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118009 (1271 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2118009
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1943483985575142 4.9919e-08  
a 2.418417373826899 8.7387e-09 au
q 1.948401830179973 1.2167e-07 au
i .4716299820118636 4.7827e-06 deg
node 255.4617570658197 0.00066695 deg
peri 92.99796822489888 0.00066707 deg
M 209.6637117851008 1.3143e-05 deg
tp 2459774.162723829919
(2022-Jul-13.66272383)
5.1566e-05 TDB
period 1373.710785539427
3.76
7.4456e-06
2.038e-08
d
yr
n .2620638956828424 1.4204e-09 deg/d
Q 2.888432917473827 1.0437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      559  
   data-arc span      16960 days (46.43 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-02-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:55:17  

Additional Information
 Earth MOID = .940199 au 
 Jupiter MOID = 2.53538 au 
 T_jup = 3.489 
[ 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 16.33   n/a E2021B55  

118009 (1271 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1271 T-2 = 2002 GF92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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