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 ]  
20535 Marshburrows (1999 RV74)
Classification: Main-belt Asteroid          SPK-ID: 2020535
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1161374305935933 3.5546e-08  
a 2.250146913026674 6.8436e-09 au
q 1.98882063208965 7.9527e-08 au
i 4.438815627663343 3.4444e-06 deg
node 104.4345429837454 4.8601e-05 deg
peri 78.77659246506583 5.0786e-05 deg
M 208.1845232172999 1.4825e-05 deg
tp 2459520.410137213208
(2021-Nov-01.91013721)
5.1418e-05 TDB
period 1232.862771064216
3.38
5.6244e-06
1.54e-08
d
yr
n .2920033019483957 1.3321e-09 deg/d
Q 2.511473193963697 7.6383e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1504  
   data-arc span      10484 days (28.70 yr)  
   first obs. used      1991-02-18  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52629  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 00:07:53  

Additional Information
 Earth MOID = .996874 au 
 Jupiter MOID = 2.45254 au 
 T_jup = 3.615 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456805.5 (2014-May-28.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160176244106971 3.5563e-08  
q 1.989763459078092 7.9657e-08 au
tp 2457054.147979642945
(2015-Jan-31.64797964)
4.9381e-05 TDB
node 104.4608397073778 4.8607e-05 deg
peri 78.80170123502326 5.0793e-05 deg
i 4.438227335494489 3.4436e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1504  
   data-arc span      10484 days (28.70 yr)  
   first obs. used      1991-02-18  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52629  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 00:07:53  

Additional Information
 Jupiter MOID = 2.45254 au 
 T_jup = 3.615 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.264716116576049E-15 -2.824682118815834E-15 -1.053467886161547E-13 -8.183779951949655E-15 -4.135861660639939E-14 -6.684072875959759E-16
q -2.824682118815834E-15 6.345267675248164E-15 2.602060619926575E-13 1.814517471627633E-14 9.703978497999325E-14 1.580995762057384E-15
tp -1.053467886161547E-13 2.602060619926575E-13 2.438440014908976E-9 -2.922717704126204E-12 7.401037604006683E-10 -6.316106826648462E-13
node -8.183779951949655E-15 1.814517471627633E-14 -2.922717704126204E-12 2.362647788657432E-9 -2.35611191689552E-9 1.497532359450682E-11
peri -4.135861660639939E-14 9.703978497999325E-14 7.401037604006683E-10 -2.35611191689552E-9 2.579891668526551E-9 -1.513826817287779E-11
i -6.684072875959759E-16 1.580995762057384E-15 -6.316106826648462E-13 1.497532359450682E-11 -1.513826817287779E-11 1.185862453975065E-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 14.8   n/a MPO337431  

20535 Marshburrows           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Marsha Burrows mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the Buckner Fanning Christian School at Mission Springs, San Antonio, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RV74 = 1998 HZ131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-06 16:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin