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100006 (1987 DA7)
Classification: Mars-crossing Asteroid          SPK-ID: 2100006
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3044425120361932 5.0549e-08  
a 2.040225318341912 5.8962e-09 au
q 1.419093997306059 1.0215e-07 au
i 4.218101777189234 4.3685e-06 deg
node 309.6645705694686 4.0165e-05 deg
peri 210.87757991 4.0597e-05 deg
M 147.7782922326954 5.6218e-06 deg
tp 2458563.558023835300
(2019-Mar-21.05802384)		 1.705e-05 TDB
period 1064.426371713681
2.91		 4.6142e-06
1.263e-08		 d
yr
n .3382103352253623 1.4661e-09 deg/d
Q 2.661356639377766 7.6912e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      12204 days (33.41 yr)  
   first obs. used      1987-02-28  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48002  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:01:27  

Additional Information
 Earth MOID = .430334 au 
 Jupiter MOID = 2.33408 au 
 T_jup = 3.740 
[ 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 15.8   n/a MPO474876  
rotation period rot_per 3.9422 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]

100006 (1987 DA7)          Discovered 1987-Feb-28 by Debehogne, H. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1987 DA7 = 2000 VJ39 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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