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49041 (1998 RW)
Classification: Main-belt Asteroid          SPK-ID: 2049041
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411970241162133 4.688e-08  
a 2.447414324575004 1.0895e-08 au
q 2.101846705165622 1.184e-07 au
i 5.844067344987199 4.6477e-06 deg
node 305.2608641919924 4.3144e-05 deg
peri 40.83739364589218 4.5653e-05 deg
M 300.3770392230494 1.6889e-05 deg
tp 2459432.117148762708
(2021-Aug-05.61714876)		 6.6188e-05 TDB
period 1398.490991859789
3.83		 9.3382e-06
2.557e-08		 d
yr
n .2574203209712867 1.7189e-09 deg/d
Q 2.792981943984387 1.2433e-08 au
   Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      7943 days (21.75 yr)  
   first obs. used      1998-08-27  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51592  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:13:53  

Additional Information
 Earth MOID = 1.09636 au 
 Jupiter MOID = 2.60331 au 
 T_jup = 3.477 
[ 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 15.67   n/a E2021B10  

49041 (1998 RW)          Discovered 1998-Sep-12 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1991-Aug-30 18:13 < 00:01 Amphi 0.0457439259471487 0.0457416087387095 0.0457462432608252 2.93406479489729 2.93406475206514 2448499.258805582 0.870735920981976 171.849818183419 59.2608881025622 -52.1214535199271 94278.4136673667 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 10:13:55 2021-Apr-13 10:13
2096-Jul-28 11:39 00:02 Iris 0.0313549692643719 0.0313380891161226 0.0313718494618417 4.25220984920784 4.2522098060905 2486817.985119300 2.01352089006477 843.708861219217 58.9608587513917 4.263084107656 8101.14065805089 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 10:13:55 2021-Apr-13 10:13
2196-Feb-17 17:52 00:05 Iris 0.0348104137284216 0.0347755744280554 0.0348452549651295 3.78842929319582 3.78842924960403 2523180.244404391 4.75559383807767 1783.64189103371 58.7655192063344 -13.2557596137502 20503.2717372315 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 10:13:55 2021-Apr-13 10:13

Alternate Designations
 1998 RW = 2000 BU19 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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