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78300 (2002 PK55)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078300
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01169713173168418 4.2611e-08  
a 3.219448654557356 2.5795e-08 au
q 3.181790339541605 1.4636e-07 au
i 20.77074482504874 4.0119e-06 deg
node 321.2495969765422 1.3222e-05 deg
peri 91.41618351786086 0.00024753 deg
M 345.2414598305102 0.00024362 deg
tp 2459286.999098746641
(2021-Mar-13.49909875)
0.0014274 TDB
period 2109.942798622164
5.78
2.5359e-05
6.943e-08
d
yr
n .1706207392139197 2.0506e-09 deg/d
Q 3.257106969573107 2.6097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      8067 days (22.09 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:32  

Additional Information
 Earth MOID = 2.20357 au 
 Jupiter MOID = 1.81945 au 
 T_jup = 3.087 
[ show covariance matrix ]

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 13.78   n/a E2020-QM9  
diameter diameter 9.521 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78300 (2002 PK55)          Discovered 2002-Aug-09 by LINEAR at Socorro
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
1939-Jan-31 03:07 00:03 Jupiter 1.9626779551662 1.96267676704954 1.96267914328285 6.5053215959433 6.43863958254306 2429294.629913711 2.56625888318893 251.567906973574 59.9940505670694 89.0503255678789 4810230.03721508 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:34 2021-Feb-24 07:14
1950-Jun-08 17:05 00:02 Jupiter 1.89304431494064 1.89304381065288 1.89304481923088 6.6785440099524 6.61120801328869 2433441.212148892 2.04184689676247 332.074753336508 23.4137418267006 88.5711115685458 4949788.05675227 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:34 2021-Feb-24 07:14
1961-Oct-22 14:30 00:02 Jupiter 1.9353101145359 1.93530926825619 1.93531096083662 6.64766377305554 6.58149667305606 2437595.103861546 1.67255016343888 354.311357043431 16.8714807507284 83.7641271060244 5004026.14743759 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:34 2021-Feb-24 07:14
2164-Jul-12 03:40 00:05 Jupiter 1.99953874532848 1.9995359759554 1.99954151470656 6.34958896386649 6.28252036229389 2511637.652924682 5.08870232843165 291.686071388257 110.88000773595 71.4314118415417 4276782.86937006 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:34 2021-Feb-24 07:14
2175-Nov-15 10:05 00:05 Jupiter 1.90317934169299 1.9031782558242 1.90318042759662 6.60826030281116 6.54056503992387 2515780.919913368 4.96983031324815 535.218913342724 34.8696912911071 -85.5015649782468 5232725.35538207 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:34 2021-Feb-24 07:14
2187-Mar-31 12:41 00:05 Jupiter 1.9101426029009 1.91014134376623 1.91014386218357 6.63627656183215 6.56911700674107 2519935.028643276 5.17468852245497 873.826737366818 15.3563357889485 85.973869975228 5499954.09136102 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:34 2021-Feb-24 07:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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