Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
108261 (2001 HX51)
Classification: Main-belt Asteroid          SPK-ID: 2108261
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09090488556571868 4.3022e-08  
a 3.104900205918297 3.0571e-08 au
q 2.822649608006318 1.43e-07 au
i 21.06110483647387 5.3305e-06 deg
node 208.8860925947651 1.3466e-05 deg
peri 254.3583003685779 3.2969e-05 deg
M 282.3020464463627 3.1603e-05 deg
tp 2459431.797534598997
(2021-Aug-05.29753460)
0.00017773 TDB
period 1998.34236751748
5.47
2.9514e-05
8.08e-08
d
yr
n .1801493106745388 2.6606e-09 deg/d
Q 3.387150803830276 3.335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      7986 days (21.86 yr)  
   first obs. used      1998-11-10  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53121  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:52:49  

Additional Information
 Earth MOID = 1.91637 au 
 Jupiter MOID = 1.93144 au 
 T_jup = 3.112 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457749.5 (2016-Dec-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .087444437217797 4.2891e-08  
q 2.837112474086874 1.4183e-07 au
tp 2457431.530035681026
(2016-Feb-13.03003568)
0.00017681 TDB
node 208.9288155562446 1.345e-05 deg
peri 254.469428674409 3.415e-05 deg
i 21.05999442287735 5.334e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      7986 days (21.86 yr)  
   first obs. used      1998-11-10  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53121  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:52:49  

Additional Information
 Jupiter MOID = 1.93144 au 
 T_jup = 3.112 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.83966885373111E-15 -5.970832215878321E-15 -2.80282297211385E-13 9.410380621989754E-16 -4.838685899119809E-14 -1.112129442080384E-15
q -5.970832215878321E-15 2.01150578363636E-14 1.829260213437677E-12 -4.538876399921857E-15 3.350903645937742E-13 6.605219197503424E-15
tp -2.80282297211385E-13 1.829260213437677E-12 3.126153697075306E-8 -3.970278084635495E-12 5.580280232720412E-9 1.889476947075374E-11
node 9.410380621989754E-16 -4.538876399921857E-15 -3.970278084635495E-12 1.809115846522162E-10 -1.692398067583581E-10 -9.097273242361705E-12
peri -4.838685899119809E-14 3.350903645937742E-13 5.580280232720412E-9 -1.692398067583581E-10 1.166241474630903E-9 1.181258973001106E-11
i -1.112129442080384E-15 6.605219197503424E-15 1.889476947075374E-11 -9.097273242361705E-12 1.181258973001106E-11 2.845158763073549E-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 14.6   n/a MPO453540  
diameter diameter 7.910 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108261 (2001 HX51)          Discovered 2001-Apr-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 HX51 = 1998 VP19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-30 10:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin