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122P/de Vico
Classification: Halley-type Comet* [NEO]          SPK-ID: 1000156
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2450280.5 (1996-Jul-16.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.9627088867609727707019 1.7755e-08  
a 17.680816651897078628508 2.2796e-07 au
q 0.6593373359243723808020 3.1242e-07 au
i 85.382753114444753350653 6.0402e-05 deg
node 79.62450068849807 5.922e-05 deg
peri 12.99609193700053 6.0163e-05 deg
M 3.765031967057799 3.9081e-07 deg
tp 2449996.500173375464
(1995-Oct-06.00017338)		 2.9358e-05 TDB
period 27155.13134533326
74.35		 0.00052517
1.438e-06		 d
yr
n .01325716290677665 2.5639e-10 deg/d
Q 34.70229596786979 4.4742e-07 au
   Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      54902 days (150.31 yr)  
   first obs. used      1846-03-02  
   last obs. used      1996-06-25  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   norm. resid. RMS      1.1138  
   source      ORB  
   producer      M.S.W. Keesey  
   solution date      2001-Jul-02 16:09:03  

Additional Information
 Earth MOID = .316817 au 
 T_jup = 0.375 
[ 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
comet total magnitude M1 7.5   n/a MPC 26587  
comet total magnitude slope K1 10   n/a MPC 26587  

122P/de Vico          Discovered 1846-Feb-20 by de Vico, Francesco at Collegio Romano Obseratory, Rome, Italy
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year (est.)		  New-Style 
Desig		 Roman
 Numeral 		 Year/
 Letter 
 1995.8   122P/1995 S1       
 1847.1   122P/1846 D1   1846 IV   
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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