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JPL Small-Body Database Browser
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49672 (1999 RM103)
Classification: Main-belt Asteroid          SPK-ID: 2049672
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306983643524992 4.4816e-08  
a 2.342901257090593 8.2151e-09 au
q 2.036687894949438 1.0565e-07 au
i 6.077764175414541 3.7554e-06 deg
node 287.210512889141 4.4847e-05 deg
peri 86.52170757335175 4.6992e-05 deg
M 258.4584598854453 1.4401e-05 deg
tp 2459369.962743137843
(2021-Jun-04.46274314)
5.3005e-05 TDB
period 1309.87364756898
3.59
6.8894e-06
1.886e-08
d
yr
n .2748356688205241 1.4455e-09 deg/d
Q 2.649114619231748 9.2888e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1366  
   data-arc span      8120 days (22.23 yr)  
   first obs. used      1997-01-14  
   last obs. used      2019-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51106  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:51:45  

Additional Information
 Earth MOID = 1.04795 au 
 Jupiter MOID = 2.85577 au 
 T_jup = 3.544 
[ 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 14.9   n/a MPO436130  
diameter diameter 2.151 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.648 h n/a LCDB (Rev. 2019-August); 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 0.552   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49672 (1999 RM103)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RM103 = 2000 YA68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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