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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
48901 (1998 MO31)
Classification: Main-belt Asteroid          SPK-ID: 2048901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2385407277437413 3.9027e-08  
a 2.346209613090746 9.109e-09 au
q 1.786543064544718 9.1008e-08 au
i 1.681701705958796 4.4717e-06 deg
node 82.88648035972452 0.00016235 deg
peri 186.2183530143452 0.00016267 deg
M 45.95075247868471 1.1944e-05 deg
tp 2458832.952184974773
(2019-Dec-15.45218497)
4.2978e-05 TDB
period 1312.649089632672
3.59
7.6444e-06
2.093e-08
d
yr
n .2742545611338834 1.5972e-09 deg/d
Q 2.905876161636774 1.1282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      9136 days (25.01 yr)  
   first obs. used      1994-04-03  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59109  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:26  

Additional Information
 Earth MOID = .770463 au 
 Jupiter MOID = 2.19888 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456427.5 (2013-May-15.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2396432652721917 3.9211e-08  
q 1.783332818451636 9.1509e-08 au
tp 2456206.462064955853
(2012-Oct-05.96206496)
3.5898e-05 TDB
node 82.91951950859463 0.00016209 deg
peri 186.0535096581765 0.00016239 deg
i 1.683106955421724 4.4773e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      9136 days (25.01 yr)  
   first obs. used      1994-04-03  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59109  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:26  

Additional Information
 Jupiter MOID = 2.19888 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.537497643007373E-15 -3.578237115578697E-15 5.731052680808281E-14 7.319705611259222E-15 5.793549845110384E-14 7.332817213073481E-18
q -3.578237115578697E-15 8.373829859677602E-15 -7.000302447716399E-14 -1.637272384255691E-14 -1.17586635914538E-13 8.433068543871175E-17
tp 5.731052680808281E-14 -7.000302447716399E-14 1.288679183948056E-9 8.677362167558033E-12 3.785193985894444E-10 7.407796717753748E-13
node 7.319705611259222E-15 -1.637272384255691E-14 8.677362167558033E-12 2.627162564220699E-8 -2.625707870201953E-8 -1.217455834942783E-11
peri 5.793549845110384E-14 -1.17586635914538E-13 3.785193985894444E-10 -2.625707870201953E-8 2.637187206096149E-8 1.237702306729563E-11
i 7.332817213073481E-18 8.433068543871175E-17 7.407796717753748E-13 -1.217455834942783E-11 1.237702306729563E-11 2.004657201559141E-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 MPO324747  

48901 (1998 MO31)          Discovered 1998-Jun-24 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 MO31 = 2001 DA93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-29 17:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin