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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
52857 (1998 RT78)
Classification: Main-belt Asteroid          SPK-ID: 2052857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1570654643661454 7.7933e-08  
a 2.299199407553171 7.7526e-09 au
q 1.938074584935466 1.7745e-07 au
i 7.034882931590761 4.7361e-06 deg
node 143.101336622477 3.8563e-05 deg
peri 197.4619074783925 4.1009e-05 deg
M 208.3980655437888 1.6656e-05 deg
tp 2459932.747928331593
(2022-Dec-19.24792833)
5.981e-05 TDB
period 1273.395718147211
3.49
6.4406e-06
1.763e-08
d
yr
n .2827086622560656 1.4299e-09 deg/d
Q 2.660324230170876 8.9703e-09 au
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      8342 days (22.84 yr)  
   first obs. used      1998-08-28  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53442  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:54:46  

Additional Information
 Earth MOID = .929559 au 
 Jupiter MOID = 2.71948 au 
 T_jup = 3.566 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457520.5 (2016-May-12.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578926425038293 7.8089e-08  
q 1.935926924826967 1.7798e-07 au
tp 2457385.662357787047
(2015-Dec-29.16235779)
5.6548e-05 TDB
node 143.1688105171602 3.8564e-05 deg
peri 197.328477282072 4.0999e-05 deg
i 7.035495330314886 4.7388e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      8342 days (22.84 yr)  
   first obs. used      1998-08-28  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53442  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:54:46  

Additional Information
 Jupiter MOID = 2.71948 au 
 T_jup = 3.566 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.09789353560382E-15 -1.388998761645089E-14 3.326514755692231E-12 4.840831296377595E-16 7.390595962685042E-13 -2.618300674778331E-14
q -1.388998761645089E-14 3.167794245959721E-14 -7.601416301302005E-12 -8.466551352099423E-16 -1.689849909529669E-12 5.983330314121139E-14
tp 3.326514755692231E-12 -7.601416301302005E-12 3.197675744983758E-9 3.062799899158722E-12 8.087924221345277E-10 -1.721173336768761E-11
node 4.840831296377595E-16 -8.466551352099423E-16 3.062799899158722E-12 1.487206101209661E-9 -1.474902506061265E-9 1.045769622299814E-10
peri 7.390595962685042E-13 -1.689849909529669E-12 8.087924221345277E-10 -1.474902506061265E-9 1.680954570494967E-9 -1.078751428154525E-10
i -2.618300674778331E-14 5.983330314121139E-14 -1.721173336768761E-11 1.045769622299814E-10 -1.078751428154525E-10 2.245617657465549E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.68   n/a MPCxxxxx  

52857 (1998 RT78)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RT78 = 2000 DU24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-26 23:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin