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480883 (2001 YE4)
Classification: Aten [NEO, PHA]          SPK-ID: 2480883
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 60 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5404147646637045 3.235e-08  
a .6768440653982436 4.4036e-10 au
q .3110675390820267 2.1914e-08 au
i 4.845330989775161 5.0927e-06 deg
node 305.4743630368923 4.3852e-05 deg
peri 318.86578247863 4.0967e-05 deg
M 247.2013823043256 9.9008e-06 deg
tp 2459264.228345223676
(2021-Feb-18.72834522)
5.6189e-06 TDB
period 203.3908282672421
0.56
1.9849e-07
5.434e-10
d
yr
n 1.769991317046921 1.7274e-09 deg/d
Q 1.04262059171446 6.7834e-10 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -6.961653842760153E-14 9.625E-16
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)      360  
   # delay obs. used      6  
   # Doppler obs. used      1  
   data-arc span      5498 days (15.05 yr)  
   first obs. used      2001-12-21  
   last obs. used      2017-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35603  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 16:58:25  

Additional Information
 Earth MOID = .0312446 au 
 Jupiter MOID = 4.0413 au 
 T_jup = 8.292 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 20.7   n/a MPO264922  

480883 (2001 YE4)          Discovered 2001-Dec-21 by LINEAR at Socorro
Reference: Last Updated: 2017-01-17

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