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79137 (1991 PD15)
Classification: Mars-crossing Asteroid          SPK-ID: 2079137
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3045185748399324 3.1085e-08  
a 2.262333987204812 8.9294e-09 au
q 1.573411265609261 7.0732e-08 au
i 5.662834438676531 3.285e-06 deg
node 290.9666030061816 4.223e-05 deg
peri 35.17024532516446 4.2893e-05 deg
M 280.9274895040971 9.6586e-06 deg
tp 2459669.496157114807
(2022-Mar-30.99615711)
3.4421e-05 TDB
period 1242.892326865263
3.40
7.3585e-06
2.015e-08
d
yr
n .2896469728057355 1.7149e-09 deg/d
Q 2.951256708800363 1.1649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      10902 days (29.85 yr)  
   first obs. used      1991-08-06  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:07:50  

Additional Information
 Earth MOID = .564919 au 
 Jupiter MOID = 2.41207 au 
 T_jup = 3.550 
[ 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 15.63   n/a E2021B10  
diameter diameter 2.181 km 0.490 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.256   0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

79137 (1991 PD15)          Discovered 1991-Aug-06 by Holt, H. E. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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