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101796 (1999 HN3)
Classification: Main-belt Asteroid          SPK-ID: 2101796
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028863450375775 1.2545e-07  
a 2.536316220579403 1.2863e-08 au
q 2.275363914784466 3.2097e-07 au
i 15.73145069497486 6.4725e-06 deg
node 53.79796563793764 1.5907e-05 deg
peri 339.4104625578231 2.827e-05 deg
M 287.9195251264302 2.0541e-05 deg
tp 2459495.905559216264
(2021-Oct-08.40555922)		 8.4852e-05 TDB
period 1475.378755542154
4.04		 1.1224e-05
3.073e-08		 d
yr
n .2440051401361758 1.8563e-09 deg/d
Q 2.797268526374339 1.4187e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1364  
   data-arc span      8319 days (22.78 yr)  
   first obs. used      1997-12-06  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53391  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:27  

Additional Information
 Earth MOID = 1.28786 au 
 Jupiter MOID = 2.61497 au 
 T_jup = 3.388 
[ 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 14.11   n/a E2021B55  
diameter diameter 3.838 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.362   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101796 (1999 HN3)          Discovered 1999-Apr-18 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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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
2193-Nov-18 03:19 00:02 Amphi 0.0364179810074861 0.0363905281386762 0.0364454360623208 4.24711258302655 4.24711254585905 2522358.638399669 2.43585593065047 1439.33390379472 108.681139301659 -18.1130547919778 15986.389314518 T 26 CATAB v2.0f-lin.ifort 2020-Nov-12 19:58:30 2020-Nov-12 19:58

Alternate Designations
 1999 HN3 = 2001 UM66 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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