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 ]  
48880 (1998 HU129)
Classification: Main-belt Asteroid          SPK-ID: 2048880
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105673654245077 4.2684e-08  
a 2.219987930391536 8.762e-09 au
q 1.752530920614785 9.7362e-08 au
i 3.806262474667941 5.8892e-06 deg
node 1.475804483367746 6.4227e-05 deg
peri 291.6738290768435 6.5649e-05 deg
M 172.4706897512776 1.2874e-05 deg
tp 2458421.688506628030
(2018-Oct-30.18850663)
4.249e-05 TDB
period 1208.159704784654
3.31
7.1527e-06
1.958e-08
d
yr
n .297973851117777 1.7641e-09 deg/d
Q 2.687444940168287 1.0607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      9963 days (27.28 yr)  
   first obs. used      1992-09-24  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:36:11  

Additional Information
 Earth MOID = .741015 au 
 Jupiter MOID = 2.51731 au 
 T_jup = 3.618 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456659.5 (2014-Jan-02.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2101707230694047 4.2575e-08  
q 1.753948668105828 9.7038e-08 au
tp 2457214.228590421864
(2015-Jul-10.72859042)
4.2094e-05 TDB
node 1.535317522937105 6.4217e-05 deg
peri 291.6009299397046 6.5651e-05 deg
i 3.806557259701699 5.8883e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      9963 days (27.28 yr)  
   first obs. used      1992-09-24  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:36:11  

Additional Information
 Jupiter MOID = 2.51731 au 
 T_jup = 3.618 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.812641695993136E-15 -4.122040032156202E-15 2.062383907904098E-13 2.97380516371599E-15 4.11582048448996E-14 -2.902457627036995E-16
q -4.122040032156202E-15 9.416376009288089E-15 -4.633225206975923E-13 -7.690264664772988E-15 -1.007384855400173E-13 6.341434216895869E-16
tp 2.062383907904098E-13 -4.633225206975923E-13 1.771913570090647E-9 -1.802944361268539E-12 5.814431744562251E-10 3.119819773665663E-13
node 2.97380516371599E-15 -7.690264664772988E-15 -1.802944361268539E-12 4.123781793196815E-9 -4.114400212286634E-9 1.356425555181651E-11
peri 4.11582048448996E-14 -1.007384855400173E-13 5.814431744562251E-10 -4.114400212286634E-9 4.309994147972324E-9 -1.342733040887585E-11
i -2.902457627036995E-16 6.341434216895869E-16 3.119819773665663E-13 1.356425555181651E-11 -1.342733040887585E-11 3.467194311108133E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO293712  

48880 (1998 HU129)          Discovered 1998-Apr-19 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HU129 = 1992 SZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-05 09:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin