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 ]  
136970 (1998 RS44)
Classification: Main-belt Asteroid          SPK-ID: 2136970
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542913156231674 4.2357e-08  
a 2.313092975347854 9.3359e-09 au
q 1.956202817022727 1.0018e-07 au
i 7.171008136976387 6.073e-06 deg
node 145.4724978839723 3.1402e-05 deg
peri 260.0798586436659 3.751e-05 deg
M 269.6572825351569 2.1151e-05 deg
tp 2458922.962124117017
(2020-Mar-14.46212412)
7.605e-05 TDB
period 1284.955422414662
3.52
7.7793e-06
2.13e-08
d
yr
n .2801653611636545 1.6962e-09 deg/d
Q 2.66998313367298 1.0776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      7719 days (21.13 yr)  
   first obs. used      1998-09-13  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56967  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:05:52  

Additional Information
 Earth MOID = .979671 au 
 Jupiter MOID = 2.73096 au 
 T_jup = 3.557 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456957.5 (2014-Oct-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550359636562759 4.2691e-08  
q 1.954028846998749 1.0111e-07 au
tp 2456351.309538341680
(2013-Feb-27.80953834)
7.2039e-05 TDB
node 145.5836099086827 3.1402e-05 deg
peri 259.5492267902438 3.7419e-05 deg
i 7.171983188023607 6.0767e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      7719 days (21.13 yr)  
   first obs. used      1998-09-13  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56967  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:05:52  

Additional Information
 Jupiter MOID = 2.73096 au 
 T_jup = 3.557 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.822548372773589E-15 -4.304487440195852E-15 -1.814352053094818E-12 1.200947419704308E-14 -4.919508079034147E-13 1.499519530501126E-15
q -4.304487440195852E-15 1.022400276418675E-14 4.26880809161143E-12 -2.903347571852682E-14 1.164743510880606E-12 -3.327658980873609E-15
tp -1.814352053094818E-12 4.26880809161143E-12 5.189633372419363E-9 -2.950924678632716E-11 1.476412061343182E-9 -8.369233494054533E-13
node 1.200947419704308E-14 -2.903347571852682E-14 -2.950924678632716E-11 9.860638683365655E-10 -9.859538895969921E-10 7.947924411186406E-11
peri -4.919508079034147E-13 1.164743510880606E-12 1.476412061343182E-9 -9.859538895969921E-10 1.400217852566128E-9 -7.908891970736239E-11
i 1.499519530501126E-15 -3.327658980873609E-15 -8.369233494054533E-13 7.947924411186406E-11 -7.908891970736239E-11 3.692667945428773E-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 16.1   n/a MPO264231  

136970 (1998 RS44)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 RS44 = 2003 AY86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-12 21:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin