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15712 (1989 RN2)
Classification: Main-belt Asteroid          SPK-ID: 2015712
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2057649041583796 3.6126e-08  
a 3.184778210916577 1.8074e-08 au
q 2.529462627581632 1.1789e-07 au
i 11.22266183166958 4.7047e-06 deg
node 349.017167113922 2.0819e-05 deg
peri 320.2572729394376 2.376e-05 deg
M 177.6534156145441 1.2867e-05 deg
tp 2457976.055871134678
(2017-Aug-10.55587113)
7.2065e-05 TDB
period 2075.951566232218
5.68
1.7672e-05
4.838e-08
d
yr
n .1734144504408587 1.4763e-09 deg/d
Q 3.840093794251522 2.1793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1800  
   data-arc span      11194 days (30.65 yr)  
   first obs. used      1989-09-01  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:14:17  

Additional Information
 Earth MOID = 1.52754 au 
 Jupiter MOID = 1.55906 au 
 T_jup = 3.136 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456791.5 (2014-May-14.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2036201946292412 3.5859e-08  
q 2.544825546838246 1.1612e-07 au
tp 2455878.462220830881
(2011-Nov-12.96222083)
6.9859e-05 TDB
node 349.4025085866044 2.106e-05 deg
peri 317.8662698936841 2.384e-05 deg
i 11.13671464765001 4.6716e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1800  
   data-arc span      11194 days (30.65 yr)  
   first obs. used      1989-09-01  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:14:17  

Additional Information
 Jupiter MOID = 1.55906 au 
 T_jup = 3.136 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.285856915169965E-15 -4.13030290962131E-15 3.735550762054243E-13 9.946603203735653E-15 2.772522775844391E-14 3.342567848571268E-15
q -4.13030290962131E-15 1.348493008561784E-14 -1.049644804102012E-12 -3.89665052189275E-14 -4.059334978930628E-14 -1.588280049344928E-14
tp 3.735550762054243E-13 -1.049644804102012E-12 4.8803192684652E-9 3.570498585572235E-11 7.858187651957903E-10 5.008811686696301E-12
node 9.946603203735653E-15 -3.89665052189275E-14 3.570498585572235E-11 4.435260576819327E-10 -4.317209933683133E-10 1.400209015675496E-11
peri 2.772522775844391E-14 -4.059334978930628E-14 7.858187651957903E-10 -4.317209933683133E-10 5.683504806129219E-10 -1.392107000949371E-11
i 3.342567848571268E-15 -1.588280049344928E-14 5.008811686696301E-12 1.400209015675496E-11 -1.392107000949371E-11 2.182404697408465E-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 13.0   n/a MPO384890  
diameter diameter 16.99 km 1.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4
geometric albedo albedo 0.0386   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4

15712 (1989 RN2)          Discovered 1989-Sep-01 by Gilmore, A. C., Kilmartin, P. M. at Lake Tekapo
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 RN2 = 1999 FY31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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