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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .116610968453378 3.5649e-08  
a 2.312555293583246 7.6769e-09 au
q 2.042885981196518 8.4466e-08 au
i 6.308203938396622 5.0136e-06 deg
node 2.103580062656935 3.1056e-05 deg
peri 108.6922299188096 3.7446e-05 deg
M 320.70176460907 2.1653e-05 deg
tp 2459140.719096421104
(2020-Oct-18.21909642)
7.7437e-05 TDB
period 1284.507413868463
3.52
6.3962e-06
1.751e-08
d
yr
n .2802630768130895 1.3956e-09 deg/d
Q 2.582224605969975 8.5721e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1428  
   data-arc span      10280 days (28.15 yr)  
   first obs. used      1991-10-07  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:33:49  

Additional Information
 Earth MOID = 1.06955 au 
 Jupiter MOID = 2.50958 au 
 T_jup = 3.566 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456449.5 (2013-Jun-06.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1162253119464332 3.553e-08  
q 2.044277011783296 8.4246e-08 au
tp 2456570.832524327951
(2013-Oct-05.33252433)
7.5655e-05 TDB
node 2.208999976462598 3.1025e-05 deg
peri 108.5086826906632 3.7513e-05 deg
i 6.311513705221659 5.0149e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1428  
   data-arc span      10280 days (28.15 yr)  
   first obs. used      1991-10-07  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:33:49  

Additional Information
 Jupiter MOID = 2.50958 au 
 T_jup = 3.566 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.2623973893826E-15 -2.984145229016635E-15 6.504666694753724E-13 2.063571314961375E-15 2.130552610673105E-13 3.667073246842389E-16
q -2.984145229016635E-15 7.097418702624101E-15 -1.458377126762048E-12 -4.831955900516459E-15 -4.842577061837815E-13 -7.408742084075407E-16
tp 6.504666694753724E-13 -1.458377126762048E-12 5.723737052945042E-9 -5.650464362933634E-12 1.60214801752672E-9 2.939881383933495E-12
node 2.063571314961375E-15 -4.831955900516459E-15 -5.650464362933634E-12 9.62578015046101E-10 -9.574646228599642E-10 -1.085783842879897E-11
peri 2.130552610673105E-13 -4.842577061837815E-13 1.60214801752672E-9 -9.574646228599642E-10 1.407258100593424E-9 1.158490472121832E-11
i 3.667073246842389E-16 -7.408742084075407E-16 2.939881383933495E-12 -1.085783842879897E-11 1.158490472121832E-11 2.514961076335157E-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 14.7   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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