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4450 Pan (1987 SY)
Classification: Apollo [NEO, PHA]          SPK-ID: 2004450
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 236 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5866724004690648 2.0036e-08  
a 1.442495036894798 3.0539e-09 au
q .5962230109350147 2.8377e-08 au
i 5.520539441397539 3.6308e-06 deg
node 311.8067224742356 2.0599e-05 deg
peri 291.836413902788 1.994e-05 deg
M 1.709168508958802 8.1896e-06 deg
tp 2458997.495637725727
(2020-May-27.99563773)
1.4386e-05 TDB
period 632.8050236528384
1.73
2.0096e-06
5.502e-09
d
yr
n .5688956100915828 1.8066e-09 deg/d
Q 2.288767062854581 4.8456e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1298  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      30599 days (83.78 yr)  
   first obs. used      1937-02-06  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43529  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-28 05:19:46  

Additional Information
 Earth MOID = .028548 au 
 Jupiter MOID = 2.76753 au 
 T_jup = 4.456 
[ 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 17.1   n/a MPO267725  
rotation period rot_per 56.48 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 113-124.]

4450 Pan (1987 SY)          Discovered 1987-Sep-25 by Shoemaker, C. and E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1987 SY = 1937 CA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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