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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248572292779682 4.8807e-08  
a 2.30877933943785 5.4233e-09 au
q 1.789633614157637 1.1316e-07 au
i .3746545985037484 5.7254e-06 deg
node 172.0481857535756 0.0004032 deg
peri 150.7583664279121 0.00040344 deg
M 346.2730413510121 1.025e-05 deg
tp 2459049.358923343377
(2020-Jul-18.85892334)
3.6455e-05 TDB
period 1281.362671323601
3.51
4.5149e-06
1.236e-08
d
yr
n .2809509033286672 9.8993e-10 deg/d
Q 2.827925064718062 6.6428e-09 au
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      10294 days (28.18 yr)  
   first obs. used      1992-08-25  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:31  

Additional Information
 Earth MOID = .777247 au 
 Jupiter MOID = 2.50036 au 
 T_jup = 3.552 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457794.5 (2017-Feb-10.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244233384360302 4.886e-08  
q 1.790389329495059 1.1329e-07 au
tp 2457768.987892429501
(2017-Jan-15.48789243)
3.7596e-05 TDB
node 172.0411900604757 0.00040324 deg
peri 150.9548376083254 0.00040348 deg
i .3745987308149729 5.7253e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      10294 days (28.18 yr)  
   first obs. used      1992-08-25  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:31  

Additional Information
 Jupiter MOID = 2.50036 au 
 T_jup = 3.552 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.387300806407648E-15 -5.531337322046324E-15 1.147952748626293E-12 -1.768956214149259E-14 3.990039492451361E-13 -4.340750340908376E-16
q -5.531337322046324E-15 1.2833654592325E-14 -2.696326717724135E-12 4.236951525517271E-14 -9.385731637802732E-13 9.969870636320959E-16
tp 1.147952748626293E-12 -2.696326717724135E-12 1.413431433339235E-9 -1.579283406089754E-11 5.305182072182441E-10 -2.228128511432339E-13
node -1.768956214149259E-14 4.236951525517271E-14 -1.579283406089754E-11 1.625991007828381E-7 -1.626001344768858E-7 -6.066983557082503E-11
peri 3.990039492451361E-13 -9.385731637802732E-13 5.305182072182441E-10 -1.626001344768858E-7 1.627957260591746E-7 6.059656832759324E-11
i -4.340750340908376E-16 9.969870636320959E-16 -2.228128511432339E-13 -6.066983557082503E-11 6.059656832759324E-11 3.277915438310586E-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 17.0   n/a MPO469027  

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 ]
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