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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04786649579489427 4.1136e-08  
a 3.236163559966901 2.7425e-08 au
q 3.081259750532155 1.3437e-07 au
i 12.57813761887526 5.8159e-06 deg
node 211.4524849264544 2.011e-05 deg
peri 40.16463341316019 6.5757e-05 deg
M 126.6938282852303 6.4202e-05 deg
tp 2458452.163238047857
(2018-Nov-29.66323805)
0.00037738 TDB
period 2126.395878544761
5.82
2.703e-05
7.4e-08
d
yr
n .1693005538772831 2.1521e-09 deg/d
Q 3.391067369401646 2.8738e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      8535 days (23.37 yr)  
   first obs. used      1997-09-30  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57271  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:35:50  

Additional Information
 Earth MOID = 2.07856 au 
 Jupiter MOID = 1.61211 au 
 T_jup = 3.146 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457488.5 (2016-Apr-10.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04890055732339166 3.9632e-08  
q 3.078198853101032 1.2919e-07 au
tp 2458477.662433498541
(2018-Dec-25.16243350)
0.0003809 TDB
node 211.5445545976058 2.0065e-05 deg
peri 44.75378156442865 6.6291e-05 deg
i 12.5915669031282 5.8254e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      8535 days (23.37 yr)  
   first obs. used      1997-09-30  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57271  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:35:50  

Additional Information
 Jupiter MOID = 1.61211 au 
 T_jup = 3.146 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.570677990860893E-15 -5.015447856204221E-15 -4.577644776494177E-12 -1.58449390104285E-15 -7.668038408787295E-13 2.328090460558839E-15
q -5.015447856204221E-15 1.668927934995441E-14 1.618944387117781E-11 1.744935511455902E-15 2.656611383054413E-12 -5.110889685698486E-15
tp -4.577644776494177E-12 1.618944387117781E-11 1.450851398283185E-7 -3.041449600217287E-11 2.407745410263199E-8 1.506384300269994E-11
node -1.58449390104285E-15 1.744935511455902E-15 -3.041449600217287E-11 4.025878207337121E-10 -3.972954113478642E-10 -2.978141103178699E-11
peri -7.668038408787295E-13 2.656611383054413E-12 2.407745410263199E-8 -3.972954113478642E-10 4.394498450542926E-9 3.139563915082022E-11
i 2.328090460558839E-15 -5.110889685698486E-15 1.506384300269994E-11 -2.978141103178699E-11 3.139563915082022E-11 3.393549445664228E-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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1904-Mar-09 13:22 00:04 Jupiter 1.87416267557798 1.87416135199916 1.87416399916873 4.47341558307824 4.37121866823908 2416549.056848351 3.52161966313197 273.628617933196 27.4409325773685 -76.7861762814879 2884908.06475183 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 13:35:51 2021-Apr-13 13:35
1915-Sep-14 07:23 00:03 Jupiter 1.94273374919186 1.94273229704604 1.94273520134497 4.29634774145878 4.19363965979966 2420754.807590171 3.34646963721572 220.527680564265 28.0634756708345 -71.4868892330437 2826663.23281703 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 13:35:51 2021-Apr-13 13:35

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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