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4220 Flood (1988 DN)
Classification: Main-belt Asteroid          SPK-ID: 2004220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1945680414982357 1.0422e-08  
a 2.802732972510718 9.1543e-09 au
q 2.257410707206779 2.8948e-08 au
i 6.997814112026187 2.883e-07 deg
node 220.9638521358276 4.3087e-06 deg
peri 232.9361665413707 6.2611e-06 deg
M 40.41452551145453 5.1729e-06 deg
tp 2459008.099589379590
(2020-Jun-07.59958938)
2.4388e-05 TDB
period 1713.842905410734
4.69
8.3966e-06
2.299e-08
d
yr
n .2100542581023339 1.0291e-09 deg/d
Q 3.348055237814656 1.0935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2406  
   data-arc span      24585 days (67.31 yr)  
   first obs. used      1953-11-30  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46551  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:29:01  

Additional Information
 Earth MOID = 1.2818 au 
 Jupiter MOID = 1.90844 au 
 T_jup = 3.286 
[ 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 13.56   n/a MPCxxxxx  
diameter diameter 11.147 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.068   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4220 Flood (1988 DN)          Discovered 1988-Feb-22 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 DN = 1986 RB17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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