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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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07136025361670714 4.8237e-08  
a 2.648041718279675 1.3539e-08 au
q 2.459076789675616 1.3114e-07 au
i 13.84952192036389 4.6161e-06 deg
node 7.563581277538323 1.8665e-05 deg
peri 84.67671406962691 4.4746e-05 deg
M 341.6983261638665 3.7739e-05 deg
tp 2459280.515472049443
(2021-Mar-07.01547205)
0.0001649 TDB
period 1573.930898108767
4.31
1.2071e-05
3.305e-08
d
yr
n .2287266870690292 1.7541e-09 deg/d
Q 2.837006646883733 1.4505e-08 au
  Orbit Determination Parameters
   # obs. used (total)      891  
   data-arc span      8191 days (22.43 yr)  
   first obs. used      1998-09-13  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:11:37  

Additional Information
 Earth MOID = 1.52081 au 
 Jupiter MOID = 2.30174 au 
 T_jup = 3.347 
[ 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 15.12   n/a MPCxxxxx  

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 24 CATAB v2.0f-lin.ifort 2021-Apr-13 13:11:40 2021-Apr-13 13:11
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 24 CATAB v2.0f-lin.ifort 2021-Apr-13 13:11:40 2021-Apr-13 13:11
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 24 CATAB v2.0f-lin.ifort 2021-Apr-13 13:11:40 2021-Apr-13 13:11

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