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JPL Small-Body Database Browser
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(2011 PU1)
Classification: Apollo [NEO]          SPK-ID: 3574830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2460283762628102 1.2514e-08  
a 1.304534566328612 1.256e-08 au
q .9835820451960741 2.4393e-08 au
i 4.364167674072291 2.3865e-06 deg
node 301.8298513088593 7.9508e-06 deg
peri 326.7378243383702 1.0424e-05 deg
M 254.5825203525608 1.753e-05 deg
tp 2459555.864631017065
(2021-Dec-07.36463102)
2.8747e-05 TDB
period 544.229167288171
1.49
7.8597e-06
2.152e-08
d
yr
n .6614860460232902 9.5531e-09 deg/d
Q 1.62548708746115 1.565e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -3.030409561784477E-13 4.996E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      2090 days (5.72 yr)  
   first obs. used      2011-08-06  
   last obs. used      2017-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3882  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:13:02  

Additional Information
 Earth MOID = .00033853 au 
 Jupiter MOID = 3.46007 au 
 T_jup = 4.956 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.6   n/a MPO307035  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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