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49437 (1998 YY3)
Classification: Main-belt Asteroid          SPK-ID: 2049437
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105981261913157 5.8453e-08  
a 2.542540572997729 1.0216e-08 au
q 2.007086292559013 1.5276e-07 au
i 8.066156922049499 4.954e-06 deg
node 70.34235337461971 4.3463e-05 deg
peri 359.1213111521158 4.9872e-05 deg
M 154.0841871530354 2.3918e-05 deg
tp 2458566.694744955846
(2019-Mar-24.19474496)		 9.5821e-05 TDB
period 1480.813158259249
4.05		 8.9251e-06
2.444e-08		 d
yr
n .2431096711911944 1.4653e-09 deg/d
Q 3.077994853436445 1.2368e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1852  
   data-arc span      8821 days (24.15 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:32:38  

Additional Information
 Earth MOID = 1.02088 au 
 Jupiter MOID = 2.22977 au 
 T_jup = 3.400 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456991.5 (2014-Nov-30.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .209056154103105 5.7617e-08  
q 2.011976249866127 1.5014e-07 au
tp 2457085.910523439034
(2015-Mar-04.41052344)		 9.1737e-05 TDB
node 70.42173815106176 4.3486e-05 deg
peri 359.339871868042 5.001e-05 deg
i 8.06184064412534 4.947e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1852  
   data-arc span      8821 days (24.15 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:32:38  

Additional Information
 Jupiter MOID = 2.22977 au 
 T_jup = 3.400 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.319740187661193E-15 -8.641081358971044E-15 -4.599288212173304E-12 8.994839394013285E-15 -1.257905719063234E-12 -6.467536773806062E-15
q -8.641081358971044E-15 2.25410956274371E-14 1.209109048464762E-11 -2.080555379533934E-14 3.303152059404485E-12 1.678668426290206E-14
tp -4.599288212173304E-12 1.209109048464762E-11 8.415604950188008E-9 -1.22582210849654E-11 2.320993464981212E-9 1.073468598856459E-11
node 8.994839394013285E-15 -2.080555379533934E-14 -1.22582210849654E-11 1.890997659596037E-9 -1.875390427007957E-9 -1.572378201131467E-10
peri -1.257905719063234E-12 3.303152059404485E-12 2.320993464981212E-9 -1.875390427007957E-9 2.501019793540849E-9 1.586397596932154E-10
i -6.467536773806062E-15 1.678668426290206E-14 1.073468598856459E-11 -1.572378201131467E-10 1.586397596932154E-10 2.447287632225723E-11

[ 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 15.0   n/a MPO468364  
diameter diameter 2.527 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.6689 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.332   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49437 (1998 YY3)          Discovered 1998-Dec-17 by Kagawa, T. at Gekko
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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