E-15 -3.371743268844607E-15 1.253523069034936E-13 -3.63804716798778E-15 6.037888350204018E-14 5.002363686671935E-16
q -3.371743268844607E-15 7.835723803046192E-15 -1.729232225182287E-13 6.831040693548014E-15 -1.062010033770342E-13 -1.04240801802528E-15
tp 1.253523069034936E-13 -1.729232225182287E-13 5.016334753321172E-9 -1.693895482423431E-11 1.432934244005581E-9 1.049788888066367E-12
node -3.63804716798778E-15 6.831040693548014E-15 -1.693895482423431E-11 4.53405869792053E-9 -4.530268499033708E-9 6.162232431746247E-12
peri 6.037888350204018E-14 -1.062010033770342E-13 1.432934244005581E-9 -4.530268499033708E-9 4.935490607374195E-9 -5.851595149142715E-12
i 5.002363686671935E-16 -1.04240801802528E-15 1.049788888066367E-12 6.162232431746247E-12 -5.851595149142715E-12 1.802909093767215E-11

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

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