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101738 (1999 FY4)
Classification: Main-belt Asteroid          SPK-ID: 2101738
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1444287262713267 3.5579e-08  
a 2.245069466279498 8.8187e-09 au
q 1.920816942874103 8.2359e-08 au
i 3.51534574536173 4.0029e-06 deg
node 185.4246621066271 5.6491e-05 deg
peri 231.6253054267459 5.8062e-05 deg
M 293.9145308286016 1.3364e-05 deg
tp 2459426.051946167324
(2021-Jul-30.55194617)
4.6114e-05 TDB
period 1228.692201755287
3.36
7.2395e-06
1.982e-08
d
yr
n .2929944533591981 1.7263e-09 deg/d
Q 2.569321989684893 1.0092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      946  
   data-arc span      10364 days (28.38 yr)  
   first obs. used      1992-03-01  
   last obs. used      2020-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52727  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:20  

Additional Information
 Earth MOID = .934118 au 
 Jupiter MOID = 2.75239 au 
 T_jup = 3.615 
[ 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 16.17   n/a E2021B55  

101738 (1999 FY4)          Discovered 1999-Mar-17 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 FY4 = 1992 EL16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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