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JPL Small-Body Database Browser
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48457 Joseffried (1991 RO3)
Classification: Main-belt Asteroid          SPK-ID: 2048457
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07498805013208233 3.9524e-08  
a 2.337889602402603 1.1625e-08 au
q 2.162575819694363 9.5853e-08 au
i 6.297419564730045 5.226e-06 deg
node 328.8817146764418 3.6685e-05 deg
peri 289.9731095097604 5.1385e-05 deg
M 103.9857196130236 3.7727e-05 deg
tp 2458623.357368584449
(2019-May-19.85736858)		 0.00013592 TDB
period 1305.673007936697
3.57		 9.7382e-06
2.666e-08		 d
yr
n .2757198761188253 2.0564e-09 deg/d
Q 2.513203385110844 1.2496e-08 au
   Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      9736 days (26.66 yr)  
   first obs. used      1991-09-12  
   last obs. used      2018-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5666  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:46:29  

Additional Information
 Earth MOID = 1.15692 au 
 Jupiter MOID = 2.54742 au 
 T_jup = 3.554 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456576.5 (2013-Oct-11.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07522224758891766 3.961e-08  
q 2.162408229269214 9.608e-08 au
tp 2456009.923976093134
(2012-Mar-23.42397609)		 0.00013033 TDB
node 328.9721797065012 3.6738e-05 deg
peri 289.6946822615488 5.1256e-05 deg
i 6.292922491019406 5.2217e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      9736 days (26.66 yr)  
   first obs. used      1991-09-12  
   last obs. used      2018-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5666  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:46:29  

Additional Information
 Jupiter MOID = 2.54742 au 
 T_jup = 3.554 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.56894082980975E-15 -3.783409938637812E-15 4.550476380660201E-13 1.106900026916411E-14 1.450325875619778E-13 4.005800705956639E-16
q -3.783409938637812E-15 9.231338288629006E-15 -8.025623313370802E-13 -2.68300008443801E-14 -2.601852140971692E-13 -6.178913303773275E-16
tp 4.550476380660201E-13 -8.025623313370802E-13 1.698601042809347E-8 -5.586548976775924E-13 4.669089501361446E-9 9.575744264447838E-12
node 1.106900026916411E-14 -2.68300008443801E-14 -5.586548976775924E-13 1.349703926606017E-9 -1.340876383009655E-9 -4.118061718544106E-12
peri 1.450325875619778E-13 -2.601852140971692E-13 4.669089501361446E-9 -1.340876383009655E-9 2.627205164989227E-9 6.735304967534301E-12
i 4.005800705956639E-16 -6.178913303773275E-16 9.575744264447838E-12 -4.118061718544106E-12 6.735304967534301E-12 2.72657396418498E-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 15.2   n/a MPO436121  

48457 Joseffried           Discovered 1991 Sept. 12 by L. D. Schmadel and F. Börngen at Tautenburg.
Josef W. Fried (b. 1948) is a German astronomer at the Heidelberg Max-Planck-Institut für Astronomie who was heavily involved in several instrumentation projects for the Calar Alto telescopes. Fried studied high-redshift quasars and tidal streams in our galaxy. He is an enthusiastic motorcyclist.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-04-25Last Updated: 2013-04-29

Alternate Designations
 1991 RO3 = 1998 RU23 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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