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101769 (1999 FF52)
Classification: Main-belt Asteroid          SPK-ID: 2101769
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .184824292580696 4.5838e-08  
a 2.575549579727126 1.1398e-08 au
q 2.099525450647551 1.136e-07 au
i 14.59361220922602 4.2541e-06 deg
node 353.9022339547101 1.4931e-05 deg
peri 36.72673125562832 1.9306e-05 deg
M 220.0704426043626 1.5182e-05 deg
tp 2459787.327230726583
(2022-Jul-26.82723073)
6.6463e-05 TDB
period 1509.743952553632
4.13
1.0022e-05
2.744e-08
d
yr
n .2384510296537924 1.5829e-09 deg/d
Q 3.051573708806701 1.3504e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1221  
   data-arc span      8244 days (22.57 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:30  

Additional Information
 Earth MOID = 1.11816 au 
 Jupiter MOID = 2.48107 au 
 T_jup = 3.359 
[ 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 14.2   n/a MPO469024  
rotation period rot_per 8.7 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm]

101769 (1999 FF52)          Discovered 1999-Mar-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 FF52 = 1999 HD = 2001 QR22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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