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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3044425108420494 5.0558e-08  
a 2.040225318233784 6.0632e-09 au
q 1.419093999667171 1.0216e-07 au
i 4.218101728496355 4.4038e-06 deg
node 309.6645689254438 4.1245e-05 deg
peri 210.8775818065571 4.1738e-05 deg
M 147.7782919880262 5.7538e-06 deg
tp 2458563.558024593459
(2019-Mar-21.05802459)
1.7531e-05 TDB
period 1064.426371629061
2.91
4.7449e-06
1.299e-08
d
yr
n .3382103352522491 1.5077e-09 deg/d
Q 2.661356636800396 7.9091e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1270  
   data-arc span      11806 days (32.32 yr)  
   first obs. used      1987-02-28  
   last obs. used      2019-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:59:29  

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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