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JPL Small-Body Database Browser
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20395 (1998 MY29)
Classification: Main-belt Asteroid          SPK-ID: 2020395
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1046926359037575 3.7722e-08  
a 2.855141239608042 1.8157e-08 au
q 2.556228977355954 1.0893e-07 au
i 13.75116885680944 4.3356e-06 deg
node 272.3734479445707 1.88e-05 deg
peri 312.1184220008276 3.1581e-05 deg
M 250.0448603562842 2.7973e-05 deg
tp 2459538.711354935877
(2021-Nov-20.21135494)
0.00013858 TDB
period 1762.137617256798
4.82
1.6809e-05
4.602e-08
d
yr
n .2042973241558901 1.9488e-09 deg/d
Q 3.154053501860129 2.0058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1866  
   data-arc span      12472 days (34.15 yr)  
   first obs. used      1985-11-11  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 01:19:44  

Additional Information
 Earth MOID = 1.56604 au 
 Jupiter MOID = 1.97236 au 
 T_jup = 3.254 
[ 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 12.6   n/a MPO502320  
diameter diameter 16.265 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.201 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.056   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20395 (1998 MY29)          Discovered 1998-Jun-24 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 MY29 = 1985 VM5 = 1999 RN110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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