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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456683.5 (2014-Jan-26.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .102938443909726 1.2474e-07  
q 2.274226796998487 3.1899e-07 au
tp 2456550.895565180081
(2013-Sep-15.39556518)
8.1701e-05 TDB
node 53.92642773187485 1.5886e-05 deg
peri 340.2185953349019 2.857e-05 deg
i 15.74824384559824 6.4752e-06 deg
  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
 Jupiter MOID = 2.61497 au 
 T_jup = 3.388 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.556080086259483E-14 -3.976734509513939E-14 -3.673152038263714E-12 -3.137412822115481E-14 -1.665130720382881E-12 3.750231915208455E-14
q -3.976734509513939E-14 1.017542257302307E-13 9.338519979194513E-12 8.01028736579972E-14 4.244842190648929E-12 -9.536818550408624E-14
tp -3.673152038263714E-12 9.338519979194513E-12 6.674981376876645E-9 2.934766197444143E-13 1.906627804581552E-9 -1.586197599250391E-11
node -3.137412822115481E-14 8.01028736579972E-14 2.934766197444143E-13 2.523779610527974E-10 -2.405726525813215E-10 -4.102298312010885E-11
peri -1.665130720382881E-12 4.244842190648929E-12 1.906627804581552E-9 -2.405726525813215E-10 8.162611564820666E-10 3.35914445154292E-11
i 3.750231915208455E-14 -9.536818550408624E-14 -1.586197599250391E-11 -4.102298312010885E-11 3.35914445154292E-11 4.192857076649628E-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 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

[ 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
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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