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78248 (2002 PY5)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078248
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0478664945911151 4.2198e-08  
a 3.236163563450497 2.7815e-08 au
q 3.08125975774463 1.388e-07 au
i 12.57813666419396 5.9976e-06 deg
node 211.4524892343028 2.0329e-05 deg
peri 40.16462508709576 6.8673e-05 deg
M 126.6938319174987 6.7497e-05 deg
tp 2458452.163215384970
(2018-Nov-29.66321538)		 0.00039648 TDB
period 2126.395881978226
5.82		 2.7415e-05
7.506e-08		 d
yr
n .1693005536039156 2.1827e-09 deg/d
Q 3.391067369156364 2.9147e-08 au
   Orbit Determination Parameters
   # obs. used (total)      505  
   data-arc span      8498 days (23.27 yr)  
   first obs. used      1997-09-30  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:20  

Additional Information
 Earth MOID = 2.07856 au 
 Jupiter MOID = 1.61211 au 
 T_jup = 3.146 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457431.5 (2016-Feb-13.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04885995722841055 4.0475e-08  
q 3.078442804475486 1.328e-07 au
tp 2458477.823353588890
(2018-Dec-25.32335359)		 0.00040155 TDB
node 211.5442389423513 2.0283e-05 deg
peri 44.76970738437783 6.945e-05 deg
i 12.59150931214507 6.0076e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      505  
   data-arc span      8498 days (23.27 yr)  
   first obs. used      1997-09-30  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:20  

Additional Information
 Jupiter MOID = 1.61211 au 
 T_jup = 3.146 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.638239667550944E-15 -5.268099031951609E-15 -5.556729067277267E-12 -1.334535277183494E-15 -9.226120513803865E-13 2.41905956780014E-15
q -5.268099031951609E-15 1.763472193719841E-14 1.981917612205391E-11 3.316858466740063E-16 3.234298065999232E-12 -5.103457348984916E-15
tp -5.556729067277267E-12 1.981917612205391E-11 1.612397097682591E-7 -4.748031546084352E-11 2.66829388544118E-8 2.231849367780099E-11
node -1.334535277183494E-15 3.316858466740063E-16 -4.748031546084352E-11 4.113947890303485E-10 -4.086415920201065E-10 -3.331431625829898E-11
peri -9.226120513803865E-13 3.234298065999232E-12 2.66829388544118E-8 -4.086415920201065E-10 4.823344383781635E-9 3.600943766012643E-11
i 2.41905956780014E-15 -5.103457348984916E-15 2.231849367780099E-11 -3.331431625829898E-11 3.600943766012643E-11 3.60910849694161E-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 14.95   n/a E2021B10  
diameter diameter 6.353 km 0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78248 (2002 PY5)          Discovered 2002-Aug-04 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 PY5 = 1997 SY24 = 2001 KT18 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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