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101123 (1998 RH55)
Classification: Main-belt Asteroid          SPK-ID: 2101123
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1611526082110132 8.5814e-08  
a 2.554445393218251 1.362e-08 au
q 2.142789855568522 2.2613e-07 au
i 6.988240680099674 6.9805e-06 deg
node 329.5488044387609 2.6835e-05 deg
peri 331.6899531400393 3.1488e-05 deg
M 208.7263072379762 1.3189e-05 deg
tp 2459827.120024805169
(2022-Sep-04.62002481)
5.5371e-05 TDB
period 1491.225637525337
4.08
1.1927e-05
3.265e-08
d
yr
n .2414121585231151 1.9308e-09 deg/d
Q 2.966100930867979 1.5815e-08 au
  Orbit Determination Parameters
   # obs. used (total)      628  
   data-arc span      8209 days (22.48 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52345  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:18  

Additional Information
 Earth MOID = 1.12852 au 
 Jupiter MOID = 2.28113 au 
 T_jup = 3.410 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO449612  
diameter diameter 3.804 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101123 (1998 RH55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 RH55 = 2002 RK32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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