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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
15647 (4556 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2015647
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398114061738674 5.0404e-08  
a 2.995650260188842 1.537e-08 au
q 2.576824184906728 1.5351e-07 au
i 3.146835960020067 4.8544e-06 deg
node 43.18821266155786 8.3911e-05 deg
peri 332.5246135307938 8.5061e-05 deg
M 168.0971483487787 1.4097e-05 deg
tp 2458116.213622406408
(2017-Dec-28.71362241)
7.2436e-05 TDB
period 1893.804261766382
5.18
1.4575e-05
3.99e-08
d
yr
n .1900935631353063 1.463e-09 deg/d
Q 3.414476335470956 1.7519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1476  
   data-arc span      21682 days (59.36 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50737  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:23:33  

Additional Information
 Earth MOID = 1.57866 au 
 Jupiter MOID = 2.04777 au 
 T_jup = 3.237 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456432.5 (2013-May-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361394295808266 5.0297e-08  
q 2.59212418388809 1.5246e-07 au
tp 2456224.292232543579
(2012-Oct-23.79223254)
7.3636e-05 TDB
node 43.40838767312954 8.3689e-05 deg
peri 333.3412002739107 8.491e-05 deg
i 3.149331996146967 4.8519e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1476  
   data-arc span      21682 days (59.36 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50737  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:23:33  

Additional Information
 Jupiter MOID = 2.04777 au 
 T_jup = 3.237 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.529758111735615E-15 -7.639205550541675E-15 -7.939707624693575E-13 -1.290617107652972E-14 -1.929757885855427E-13 -3.086580063556108E-16
q -7.639205550541675E-15 2.32428935921186E-14 2.328009995113046E-12 4.179819296045852E-14 5.702977027119757E-13 8.726181051926292E-16
tp -7.939707624693575E-13 2.328009995113046E-12 5.422290474230625E-9 1.764189196096572E-11 1.086476737769486E-9 -6.827530113187447E-13
node -1.290617107652972E-14 4.179819296045852E-14 1.764189196096572E-11 7.003910231788939E-9 -6.988968506413358E-9 -1.500764028585121E-10
peri -1.929757885855427E-13 5.702977027119757E-13 1.086476737769486E-9 -6.988968506413358E-9 7.209658302991144E-9 1.497263042311928E-10
i -3.086580063556108E-16 8.726181051926292E-16 -6.827530113187447E-13 -1.500764028585121E-10 1.497263042311928E-10 2.354105121919836E-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 13.7   n/a MPO337391  
diameter diameter 4.807 km 1.352 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.366   0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15647 (4556 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

[ show close-approach data ]
Alternate Designations
 4556 P-L = 1991 RT21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-09 20:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin