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 ]  
441315 (2008 AJ91)
Classification: Main-belt Asteroid          SPK-ID: 2441315
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0868163182886528 9.7288e-08  
a 2.754412151941046 4.9556e-08 au
q 2.515284229859999 2.7318e-07 au
i 4.889128998672024 8.4005e-06 deg
node 113.3679745919638 0.00013265 deg
peri 302.3466159658382 0.00014819 deg
M 298.541287536299 7.6377e-05 deg
tp 2459285.551133564147
(2021-Mar-12.05113356)
0.00035888 TDB
period 1669.712949871865
4.57
4.5061e-05
1.234e-07
d
yr
n .2156059219805576 5.8186e-09 deg/d
Q 2.993540074022093 5.3858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      7029 days (19.24 yr)  
   first obs. used      1999-01-15  
   last obs. used      2018-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58881  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:13:55  

Additional Information
 Earth MOID = 1.53136 au 
 Jupiter MOID = 2.27772 au 
 T_jup = 3.333 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457159.5 (2015-May-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08821737756211327 9.8488e-08  
q 2.512357070733992 2.7812e-07 au
tp 2457605.162596660552
(2016-Aug-04.66259666)
0.00032537 TDB
node 113.483511248114 0.00013304 deg
peri 300.313520254855 0.00014775 deg
i 4.882273599740581 8.3865e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      7029 days (19.24 yr)  
   first obs. used      1999-01-15  
   last obs. used      2018-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58881  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:13:55  

Additional Information
 Jupiter MOID = 2.27772 au 
 T_jup = 3.333 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.699817512268209E-15 -2.702407354999659E-14 -4.525573784046863E-12 7.480679772646375E-15 -1.157370696891378E-12 1.320976795971041E-14
q -2.702407354999659E-14 7.735145765061854E-14 2.046529175991473E-11 -1.741833895758666E-15 4.669025973578716E-12 -3.719988934195746E-14
tp -4.525573784046863E-12 2.046529175991473E-11 1.058640195713129E-7 7.944122191364662E-11 2.107796486809396E-8 -2.783480872186778E-11
node 7.480679772646375E-15 -1.741833895758666E-15 7.944122191364662E-11 1.770094906451717E-8 -1.762231420417735E-8 2.015512557095523E-12
peri -1.157370696891378E-12 4.669025973578716E-12 2.107796486809396E-8 -1.762231420417735E-8 2.183097860405104E-8 -7.93841696559871E-12
i 1.320976795971041E-14 -3.719988934195746E-14 -2.783480872186778E-11 2.015512557095523E-12 -7.93841696559871E-12 7.033346618811545E-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 17.0   n/a MPO440826  

441315 (2008 AJ91)          Discovered 2007-Dec-04 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-01 18:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin