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101812 (1999 JD7)
Classification: Main-belt Asteroid          SPK-ID: 2101812
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06514532168494484 5.4318e-08  
a 2.653958239593113 1.3935e-08 au
q 2.48106527633641 1.4716e-07 au
i 12.96181802173872 4.147e-06 deg
node 81.08890254569503 1.9794e-05 deg
peri 104.3492357466046 3.8921e-05 deg
M 32.13508653109869 3.1132e-05 deg
tp 2459059.533301943443
(2020-Jul-29.03330194)
0.00013687 TDB
period 1579.208795695923
4.32
1.2438e-05
3.405e-08
d
yr
n .2279622561507808 1.7955e-09 deg/d
Q 2.826851202849817 1.4843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      7675 days (21.01 yr)  
   first obs. used      1999-05-08  
   last obs. used      2020-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56454  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:44  

Additional Information
 Earth MOID = 1.51435 au 
 Jupiter MOID = 2.23024 au 
 T_jup = 3.350 
[ 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 15.36   n/a E2021B55  
rotation period rot_per 7.420 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Galad, A. (2010) Astron. Astrophys. 514, A55.]

101812 (1999 JD7)          Discovered 1999-May-08 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 JD7 = 2001 XL5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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