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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105871787574072 5.8373e-08  
a 2.542796656132166 1.02e-08 au
q 2.007316282163524 1.5253e-07 au
i 8.065909044983016 4.9537e-06 deg
node 70.3439407069518 4.3463e-05 deg
peri 359.1577667217875 4.9875e-05 deg
M 105.4152907575607 2.3725e-05 deg
tp 2458566.822406313259
(2019-Mar-24.32240631)
9.5881e-05 TDB
period 1481.03688378841
4.05
8.9111e-06
2.44e-08
d
yr
n .2430729470282604 1.4625e-09 deg/d
Q 3.078277030100808 1.2348e-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 = 1.02165 au 
 Jupiter MOID = 2.22879 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 = 2.22879 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2122-Mar-13 02:25 00:04 Cybel 0.0316152577034814 0.0316092186611569 0.0316213048778943 4.70241786444255 4.70241782352609 2496175.600412423 3.96707253431125 866.857392640393 54.7916695644345 -69.9782659891829 81093.5595373301 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 23:32:42 2020-Nov-12 23:32
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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