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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3048357320758674 5.048e-08  
a 2.039607284305652 5.4453e-09 au
q 1.417862104647066 1.0202e-07 au
i 4.218413780227988 4.1228e-06 deg
node 309.6662881018086 3.7572e-05 deg
peri 210.8667872967402 3.7833e-05 deg
M 215.4525558141339 5.2719e-06 deg
tp 2459627.695013545555
(2022-Feb-17.19501355)		 1.5679e-05 TDB
period 1063.942747259155
2.91		 4.2607e-06
1.167e-08		 d
yr
n .3383640716828076 1.355e-09 deg/d
Q 2.661352463964237 7.1052e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1385  
   data-arc span      12335 days (33.77 yr)  
   first obs. used      1987-02-28  
   last obs. used      2020-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4725  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:24:03  

Additional Information
 Earth MOID = .428881 au 
 Jupiter MOID = 2.33327 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 15.85   n/a E2021B55  
rotation period rot_per 3.9422 h n/a LCDB (Rev. 2020-October); 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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