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 ]  
101960 Molau (1999 RR38)
Classification: Main-belt Asteroid          SPK-ID: 2101960
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2246237819696956 4.8438e-08  
a 2.308114265921985 5.3847e-09 au
q 1.789656910292381 1.122e-07 au
i .3747586530636914 5.6577e-06 deg
node 172.0437938231902 0.00040036 deg
peri 150.754553337048 0.0004006 deg
M 42.48787356605735 1.0213e-05 deg
tp 2459049.336520476477
(2020-Jul-18.83652048)
3.641e-05 TDB
period 1280.809041757797
3.51
4.4821e-06
1.227e-08
d
yr
n .2810723443253741 9.8359e-10 deg/d
Q 2.826571621551589 6.5943e-09 au
  Orbit Determination Parameters
   # obs. used (total)      623  
   data-arc span      10339 days (28.31 yr)  
   first obs. used      1992-08-25  
   last obs. used      2020-12-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52564  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:38  

Additional Information
 Earth MOID = .775304 au 
 Jupiter MOID = 2.50152 au 
 T_jup = 3.552 
[ show covariance matrix ]

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 17.12   n/a E2021B55  

101960 Molau           Discovered 1999 Sept. 11 by A. Knöfel at Drebach.
Sirko Molau (b. 1971) is a software programmer who developed software for the real-time detection of meteors on a video stream. He organized a video meteor network in the International Meteor Organization.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 1999 RR38 = 1992 SN17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 20:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin