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17887 (1999 DE1)
Classification: Main-belt Asteroid          SPK-ID: 2017887
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07618039881018968 2.9312e-08  
a 2.190917542658211 6.4908e-09 au
q 2.024012570498267 6.3866e-08 au
i 3.459819806504964 3.0745e-06 deg
node 183.4726651040147 5.3098e-05 deg
peri 28.71152353187964 5.816e-05 deg
M 210.4735634019922 2.5877e-05 deg
tp 2459692.486242755819
(2022-Apr-22.98624276)
8.6182e-05 TDB
period 1184.50657570512
3.24
5.2638e-06
1.441e-08
d
yr
n .3039240198271565 1.3506e-09 deg/d
Q 2.357822514818154 6.9852e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1671  
   data-arc span      9095 days (24.90 yr)  
   first obs. used      1996-03-20  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49992  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:17:14  

Additional Information
 Earth MOID = 1.01782 au 
 Jupiter MOID = 2.60165 au 
 T_jup = 3.667 
[ 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 15.19   n/a MPCxxxxx  
diameter diameter 2.297 km 0.419 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.367   0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17887 (1999 DE1)          Discovered 1999-Feb-17 by ODAS at Caussols
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 DE1 = 2000 QX71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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