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15647 (4556 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2015647
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402023427639398 4.1625e-08  
a 2.994813265240778 1.4165e-08 au
q 2.574933429313496 1.2892e-07 au
i 3.147297768231025 4.2443e-06 deg
node 43.1859413533527 6.4225e-05 deg
peri 332.4983954060928 6.5254e-05 deg
M 243.4448223785467 1.326e-05 deg
tp 2460009.389412130012
(2023-Mar-05.88941213)
7.2087e-05 TDB
period 1893.010614109287
5.18
1.3431e-05
3.677e-08
d
yr
n .1901732601586018 1.3492e-09 deg/d
Q 3.414693101168059 1.6151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1800  
   data-arc span      22228 days (60.86 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48187  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:02:23  

Additional Information
 Earth MOID = 1.57598 au 
 Jupiter MOID = 2.04961 au 
 T_jup = 3.238 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457243.5 (2015-Aug-09.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389012972569915 4.1552e-08  
q 2.579971980888074 1.2853e-07 au
tp 2458117.857657935801
(2017-Dec-30.35765794)
6.6226e-05 TDB
node 43.20879192833964 6.4219e-05 deg
peri 332.9343692559266 6.5273e-05 deg
i 3.147088713233746 4.2431e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1800  
   data-arc span      22228 days (60.86 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48187  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:02:23  

Additional Information
 Jupiter MOID = 2.04961 au 
 T_jup = 3.238 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.726547670628913E-15 -5.318954241803487E-15 -3.609861829941899E-13 -5.632756514099213E-15 -5.240563054716526E-14 -2.395998772354909E-16
q -5.318954241803487E-15 1.652068679137046E-14 1.404991540031824E-12 1.694988849259699E-14 2.014217865834426E-13 9.70110211039541E-16
tp -3.609861829941899E-13 1.404991540031824E-12 4.385853571485213E-9 3.800368014277085E-12 7.857425788152883E-10 -1.544172911865436E-13
node -5.632756514099213E-15 1.694988849259699E-14 3.800368014277085E-12 4.124020594992859E-9 -4.116874191262188E-9 -7.499837658107345E-11
peri -5.240563054716526E-14 2.014217865834426E-13 7.857425788152883E-10 -4.116874191262188E-9 4.2605551493127E-9 7.486153822061457E-11
i -2.395998772354909E-16 9.70110211039541E-16 -1.544172911865436E-13 -7.499837658107345E-11 7.486153822061457E-11 1.800411907852631E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.73   n/a MPO636299  
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

Alternate Designations
 4556 P-L = 1991 RT21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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