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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306983604552603 4.4792e-08  
a 2.342901255415256 8.1772e-09 au
q 2.03668790262391 1.0558e-07 au
i 6.077764836365336 3.7158e-06 deg
node 287.2105254840561 4.484e-05 deg
peri 86.52171406642897 4.6946e-05 deg
M 258.4584455443372 1.4291e-05 deg
tp 2459369.962794922221
(2021-Jun-04.46279492)
5.2606e-05 TDB
period 1309.873646164004
3.59
6.8576e-06
1.878e-08
d
yr
n .274835669115314 1.4389e-09 deg/d
Q 2.649114608206601 9.246e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      8192 days (22.43 yr)  
   first obs. used      1997-01-14  
   last obs. used      2019-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:32:33  

Additional Information
 Earth MOID = 1.04795 au 
 Jupiter MOID = 2.85577 au 
 T_jup = 3.544 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456783.5 (2014-May-06.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1296374922890576 4.457e-08  
q 2.038669772136312 1.048e-07 au
tp 2456750.620035179061
(2014-Apr-03.12003518)
5.0781e-05 TDB
node 287.293982664117 4.4782e-05 deg
peri 86.43579750923207 4.696e-05 deg
i 6.081954212107203 3.718e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      8192 days (22.43 yr)  
   first obs. used      1997-01-14  
   last obs. used      2019-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:32:33  

Additional Information
 Jupiter MOID = 2.85577 au 
 T_jup = 3.544 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.986500178029651E-15 -4.65977616708441E-15 -5.95171344560139E-13 9.172755498068398E-15 -1.956151835390804E-13 -2.467901832663489E-15
q -4.65977616708441E-15 1.098226534569739E-14 1.412658809429264E-12 -2.01919838259971E-14 4.614393054596709E-13 5.998960257483205E-15
tp -5.95171344560139E-13 1.412658809429264E-12 2.57868598478492E-9 -3.07501465665874E-12 7.435114625804653E-10 1.333556894507812E-12
node 9.172755498068398E-15 -2.01919838259971E-14 -3.07501465665874E-12 2.005470537368066E-9 -1.99468587083464E-9 4.320391024442426E-11
peri -1.956151835390804E-13 4.614393054596709E-13 7.435114625804653E-10 -1.99468587083464E-9 2.205275596726596E-9 -4.256656138907043E-11
i -2.467901832663489E-15 5.998960257483205E-15 1.333556894507812E-12 4.320391024442426E-11 -4.256656138907043E-11 1.382366570208342E-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 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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