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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456732.5 (2014-Mar-16.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1296508078139463 4.4593e-08  
q 2.038668675385654 1.0486e-07 au
tp 2456750.613565515920
(2014-Apr-03.11356552)
5.1195e-05 TDB
node 287.2944413043119 4.4789e-05 deg
peri 86.43300773636911 4.7006e-05 deg
i 6.081956201631955 3.7576e-06 deg
  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
 Jupiter MOID = 2.85577 au 
 T_jup = 3.544 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.988522710717303E-15 -4.664914436032514E-15 -5.857021620902973E-13 9.321949084331415E-15 -1.929350528522714E-13 -2.443794895874304E-15
q -4.664914436032514E-15 1.099575375290088E-14 1.390557498865222E-12 -2.052858351852474E-14 4.548964287283912E-13 5.94222516974614E-15
tp -5.857021620902973E-13 1.390557498865222E-12 2.620899081901817E-9 -3.109040707977976E-12 7.559197954586476E-10 1.303607667766853E-12
node 9.321949084331415E-15 -2.052858351852474E-14 -3.109040707977976E-12 2.006016584795059E-9 -1.995240839403869E-9 4.293587357211487E-11
peri -1.929350528522714E-13 4.548964287283912E-13 7.559197954586476E-10 -1.995240839403869E-9 2.209600416691247E-9 -4.230794158418493E-11
i -2.443794895874304E-15 5.94222516974614E-15 1.303607667766853E-12 4.293587357211487E-11 -4.230794158418493E-11 1.411992307623612E-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

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