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JPL Small-Body Database Browser
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27038 (1998 RZ57)
Classification: Main-belt Asteroid          SPK-ID: 2027038
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1166109961303358 3.5492e-08  
a 2.312555293955726 7.6289e-09 au
q 2.042885917521067 8.4177e-08 au
i 6.308204256122743 5.0009e-06 deg
node 2.10356364932615 3.0605e-05 deg
peri 108.69223075 3.7086e-05 deg
M 320.7017838341791 2.1634e-05 deg
tp 2459140.719027858328
(2020-Oct-18.21902786)
7.7368e-05 TDB
period 1284.507414178803
3.52
6.3562e-06
1.74e-08
d
yr
n .2802630767453773 1.3868e-09 deg/d
Q 2.582224670390384 8.5185e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1443  
   data-arc span      10337 days (28.30 yr)  
   first obs. used      1991-10-07  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54858  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:55:59  

Additional Information
 Earth MOID = 1.06955 au 
 Jupiter MOID = 2.50958 au 
 T_jup = 3.566 
[ 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 14.7   n/a MPO319419  
diameter diameter 2.900 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.304   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27038 (1998 RZ57)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RZ57 = 1991 TP7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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