Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1909244235822271 3.8326e-08  
a 2.455542360768574 1.2225e-08 au
q 1.986719350957093 9.8165e-08 au
i 5.94241360313269 7.1136e-06 deg
node 211.7749427547049 3.6874e-05 deg
peri 63.71385425534589 4.2818e-05 deg
M 245.9456995622624 2.2708e-05 deg
tp 2459445.775435470611
(2021-Aug-19.27543547)
9.0742e-05 TDB
period 1405.463504262405
3.85
1.0495e-05
2.873e-08
d
yr
n .2561432573013911 1.9128e-09 deg/d
Q 2.924365370580055 1.4558e-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 = .979202 au 
 Jupiter MOID = 2.20749 au 
 T_jup = 3.460 
[ 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 16.0   n/a MPO452805  
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-25 01:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin