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JPL Small-Body Database Browser
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74735 (1999 RB180)
Classification: Main-belt Asteroid          SPK-ID: 2074735
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502922814070939 5.4015e-08  
a 2.359399928520263 1.2049e-08 au
q 2.004800330511218 1.3102e-07 au
i 5.576945170082884 4.8181e-06 deg
node 66.35720668385314 6.2075e-05 deg
peri 314.952307063195 6.434e-05 deg
M 124.3921195707693 1.9576e-05 deg
tp 2458143.105290489571
(2018-Jan-24.60529049)
7.0133e-05 TDB
period 1323.734140007758
3.62
1.014e-05
2.776e-08
d
yr
n .2719579325784331 2.0832e-09 deg/d
Q 2.713999526529308 1.3859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      7181 days (19.66 yr)  
   first obs. used      1999-09-09  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5574  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:55  

Additional Information
 Earth MOID = 1.01196 au 
 Jupiter MOID = 2.7404 au 
 T_jup = 3.531 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456885.5 (2014-Aug-16.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1488552304627969 5.3844e-08  
q 2.008550243721373 1.3044e-07 au
tp 2456817.903970298578
(2014-Jun-09.40397030)
6.6514e-05 TDB
node 66.44512846866981 6.2078e-05 deg
peri 314.7139663416002 6.4407e-05 deg
i 5.576117701023381 4.8153e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      7181 days (19.66 yr)  
   first obs. used      1999-09-09  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5574  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:55  

Additional Information
 Jupiter MOID = 2.7404 au 
 T_jup = 3.531 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.899139217558327E-15 -7.003684623391858E-15 -1.076726218592528E-12 2.544887747795125E-14 -3.158560896398189E-13 -4.880382798203049E-16
q -7.003684623391858E-15 1.701407353916549E-14 2.804840119822358E-12 -6.056720037433568E-14 8.129392829673231E-13 1.478900632640006E-15
tp -1.076726218592528E-12 2.804840119822358E-12 4.424129771428599E-9 -3.077904364264555E-12 1.186594786168011E-9 3.174750861028555E-12
node 2.544887747795125E-14 -6.056720037433568E-14 -3.077904364264555E-12 3.853702973950252E-9 -3.835456545670064E-9 -6.533832955251167E-11
peri -3.158560896398189E-13 8.129392829673231E-13 1.186594786168011E-9 -3.835456545670064E-9 4.148226522302552E-9 6.58563718290813E-11
i -4.880382798203049E-16 1.478900632640006E-15 3.174750861028555E-12 -6.533832955251167E-11 6.58563718290813E-11 2.31874791397678E-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 15.8   n/a MPO432300  
diameter diameter 1.729 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.283   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74735 (1999 RB180)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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