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43801 (1991 PL15)
Classification: Main-belt Asteroid          SPK-ID: 2043801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1461482550403182 4.7591e-08  
a 3.110827916063673 2.09e-08 au
q 2.656185844400258 1.412e-07 au
i 6.441546954288119 4.0941e-06 deg
node 127.9652485171849 3.6191e-05 deg
peri 198.2665838413586 3.8776e-05 deg
M 163.8633171386736 1.581e-05 deg
tp 2458484.296677640620
(2018-Dec-31.79667764)
8.4278e-05 TDB
period 2004.067791276711
5.49
2.0196e-05
5.529e-08
d
yr
n .1796346418853718 1.8103e-09 deg/d
Q 3.565469987727088 2.3954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1016  
   data-arc span      10866 days (29.75 yr)  
   first obs. used      1991-08-08  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50016  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:06:47  

Additional Information
 Earth MOID = 1.64449 au 
 Jupiter MOID = 1.76717 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457490.5 (2016-Apr-12.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1492313957705773 4.8429e-08  
q 2.64558195711694 1.4488e-07 au
tp 2458476.096907660131
(2018-Dec-23.59690766)
8.2085e-05 TDB
node 128.2526957918643 3.6051e-05 deg
peri 196.8466161888068 3.8482e-05 deg
i 6.454555248746903 4.105e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1016  
   data-arc span      10866 days (29.75 yr)  
   first obs. used      1991-08-08  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50016  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:06:47  

Additional Information
 Jupiter MOID = 1.76717 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.345347997935379E-15 -6.972936423436855E-15 1.214657606192538E-12 1.321582399587736E-14 7.021298482006393E-14 -1.961620983268985E-15
q -6.972936423436855E-15 2.098895522734928E-14 -3.194207900231132E-12 -3.882940545311803E-14 -1.61065638528264E-13 6.060297494153569E-15
tp 1.214657606192538E-12 -3.194207900231132E-12 6.738009602390588E-9 3.635398050835964E-12 1.101331295566965E-9 -3.545726194010671E-12
node 1.321582399587736E-14 -3.882940545311803E-14 3.635398050835964E-12 1.299657840767473E-9 -1.290954374049001E-9 5.624887689910063E-12
peri 7.021298482006393E-14 -1.61065638528264E-13 1.101331295566965E-9 -1.290954374049001E-9 1.480838592111823E-9 -6.221061823083415E-12
i -1.961620983268985E-15 6.060297494153569E-15 -3.545726194010671E-12 5.624887689910063E-12 -6.221061823083415E-12 1.685065067474988E-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 14.35   n/a MPCxxxxx  
diameter diameter 8.044 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43801 (1991 PL15)          Discovered 1991-Aug-08 by Holt, H. E. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PL15 = 2001 KZ61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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