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85554 (1997 YF14)
Classification: Main-belt Asteroid          SPK-ID: 2085554
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1617641720352969 4.8862e-08  
a 2.538273954998292 1.1009e-08 au
q 2.127672170269235 1.2727e-07 au
i 5.121873896413339 5.3413e-06 deg
node 294.1024134006988 3.8536e-05 deg
peri 157.0746964873722 4.1195e-05 deg
M 311.1405743050352 1.7602e-05 deg
tp 2459596.971215809835
(2022-Jan-17.47121581)
7.3135e-05 TDB
period 1477.087310483426
4.04
9.6096e-06
2.631e-08
d
yr
n .2437228980608993 1.5856e-09 deg/d
Q 2.948875739727349 1.279e-08 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      10017 days (27.43 yr)  
   first obs. used      1994-02-11  
   last obs. used      2021-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48488  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:03:39  

Additional Information
 Earth MOID = 1.14549 au 
 Jupiter MOID = 2.23825 au 
 T_jup = 3.423 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.41   n/a E2021B10  
diameter diameter 2.141 km 0.464 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85554 (1997 YF14)          Discovered 1997-Dec-31 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 YF14 = 1994 CY4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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