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4784 (1984 DF1)
Classification: Main-belt Asteroid          SPK-ID: 2004784
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137553382330348 7.42e-08  
a 2.679903862960206 2.2476e-08 AU
q 2.375050492597152 2.0607e-07 AU
i 3.541662744630593 7.5108e-06 deg
node 349.0286655360329 0.00010127 deg
peri 168.5042476101045 0.00010535 deg
M 330.2393108246203 2.9735e-05 deg
tp 2456932.970059762565
(2014-Oct-02.47005976)
0.00013277 JED
period 1602.423291795799
4.39
2.0159e-05
5.519e-08
d
yr
n .2246597399346063 2.8263e-09 deg/d
Q 2.984757233323261 2.5033e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1168  
   data-arc span      22344 days (61.17 yr)  
   first obs. used      1953-01-12  
   last obs. used      2014-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46915  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:29:48  

Additional Information
 Earth MOID = 1.38466 AU 
 T_jup = 3.365 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO267727  

4784 (1984 DF1)          Discovered 1984-Feb-28 by Debehogne, H. at La Silla (809)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1984 DF1 = 1982 VN7 = 1990 QV8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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