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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105981272774253 5.8436e-08  
a 2.542540574255491 1.0213e-08 au
q 2.007086290790415 1.5272e-07 au
i 8.066156948268443 4.9535e-06 deg
node 70.34235329105158 4.3458e-05 deg
peri 359.1213108808366 4.9866e-05 deg
M 154.0841872245695 2.3917e-05 deg
tp 2458566.694744191296
(2019-Mar-24.19474419)
9.582e-05 TDB
period 1480.813159358058
4.05
8.9223e-06
2.443e-08
d
yr
n .2431096710107994 1.4648e-09 deg/d
Q 3.077994857720567 1.2364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1856  
   data-arc span      8821 days (24.15 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41958  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:17:01  

Additional Information
 Earth MOID = 1.02088 au 
 Jupiter MOID = 2.22977 au 
 T_jup = 3.400 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456993.5 (2014-Dec-02.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090558829402743 5.76e-08  
q 2.011975605565932 1.501e-07 au
tp 2457085.911044122534
(2015-Mar-04.41104412)
9.1735e-05 TDB
node 70.42172800607938 4.3481e-05 deg
peri 359.3400806895044 5.0004e-05 deg
i 8.061842662246546 4.9465e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1856  
   data-arc span      8821 days (24.15 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41958  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:17:01  

Additional Information
 Jupiter MOID = 2.22977 au 
 T_jup = 3.400 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.317717176507071E-15 -8.636201879800812E-15 -4.598553674663424E-12 8.848503799004831E-15 -1.257425217864561E-12 -6.47628043263551E-15
q -8.636201879800812E-15 2.252930928545E-14 1.20892645730413E-11 -2.042372024756404E-14 3.301953317153714E-12 1.681107694880087E-14
tp -4.598553674663424E-12 1.20892645730413E-11 8.415321459629385E-9 -1.202927044640707E-11 2.320644172811199E-9 1.075740010313121E-11
node 8.848503799004831E-15 -2.042372024756404E-14 -1.202927044640707E-11 1.890554039068347E-9 -1.874888355748666E-9 -1.572864751858853E-10
peri -1.257425217864561E-12 3.301953317153714E-12 2.320644172811199E-9 -1.874888355748666E-9 2.500405326446828E-9 1.586936618080041E-10
i -6.47628043263551E-15 1.681107694880087E-14 1.075740010313121E-11 -1.572864751858853E-10 1.586936618080041E-10 2.446754698073631E-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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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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