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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1447237474669952 3.5626e-08  
a 2.245782007001285 8.7179e-09 au
q 1.92076401895411 8.2539e-08 au
i 3.513917139831695 4.0017e-06 deg
node 185.4695611643277 5.6526e-05 deg
peri 231.4357089335797 5.8081e-05 deg
M 235.5191433142629 1.3181e-05 deg
tp 2459425.559661058351
(2021-Jul-30.05966106)
4.5955e-05 TDB
period 1229.277192133427
3.37
7.1579e-06
1.96e-08
d
yr
n .2928550226944464 1.7053e-09 deg/d
Q 2.570799995048461 9.9796e-09 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:46  

Additional Information
 Earth MOID = .934782 au 
 Jupiter MOID = 2.75146 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 16.1   n/a MPO432544  

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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