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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1909256484357151 3.829e-08  
a 2.455103422957592 1.2227e-08 au
q 1.98636120995267 9.8052e-08 au
i 5.942956397238025 7.1143e-06 deg
node 211.7686311729251 3.6871e-05 deg
peri 63.77465289102691 4.2819e-05 deg
M 297.1219911446799 2.2955e-05 deg
tp 2459445.914034066911
(2021-Aug-19.41403407)		 9.0755e-05 TDB
period 1405.086672947544
3.85		 1.0497e-05
2.874e-08		 d
yr
n .2562119525657475 1.914e-09 deg/d
Q 2.923845635962514 1.4562e-08 au
   Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      21732 days (59.50 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53749  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:47:10  

Additional Information
 Earth MOID = .977051 au 
 Jupiter MOID = 2.20732 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457299.5 (2015-Oct-04.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917464105653996 3.8139e-08  
q 1.983887254751488 9.77e-08 au
tp 2456635.003714500552
(2013-Dec-08.50371450)		 7.8503e-05 TDB
node 211.8224422122582 3.6904e-05 deg
peri 63.64827301300904 4.2807e-05 deg
i 5.94052495655277 7.1132e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      21732 days (59.50 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53749  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:47:10  

Additional Information
 Jupiter MOID = 2.20732 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.454572595906183E-15 -3.709802881234882E-15 -1.466554884525516E-12 6.439837692190006E-15 -4.129055019267263E-13 -1.227561070069673E-16
q -3.709802881234882E-15 9.54530629868259E-15 3.963981545555535E-12 -1.803822268612362E-14 1.121749084381451E-12 5.330548184844828E-16
tp -1.466554884525516E-12 3.963981545555535E-12 6.162680890084452E-9 -2.758054834552848E-11 1.708766489525084E-9 -1.193443560629562E-12
node 6.439837692190006E-15 -1.803822268612362E-14 -2.758054834552848E-11 1.361936021371177E-9 -1.361837234022143E-9 -4.776836989494275E-11
peri -4.129055019267263E-13 1.121749084381451E-12 1.708766489525084E-9 -1.361837234022143E-9 1.832450977605493E-9 4.721323143110347E-11
i -1.227561070069673E-16 5.330548184844828E-16 -1.193443560629562E-12 -4.776836989494275E-11 4.721323143110347E-11 5.059830528459613E-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 20 CATAB v2.0f-lin.ifort 2020-Nov-12 23:47:12 2020-Nov-12 23:47
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 20 CATAB v2.0f-lin.ifort 2020-Nov-12 23:47:12 2020-Nov-12 23:47
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 20 CATAB v2.0f-lin.ifort 2020-Nov-12 23:47:12 2020-Nov-12 23:47

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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