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70302 (1999 RD131)
Classification: Main-belt Asteroid          SPK-ID: 2070302
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1295041427394146 3.2857e-08  
a 2.385096184385169 1.0713e-08 au
q 2.076216347675319 8.1474e-08 au
i 5.657780621994759 3.7698e-06 deg
node 238.1322185059179 3.6635e-05 deg
peri 73.02638005995257 4.0075e-05 deg
M 298.8347673504672 1.831e-05 deg
tp 2459429.091145801807
(2021-Aug-02.59114580)
6.9209e-05 TDB
period 1345.418122745897
3.68
9.0646e-06
2.482e-08
d
yr
n .2675748110671106 1.8027e-09 deg/d
Q 2.693976021095019 1.21e-08 au
  Orbit Determination Parameters
   # obs. used (total)      993  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57499  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:48:51  

Additional Information
 Earth MOID = 1.06842 au 
 Jupiter MOID = 2.54091 au 
 T_jup = 3.518 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457216.5 (2015-Jul-13.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1300089446727146 3.2974e-08  
q 2.074945942279998 8.18e-08 au
tp 2456735.503347322993
(2014-Mar-19.00334732)
6.1245e-05 TDB
node 238.2420407323679 3.6678e-05 deg
peri 72.4540184356315 4.0054e-05 deg
i 5.654155546738627 3.7681e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      993  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57499  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:48:51  

Additional Information
 Jupiter MOID = 2.54091 au 
 T_jup = 3.518 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.087282530534055E-15 -2.680918563486789E-15 -5.787931737005789E-14 -1.736383077066837E-15 -3.310476265037444E-14 4.052382723775221E-16
q -2.680918563486789E-15 6.691189248974343E-15 3.031228352204853E-13 4.149844889304255E-15 1.280015180593757E-13 -8.335419133648297E-16
tp -5.787931737005789E-14 3.031228352204853E-13 3.750995875622581E-9 -1.01952900393063E-11 9.976191385091734E-10 -9.624448053187585E-14
node -1.736383077066837E-15 4.149844889304255E-15 -1.01952900393063E-11 1.3452534013624E-9 -1.340922767383019E-9 -3.825147866884805E-12
peri -3.310476265037444E-14 1.280015180593757E-13 9.976191385091734E-10 -1.340922767383019E-9 1.604289583876347E-9 3.764137963452248E-12
i 4.052382723775221E-16 -8.335419133648297E-16 -9.624448053187585E-14 -3.825147866884805E-12 3.764137963452248E-12 1.419850650997859E-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 15.36   n/a E2021B10  
diameter diameter 1.944 km 0.331 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.295   0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70302 (1999 RD131)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RD131 = 2001 AP22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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