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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .102886342227597 1.2527e-07  
a 2.536316223255874 1.2843e-08 au
q 2.275363924312564 3.2049e-07 au
i 15.73145065990678 6.4462e-06 deg
node 53.7979655242051 1.5903e-05 deg
peri 339.4104632402754 2.8261e-05 deg
M 287.9195242922701 2.0537e-05 deg
tp 2459495.905563102475
(2021-Oct-08.40556310)
8.4838e-05 TDB
period 1475.378757877516
4.04
1.1206e-05
3.068e-08
d
yr
n .2440051397499426 1.8533e-09 deg/d
Q 2.797268522199185 1.4164e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1372  
   data-arc span      8319 days (22.78 yr)  
   first obs. used      1997-12-06  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53441  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:38  

Additional Information
 Earth MOID = 1.28786 au 
 Jupiter MOID = 2.61497 au 
 T_jup = 3.388 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456690.5 (2014-Feb-02.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1029498342836256 1.2456e-07  
q 2.274231033969111 3.1851e-07 au
tp 2456550.908984877893
(2013-Sep-15.40898488)
8.1654e-05 TDB
node 53.92622504312695 1.5883e-05 deg
peri 340.2226302424727 2.8563e-05 deg
i 15.7480980940221 6.4488e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1372  
   data-arc span      8319 days (22.78 yr)  
   first obs. used      1997-12-06  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53441  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:38  

Additional Information
 Jupiter MOID = 2.61497 au 
 T_jup = 3.388 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.551619559887602E-14 -3.965041538555769E-14 -3.692835522769121E-12 -3.155062593380283E-14 -1.66898455799146E-12 3.787425563994145E-14
q -3.965041538555769E-14 1.014476249358296E-13 9.390230957522093E-12 8.061578636175974E-14 4.254949007492595E-12 -9.635552258867882E-14
tp -3.692835522769121E-12 9.390230957522093E-12 6.667448590630228E-9 3.678261808728333E-13 1.905079146154656E-9 -1.596030105017032E-11
node -3.155062593380283E-14 8.061578636175974E-14 3.678261808728333E-13 2.522800083711644E-10 -2.404503523795872E-10 -4.083527901089624E-11
peri -1.66898455799146E-12 4.254949007492595E-12 1.905079146154656E-9 -2.404503523795872E-10 8.158286983295966E-10 3.33684837800539E-11
i 3.787425563994145E-14 -9.635552258867882E-14 -1.596030105017032E-11 -4.083527901089624E-11 3.33684837800539E-11 4.158708284918613E-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 27 CATAB v2.0f-lin.ifort 2021-Apr-13 15:38:42 2021-Apr-13 15:38

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