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JPL Small-Body Database Browser
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18198 (2056 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2018198
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208951827048357 7.6571e-08  
a 2.925211697693073 2.0283e-08 au
q 2.571567695050146 2.2398e-07 au
i 12.34393094199155 7.5388e-06 deg
node 205.3154095234293 2.3894e-05 deg
peri 350.0101222633169 3.1172e-05 deg
M 139.8034229537777 2.1539e-05 deg
tp 2458290.841051959721
(2018-Jun-21.34105196)
0.00010815 TDB
period 1827.403191543939
5.00
1.9006e-05
5.204e-08
d
yr
n .1970008598353397 2.0489e-09 deg/d
Q 3.278855700335999 2.2735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      980  
   data-arc span      21525 days (58.93 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52283  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:21:09  

Additional Information
 Earth MOID = 1.57069 au 
 Jupiter MOID = 1.68755 au 
 T_jup = 3.233 
[ 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 13.8   n/a MPO350947  
diameter diameter 9.669 km 0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18198 (2056 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/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
1915-Mar-16 14:43 00:03 Jupiter 1.94887145026367 1.94886945137975 1.94887344914981 2.90776873292731 2.75424670154917 2420573.113036671 3.40020117402692 167.890817950508 68.457669353849 -55.2173135714189 1485817.24294554 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 22:21:24 2020-Feb-22 22:21
1941-Jun-09 06:32 00:02 Jupiter 1.95400405946775 1.95400229988387 1.95400581905373 3.8686550264099 3.75493420149729 2430154.772080829 2.31736418272179 161.248428484687 56.2467362621343 64.5508393516774 2943471.88123744 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 22:21:24 2020-Feb-22 22:21
1976-Jan-30 10:17 00:01 Jupiter 1.70572226190729 1.70572155384452 1.70572296997093 3.73873913208228 3.60347279900326 2442807.928588117 1.14694112087438 149.432235457517 30.7587485097706 85.6023026678717 2082323.52413645 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 22:21:24 2020-Feb-22 22:21
2010-Sep-27 10:49 < 00:01 Jupiter 1.77044393180794 1.77044322767973 1.77044463593624 3.35729653112515 3.21163391365585 2455466.950467233 0.256896105639491 77.6678924689204 29.1142137771508 77.8710699050964 1564831.27085019 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 22:21:24 2020-Feb-22 22:21
2071-Jul-21 07:04 00:02 Jupiter 1.82044283273336 1.82044178630795 1.82044387916218 3.77679899106496 3.65152612838072 2477678.794336651 1.73581507638486 178.948122157744 35.7503696844524 78.0946862839319 2465461.98542811 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 22:21:24 2020-Feb-22 22:21
2106-Mar-21 07:09 00:03 Jupiter 1.68998489190879 1.68998412593762 1.68998565788437 3.65228155087948 3.51237214085937 2490339.798146627 2.67868246759126 315.710063394452 31.7829137574018 -86.2910811402955 1804405.04988569 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 22:21:24 2020-Feb-22 22:21
2140-Nov-05 11:55 00:04 Jupiter 1.88069218363082 1.8806895184174 1.88069484885247 3.23550674703401 3.0931776169869 2502987.996763608 4.19354947948593 258.736606840239 59.4255952019966 -59.1986782215745 1606649.20000701 T 20 CATAB v2.0f-lin.ifort 2020-Feb-22 22:21:24 2020-Feb-22 22:21

Alternate Designations
 2056 P-L = 1998 FM99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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