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22557 (1998 FF140)
Classification: Main-belt Asteroid          SPK-ID: 2022557
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2414057795210599 2.7888e-08  
a 2.320989087479081 9.9552e-09 au
q 1.76068890755632 6.2272e-08 au
i 6.227461415089461 3.9706e-06 deg
node 324.132159102297 3.1673e-05 deg
peri 325.0690397937601 3.3176e-05 deg
M 67.43123474170561 9.2175e-06 deg
tp 2458958.582834054420
(2020-Apr-19.08283405)
3.3281e-05 TDB
period 1291.540635048528
3.54
8.3095e-06
2.275e-08
d
yr
n .2787368745749711 1.7933e-09 deg/d
Q 2.881289267401842 1.2358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1280  
   data-arc span      14373 days (39.35 yr)  
   first obs. used      1981-08-30  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49766  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:35  

Additional Information
 Earth MOID = .746913 au 
 Jupiter MOID = 2.3268 au 
 T_jup = 3.530 
[ 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 15.36   n/a E2021B10  

22557 (1998 FF140)          Discovered 1998-Mar-29 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FF140 = 1981 QF4 = 1999 UC43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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