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74174 (1998 RL11)
Classification: Main-belt Asteroid          SPK-ID: 2074174
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0713602525694424 4.8242e-08  
a 2.64804171999841 1.3554e-08 au
q 2.459076794044903 1.3115e-07 au
i 13.84952178729795 4.6324e-06 deg
node 7.563581491628708 1.8673e-05 deg
peri 84.67671258387645 4.4793e-05 deg
M 341.6983273171952 3.7801e-05 deg
tp 2459280.515467084957
(2021-Mar-07.01546708)		 0.00016518 TDB
period 1573.930899641128
4.31		 1.2084e-05
3.308e-08		 d
yr
n .2287266868463436 1.7561e-09 deg/d
Q 2.837006645951917 1.4522e-08 au
   Orbit Determination Parameters
   # obs. used (total)      884  
   data-arc span      8163 days (22.35 yr)  
   first obs. used      1998-09-13  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51508  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 06:56:29  

Additional Information
 Earth MOID = 1.52081 au 
 Jupiter MOID = 2.30174 au 
 T_jup = 3.347 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457442.5 (2016-Feb-24.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06993195851107997 4.745e-08  
q 2.463206990896933 1.2869e-07 au
tp 2457701.157490294761
(2016-Nov-08.65749029)		 0.0001737 TDB
node 7.660519401229106 1.8637e-05 deg
peri 83.44764329623298 4.6158e-05 deg
i 13.86471327606734 4.6356e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      884  
   data-arc span      8163 days (22.35 yr)  
   first obs. used      1998-09-13  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51508  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 06:56:29  

Additional Information
 Jupiter MOID = 2.30174 au 
 T_jup = 3.347 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.251547294506746E-15 -6.078381472492032E-15 3.405874873766882E-12 1.452534694926131E-14 8.937207026680381E-13 -8.617512821716322E-15
q -6.078381472492032E-15 1.656146201624977E-14 -9.44429541604294E-12 -4.133872746596416E-14 -2.479454946750488E-12 2.420204723817071E-14
tp 3.405874873766882E-12 -9.44429541604294E-12 3.017339903300571E-8 2.94518852855094E-11 7.352502833294109E-9 -8.981128882244412E-13
node 1.452534694926131E-14 -4.133872746596416E-14 2.94518852855094E-11 3.473384007649834E-10 -3.28758771900297E-10 -1.423646418186533E-11
peri 8.937207026680381E-13 -2.479454946750488E-12 7.352502833294109E-9 -3.28758771900297E-10 2.130525560171096E-9 1.318093162934297E-11
i -8.617512821716322E-15 2.420204723817071E-14 -8.981128882244412E-13 -1.423646418186533E-11 1.318093162934297E-11 2.148900569453226E-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 15.11   n/a E2021B10  

74174 (1998 RL11)          Discovered 1998-Sep-13 by Spacewatch at Kitt Peak
Reference: 20040415/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
1931-Nov-03 19:01 00:04 Amphi 0.0156677372999981 0.0156496194669045 0.0156858553716807 2.5117127658003 2.51171261971827 2426649.292563677 4.01741593464487 907.435218407639 58.6381586211993 -6.11091434590395 4962.1899407723 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 06:56:30 2021-Feb-24 06:56
2009-May-24 23:26 00:01 Amphi 0.0242944882638095 0.0242927590874672 0.0242962174558595 2.51651483498981 2.51651474095995 2454976.476421014 1.12759137157705 93.370059697828 44.987364214669 26.1672411654338 49831.6104152063 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 06:56:30 2021-Feb-24 06:56
2086-Dec-14 22:51 00:04 Amphi 0.033121842276946 0.0331032531861747 0.0331404313759707 2.5151178669569 2.51511779794878 2483304.451902631 3.97556464314867 926.135112895092 57.3200379252111 -1.60630050873944 5863.11096468067 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 06:56:30 2021-Feb-24 06:56

Alternate Designations
 1998 RL11 = 2002 PX99 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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