Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
27038 (1998 RZ57)
Classification: Main-belt Asteroid          SPK-ID: 2027038
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

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 
[ 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-22 11:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin