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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01428625317834107 4.2079e-08  
a 3.008830006915047 1.7208e-08 au
q 2.965845099665669 1.2716e-07 au
i 3.8670859735313 3.7082e-06 deg
node 228.3325274528432 7.0195e-05 deg
peri 87.55447467870658 0.00017089 deg
M 238.9431615446358 0.00015857 deg
tp 2459841.534983553063
(2022-Sep-19.03498355)
0.00084149 TDB
period 1906.316049747099
5.22
1.6353e-05
4.477e-08
d
yr
n .1888459156852608 1.62e-09 deg/d
Q 3.051814914164425 1.7453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1275  
   data-arc span      22094 days (60.49 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:05:30  

Additional Information
 Earth MOID = 1.95288 au 
 Jupiter MOID = 1.97402 au 
 T_jup = 3.247 
[ 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 14.26   n/a E2021B10  
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. 2020-October); 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 07:27 00:02 Jupiter 1.98274205498047 1.98274160462975 1.98274250533175 3.71371234822556 3.59684088370964 2429620.810657500 1.89791550911525 104.99346750988 15.2790638006217 -83.8505525762962 3769438.96649582 T 32 CATAB v2.0g-lin.ifort 2021-May-04 02:05:36 2021-May-04 02:05
2023-Dec-25 15:10 < 00:01 Jupiter 1.97624360642723 1.97624325314951 1.97624395970496 3.76579808312876 3.65020967169965 2460304.131858718 0.294518125280775 40.2090107851554 14.4193124125102 -89.4840295723088 4123742.58138948 T 32 CATAB v2.0g-lin.ifort 2021-May-04 02:05:36 2021-May-04 02:05
2070-Aug-02 17:33 00:01 Jupiter 1.97782648469789 1.97782609341241 1.97782687598337 3.73419630004852 3.61769311618082 2477326.231098200 1.45977979257199 85.5731204300599 15.4815317796016 -86.5665407904914 3843435.69822052 T 32 CATAB v2.0g-lin.ifort 2021-May-04 02:05:36 2021-May-04 02:05
2154-Aug-05 02:36 00:04 Jupiter 1.98056917981049 1.98056870091506 1.98056965870851 3.78052881277972 3.66566033450125 2508008.608173045 3.55032515754614 170.421373186151 14.5011747382187 85.0445366819128 4248657.87782572 T 32 CATAB v2.0g-lin.ifort 2021-May-04 02:05:36 2021-May-04 02:05

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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