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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07119570859387364 4.9555e-08  
a 2.647482915625051 1.5055e-08 au
q 2.458993493456951 1.3331e-07 au
i 13.85044848579212 5.6308e-06 deg
node 7.566447894065235 2.0135e-05 deg
peri 84.76456132947803 4.951e-05 deg
M 295.8508829652357 4.3713e-05 deg
tp 2459280.873109667967
(2021-Mar-07.37310967)
0.00019129 TDB
period 1573.432716552727
4.31
1.3421e-05
3.674e-08
d
yr
n .2287991067001156 1.9516e-09 deg/d
Q 2.835972337793151 1.6127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53596  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:08:51  

Additional Information
 Earth MOID = 1.52112 au 
 Jupiter MOID = 2.30293 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 15.0   n/a MPO502605  

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 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:08:53 2020-Dec-18 04:08
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 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:08:53 2020-Dec-18 04:08
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 21 CATAB v2.0f-lin.ifort 2020-Dec-18 04:08:53 2020-Dec-18 04:08

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