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7081 Ludibunda (1987 QF7)
Classification: Main-belt Asteroid          SPK-ID: 2007081
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2385535727396165 4.5805e-08  
a 2.746605133689532 9.3229e-09 au
q 2.091392666142922 1.2652e-07 au
i 6.711616339440641 4.5394e-06 deg
node 230.713862529019 3.4526e-05 deg
peri 131.8092235546385 3.5315e-05 deg
M 56.21020245245174 6.6223e-06 deg
tp 2458740.899564439371
(2019-Sep-14.39956444)
3.0627e-05 TDB
period 1662.619110487654
4.55
8.4653e-06
2.318e-08
d
yr
n .2165258403016974 1.1024e-09 deg/d
Q 3.401817601236143 1.1547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2304  
   data-arc span      23999 days (65.71 yr)  
   first obs. used      1954-05-23  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:20:07  

Additional Information
 Earth MOID = 1.09655 au 
 Jupiter MOID = 2.11002 au 
 T_jup = 3.296 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO374930  
diameter diameter 10.145 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.143   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B K   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

7081 Ludibunda           Discovered 1987 Aug. 30 by P. Wild at Zimmerwald.
From the Latin ludibundus, meaning merry or joyful, Ludibunda is a frolicsome, playful woman, on the same pilgrimage as (6620) Peregrina, but of strongly contrasting temper.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1987 QF7 = 1981 GG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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