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117180 (2004 RH78)
Classification: Main-belt Asteroid          SPK-ID: 2117180
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03524898265333971 5.3772e-08  
a 2.714989167100454 2.2028e-08 au
q 2.619288561045325 1.4887e-07 au
i 6.698993144874263 5.0212e-06 deg
node 42.4083798360863 4.9269e-05 deg
peri 343.8854703872635 9.2559e-05 deg
M 163.1917545065934 8.1142e-05 deg
tp 2458259.793272185615
(2018-May-21.29327219)
0.00036508 TDB
period 1633.994455292196
4.47
1.9886e-05
5.444e-08
d
yr
n .2203189850700098 2.6813e-09 deg/d
Q 2.810689773155583 2.2804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:09:34  

Additional Information
 Earth MOID = 1.62433 au 
 Jupiter MOID = 2.33635 au 
 T_jup = 3.350 
[ 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 15.6   n/a MPO422404  

117180 (2004 RH78)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1921-Jul-23 10:16 00:05 Hebe 0.0178619630481471 0.0178422292421355 0.0178817177300146 5.48617809598927 5.48617803254996 2422893.928118553 5.16659426634018 1378.24083917742 66.0887860614841 -44.4926539344545 28358.4405606077 T 23 CATAB v2.0f-lin.ifort 2020-May-20 20:09:37 2020-May-20 20:09
2042-May-30 01:55 00:02 Hebe 0.0401961286218573 0.0401849475441106 0.0402073097077309 5.5802005962865 5.58020056857094 2467034.579570710 1.9910929829161 558.127341114972 65.7699728947882 2.98106580587531 11758.8325471818 T 23 CATAB v2.0f-lin.ifort 2020-May-20 20:09:37 2020-May-20 20:09
2128-Jul-08 08:46 00:06 Hygie 0.0348098425574747 0.0347966194320078 0.0348231052880194 3.11348860248406 3.11348824598933 2498484.865328745 6.30769135797941 1965.88935029056 54.0653174797199 70.4944278610897 90526.2440243935 T 23 CATAB v2.0f-lin.ifort 2020-May-20 20:09:37 2020-May-20 20:09
2150-Dec-09 09:52 00:11 Hygie 0.04139603397386 0.0413497448958772 0.0414423231771566 3.22786297538335 3.22786268622973 2506673.911336479 11.2561339692268 2305.00301041052 52.3990947969475 2.87504577101638 6485.71047455426 T 23 CATAB v2.0f-lin.ifort 2020-May-20 20:09:37 2020-May-20 20:09

Alternate Designations
 2004 RH78 = 2000 WO79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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