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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2058537118973794 3.5296e-08  
a 3.184446728147293 1.7141e-08 au
q 2.528916548818708 1.1595e-07 au
i 11.22427673724716 4.5649e-06 deg
node 349.0121688202157 1.7886e-05 deg
peri 320.3070442435436 2.0808e-05 deg
M 212.2750721568951 1.2789e-05 deg
tp 2460052.227549134355
(2023-Apr-17.72754913)
7.671e-05 TDB
period 2075.627466300228
5.68
1.6759e-05
4.588e-08
d
yr
n .1734415283305603 1.4004e-09 deg/d
Q 3.839976907475878 2.067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2049  
   data-arc span      11518 days (31.53 yr)  
   first obs. used      1989-09-01  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46771  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:06:40  

Additional Information
 Earth MOID = 1.52503 au 
 Jupiter MOID = 1.55926 au 
 T_jup = 3.136 
[ 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 12.98   n/a E2021B10  
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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