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 ]  
233798 (2008 US94)
Classification: Main-belt Asteroid          SPK-ID: 2233798
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1173220477220169 4.9762e-08  
a 2.571728312454318 2.4326e-08 au
q 2.270007880652491 1.3215e-07 au
i 10.58767388907122 6.9443e-06 deg
node 36.78721550121102 2.2521e-05 deg
peri 241.1410060440809 3.5901e-05 deg
M 52.98825734551988 2.6335e-05 deg
tp 2458778.775751243673
(2019-Oct-22.27575124)
0.00011069 TDB
period 1506.385254978133
4.12
2.1374e-05
5.852e-08
d
yr
n .2389826897271548 3.3909e-09 deg/d
Q 2.873448744256146 2.718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      8138 days (22.28 yr)  
   first obs. used      1998-04-20  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58247  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 16:20:16  

Additional Information
 Earth MOID = 1.27596 au 
 Jupiter MOID = 2.25453 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457510.5 (2016-May-02.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1168688199849669 4.9513e-08  
q 2.271871287026276 1.3142e-07 au
tp 2457273.960318140510
(2015-Sep-08.46031814)
0.0001177 TDB
node 36.8253000745755 2.2499e-05 deg
peri 241.6326195224644 3.611e-05 deg
i 10.59203769582399 6.9464e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      8138 days (22.28 yr)  
   first obs. used      1998-04-20  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58247  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 16:20:16  

Additional Information
 Jupiter MOID = 2.25453 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.451559596519038E-15 -6.42020086996559E-15 -2.719745746689056E-12 2.087680647637338E-14 -6.646292031079545E-13 4.681922825126448E-15
q -6.42020086996559E-15 1.72700487156096E-14 6.100943350318189E-12 -5.493323697373668E-14 1.516887923464859E-12 -1.21265978876506E-14
tp -2.719745746689056E-12 6.100943350318189E-12 1.385334781726729E-8 -4.472854331743632E-11 3.334097912430438E-9 3.28417154249167E-13
node 2.087680647637338E-14 -5.493323697373668E-14 -4.472854331743632E-11 5.06211377806404E-10 -5.076791295831468E-10 2.915524661554375E-11
peri -6.646292031079545E-13 1.516887923464859E-12 3.334097912430438E-9 -5.076791295831468E-10 1.303960981018715E-9 -2.840003072051085E-11
i 4.681922825126448E-15 -1.21265978876506E-14 3.28417154249167E-13 2.915524661554375E-11 -2.840003072051085E-11 4.825222362380574E-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 15.9   n/a MPO475907  

233798 (2008 US94)          Discovered 2008-Oct-28 by Hobart, J. at Kachina
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-20 17:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin