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JPL Small-Body Database Browser
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15645 (4163 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2015645
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01412434922752517 4.4792e-08  
a 3.009532750214613 1.7875e-08 au
q 2.967025058638908 1.3387e-07 au
i 3.866744188883552 3.7215e-06 deg
node 228.3400773099924 7.3322e-05 deg
peri 86.83265644906041 0.00017683 deg
M 201.8989265836221 0.00016384 deg
tp 2459837.989470092632
(2022-Sep-15.48947009)
0.00087055 TDB
period 1906.98394842217
5.22
1.699e-05
4.652e-08
d
yr
n .1887797746267673 1.6819e-09 deg/d
Q 3.052040441790318 1.8127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1243  
   data-arc span      21759 days (59.57 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:13:33  

Additional Information
 Earth MOID = 1.95593 au 
 Jupiter MOID = 1.97381 au 
 T_jup = 3.246 
[ 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 14.3   n/a MPO467863  
diameter diameter 4.010 km 1.296 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.638 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.252   0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15645 (4163 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000621/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
1939-Dec-23 07:28 00:02 Jupiter 1.98274206630694 1.98274158541169 1.98274254720285 3.71371212269634 3.59684065087469 2429620.810873105 1.96427444073729 108.972825226133 15.7894826647694 -83.2854454579132 3633799.88625758 T 28 CATAB v2.0f-lin.ifort 2020-May-20 04:13:38 2020-May-20 04:13
2023-Dec-25 15:10 < 00:01 Jupiter 1.97624362583603 1.97624326691722 1.97624398475485 3.76579802460813 3.6502096118304 2460304.131875472 0.300515930323515 41.8378182681631 14.6392445631331 -89.4436077151674 4058396.84649633 T 28 CATAB v2.0f-lin.ifort 2020-May-20 04:13:38 2020-May-20 04:13
2070-Aug-02 17:33 00:02 Jupiter 1.97782650232377 1.9778260999508 1.97782690469675 3.7341960400338 3.61769284819366 2477326.231060358 1.51168265616334 88.5354303684427 16.1070178456173 -87.1299769194125 3722657.80390689 T 28 CATAB v2.0f-lin.ifort 2020-May-20 04:13:38 2020-May-20 04:13
2154-Aug-05 02:35 00:04 Jupiter 1.98056911253388 1.98056861708042 1.98056960799014 3.78052851582086 3.66566002362924 2508008.607692339 3.67437392256676 176.227137031368 14.6708165318489 84.9276470736777 4209282.20887472 T 28 CATAB v2.0f-lin.ifort 2020-May-20 04:13:38 2020-May-20 04:13

Alternate Designations
 4163 P-L = 2000 GF106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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