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39401 (7572 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039401
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1250227252824603 3.7699e-08  
a 2.277938711601253 8.9695e-09 au
q 1.993144605850448 8.4034e-08 au
i 3.63161067967477 4.5956e-06 deg
node 137.2180571321841 6.9659e-05 deg
peri 150.2628351229155 7.3175e-05 deg
M 247.952852705922 2.5193e-05 deg
tp 2459591.349699789444
(2022-Jan-11.84969979)
8.8928e-05 TDB
period 1255.773978385228
3.44
7.417e-06
2.031e-08
d
yr
n .2866757921381012 1.6932e-09 deg/d
Q 2.562732817352058 1.0091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      923  
   data-arc span      22026 days (60.30 yr)  
   first obs. used      1960-09-27  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5579  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:14:30  

Additional Information
 Earth MOID = .975848 au 
 Jupiter MOID = 2.57343 au 
 T_jup = 3.595 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456498.5 (2013-Jul-25.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1248892546846486 3.7623e-08  
q 1.993821356837251 8.3849e-08 au
tp 2457080.217077067039
(2015-Feb-26.71707707)
8.3387e-05 TDB
node 137.2592113504149 6.9684e-05 deg
peri 150.2546009977364 7.3221e-05 deg
i 3.630703411005701 4.5949e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      923  
   data-arc span      22026 days (60.30 yr)  
   first obs. used      1960-09-27  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5579  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:14:30  

Additional Information
 Jupiter MOID = 2.57343 au 
 T_jup = 3.595 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.41547706358618E-15 -3.142012266239931E-15 1.210868220256837E-12 6.139675400838993E-15 2.879260478347163E-13 -5.735575889188175E-16
q -3.142012266239931E-15 7.030633177775985E-15 -2.559776131780674E-12 -1.381535425827252E-14 -6.125659941173215E-13 1.302399470706994E-15
tp 1.210868220256837E-12 -2.559776131780674E-12 6.953431250797499E-9 5.779170106010513E-12 1.889837629883352E-9 -3.238724384672677E-12
node 6.139675400838993E-15 -1.381535425827252E-14 5.779170106010513E-12 4.855819378129712E-9 -4.844091356352864E-9 1.059273953361956E-10
peri 2.879260478347163E-13 -6.125659941173215E-13 1.889837629883352E-9 -4.844091356352864E-9 5.361312637204323E-9 -1.066388300211225E-10
i -5.735575889188175E-16 1.302399470706994E-15 -3.238724384672677E-12 1.059273953361956E-10 -1.066388300211225E-10 2.111337206040765E-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 15.58   n/a E2021B10  

39401 (7572 P-L)          Discovered 1960-Sep-27 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 7572 P-L = 2000 DD21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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