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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 173 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5866777700383894 2.242e-08  
a 1.442268692386096 3.71e-09 au
q .5961217121408374 3.2098e-08 au
i 5.520250778461584 4.847e-06 deg
node 311.823893085161 2.1629e-05 deg
peri 291.8180188560083 2.1016e-05 deg
M 134.1212076856032 9.2682e-06 deg
tp 2458364.798337440171
(2018-Sep-03.29833744)
1.5383e-05 TDB
period 632.6560876222005
1.73
2.4411e-06
6.683e-09
d
yr
n .569029536020175 2.1956e-09 deg/d
Q 2.288415672631355 5.8866e-09 au
  Orbit Determination Parameters
   # obs. used (total)      938  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      30255 days (82.83 yr)  
   first obs. used      1937-02-06  
   last obs. used      2019-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46067  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:44:30  

Additional Information
 Earth MOID = .0285148 au 
 Jupiter MOID = 2.76766 au 
 T_jup = 4.457 
[ 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-January); 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

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