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46458 (4244 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2046458
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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 .1909256475805458 3.8286e-08  
a 2.455103425229076 1.2166e-08 au
q 1.986361213889998 9.8025e-08 au
i 5.942956391026481 7.1143e-06 deg
node 211.7686313480312 3.6807e-05 deg
peri 63.77465283072043 4.2721e-05 deg
M 297.1219906981973 2.2839e-05 deg
tp 2459445.914036150130
(2021-Aug-19.41403615)		 9.0288e-05 TDB
period 1405.086674897542
3.85		 1.0445e-05
2.86e-08		 d
yr
n .2562119522101731 1.9045e-09 deg/d
Q 2.923845636568153 1.4489e-08 au
   Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      22055 days (60.38 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:16  

Additional Information
 Earth MOID = .977052 au 
 Jupiter MOID = 2.20732 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457310.5 (2015-Oct-15.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .191738311432573 3.8138e-08  
q 1.983918959494051 9.7686e-08 au
tp 2456634.986626638311
(2013-Dec-08.48662664)		 7.8182e-05 TDB
node 211.8223137987802 3.684e-05 deg
peri 63.64651773877948 4.2709e-05 deg
i 5.940516547938357 7.1132e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      22055 days (60.38 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:16  

Additional Information
 Jupiter MOID = 2.20732 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.45452855731636E-15 -3.709380049118896E-15 -1.463317796709651E-12 6.182262190636959E-15 -4.11845487594656E-13 -1.166645532843155E-16
q -3.709380049118896E-15 9.542610150090597E-15 3.94966516952458E-12 -1.73343211680522E-14 1.117464168076505E-12 5.127759377918278E-16
tp -1.463317796709651E-12 3.94966516952458E-12 6.112433437706039E-9 -2.683232734868666E-11 1.695163154727104E-9 -1.190902929321569E-12
node 6.182262190636959E-15 -1.73343211680522E-14 -2.683232734868666E-11 1.357212572988743E-9 -1.356931737663211E-9 -4.771092329279378E-11
peri -4.11845487594656E-13 1.117464168076505E-12 1.695163154727104E-9 -1.356931737663211E-9 1.824079516018328E-9 4.715575721759612E-11
i -1.166645532843155E-16 5.127759377918278E-16 -1.190902929321569E-12 -4.771092329279378E-11 4.715575721759612E-11 5.059754931907424E-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 15.99   n/a E2021B10  
diameter diameter 2.745 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46458 (4244 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
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
1900-Nov-29 17:34 < 00:01 Eunom 0.0438521152630488 0.0438441386489941 0.0438600940866603 6.87642140187972 6.87642135532745 2415353.232127489 0.684657649004644 639.230785013519 78.3598126992234 -52.0820270379982 66320.7240011753 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 09:49:19 2021-Apr-13 09:49
1978-Apr-18 02:09 < 00:01 Iris 0.0493284739667648 0.0493267459718558 0.0493302020862224 7.55948175430879 7.55948173889238 2443616.589845408 0.442506689384478 193.87552810135 60.536313315924 -70.5565431479922 115626.119025 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 09:49:19 2021-Apr-13 09:49
2012-Sep-10 18:47 < 00:01 Eunom 0.0409365759643581 0.0409343314432005 0.0409388204931148 7.2396786202462 7.2396785728806 2456181.282778211 0.419014783237297 117.482295044434 70.4895929439207 22.3959602755075 58448.0899687719 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 09:49:19 2021-Apr-13 09:49

Alternate Designations
 4244 P-L = 1999 VJ116 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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