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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411970199010747 5.1369e-08  
a 2.447414325119697 1.1404e-08 au
q 2.101846715949596 1.3025e-07 au
i 5.844067019896558 4.6866e-06 deg
node 305.26085440 4.7245e-05 deg
peri 40.83740276421754 4.9579e-05 deg
M 300.37703948752 1.6907e-05 deg
tp 2459432.117147812643
(2021-Aug-05.61714781)
6.6236e-05 TDB
period 1398.490992326658
3.83
9.7748e-06
2.676e-08
d
yr
n .2574203208853501 1.7992e-09 deg/d
Q 2.792981934289799 1.3014e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      7943 days (21.75 yr)  
   first obs. used      1998-08-27  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:34:36  

Additional Information
 Earth MOID = 1.09636 au 
 Jupiter MOID = 2.60331 au 
 T_jup = 3.477 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457181.5 (2015-Jun-08.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398293622395679 5.1255e-08  
q 2.106303854887514 1.296e-07 au
tp 2456633.620289339827
(2013-Dec-07.12028934)
6.2724e-05 TDB
node 305.34650222129 4.7152e-05 deg
peri 40.54008519897074 4.9559e-05 deg
i 5.849146167405086 4.6891e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      7943 days (21.75 yr)  
   first obs. used      1998-08-27  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:34:36  

Additional Information
 Jupiter MOID = 2.60331 au 
 T_jup = 3.477 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.627067698119591E-15 -6.626646020899638E-15 1.81898357670073E-14 8.370330599858493E-15 -5.425927961939092E-15 2.249628772700594E-15
q -6.626646020899638E-15 1.679620743046969E-14 3.183353894678614E-15 -2.089451506071492E-14 3.235097764136416E-14 -5.280435580852304E-15
tp 1.81898357670073E-14 3.183353894678614E-15 3.934301029268881E-9 -1.417564124688076E-11 9.816047991097389E-10 2.468312449335783E-12
node 8.370330599858493E-15 -2.089451506071492E-14 -1.417564124688076E-11 2.223305614408596E-9 -2.214900433064877E-9 4.537013766241848E-11
peri -5.425927961939092E-15 3.235097764136416E-14 9.816047991097389E-10 -2.214900433064877E-9 2.456100817979072E-9 -4.449406067524817E-11
i 2.249628772700594E-15 -5.280435580852304E-15 2.468312449335783E-12 4.537013766241848E-11 -4.449406067524817E-11 2.198802917816276E-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 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 16 CATAB v2.0f-lin.ifort 2020-Nov-12 23:34:38 2020-Nov-12 23:34
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 16 CATAB v2.0f-lin.ifort 2020-Nov-12 23:34:38 2020-Nov-12 23:34
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 16 CATAB v2.0f-lin.ifort 2020-Nov-12 23:34:38 2020-Nov-12 23:34

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