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15746 (1991 PN8)
Classification: Main-belt Asteroid          SPK-ID: 2015746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .2326285024896035 2.9115e-08  
a 2.76597065571759 1.0999e-08 au
q 2.12252704414782 8.0051e-08 au
i 1.962153181690831 3.6249e-06 deg
node 175.1246418854812 8.9267e-05 deg
peri 213.7644128366137 8.9778e-05 deg
M 46.28808688144557 7.1425e-06 deg
tp 2458784.458835224209
(2019-Oct-27.95883522)
3.3674e-05 TDB
period 1680.234042043779
4.60
1.0023e-05
2.744e-08
d
yr
n .2142558661423788 1.278e-09 deg/d
Q 3.40941426728736 1.3558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1561  
   data-arc span      13721 days (37.57 yr)  
   first obs. used      1982-09-21  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47445  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:15:01  

Additional Information
 Earth MOID = 1.1279 au 
 Jupiter MOID = 2.03822 au 
 T_jup = 3.299 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO502290  
diameter diameter 6.475 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.073   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15746 (1991 PN8)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 PN8 = 1982 SU9 = 1996 TM14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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