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74714 (1999 RP157)
Classification: Main-belt Asteroid          SPK-ID: 2074714
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1425460040822379 3.4371e-08  
a 2.311890797503376 7.71e-09 au
q 1.982340002444771 8.0062e-08 au
i 7.606944974450945 3.841e-06 deg
node 134.1760745085978 2.4835e-05 deg
peri 195.4346015991174 2.8223e-05 deg
M 26.92155647903355 1.1577e-05 deg
tp 2459104.483235872257
(2020-Sep-11.98323587)
4.1339e-05 TDB
period 1283.953812733946
3.52
6.4229e-06
1.758e-08
d
yr
n .2803839175752323 1.4026e-09 deg/d
Q 2.641441592561981 8.8091e-09 au
  Orbit Determination Parameters
   # obs. used (total)      838  
   data-arc span      9860 days (27.00 yr)  
   first obs. used      1994-01-10  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53478  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 06:58:51  

Additional Information
 Earth MOID = .970034 au 
 Jupiter MOID = 2.68446 au 
 T_jup = 3.559 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457556.5 (2016-Jun-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1424358714068898 3.4285e-08  
q 1.982646297158991 7.984e-08 au
tp 2457821.556324815841
(2017-Mar-09.05632482)
4.2756e-05 TDB
node 134.2003812717412 2.4852e-05 deg
peri 195.7780841017717 2.8263e-05 deg
i 7.60422711254615 3.8396e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      838  
   data-arc span      9860 days (27.00 yr)  
   first obs. used      1994-01-10  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53478  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 06:58:51  

Additional Information
 Jupiter MOID = 2.68446 au 
 T_jup = 3.559 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.175430776129675E-15 -2.727874117984331E-15 -7.764233444976102E-14 1.269120774242259E-14 -3.773539400579235E-14 -4.896215192356864E-16
q -2.727874117984331E-15 6.374416687793456E-15 1.024759714001561E-13 -3.004225710265153E-14 6.216247590496043E-14 1.329338503195647E-15
tp -7.764233444976102E-14 1.024759714001561E-13 1.828090936046026E-9 -1.05813219474573E-11 5.842101451590366E-10 -1.226200150545127E-12
node 1.269120774242259E-14 -3.004225710265153E-14 -1.05813219474573E-11 6.176080571490586E-10 -6.149012445522492E-10 1.308188036210852E-11
peri -3.773539400579235E-14 6.216247590496043E-14 5.842101451590366E-10 -6.149012445522492E-10 7.987859844036499E-10 -1.333468148315317E-11
i -4.896215192356864E-16 1.329338503195647E-15 -1.226200150545127E-12 1.308188036210852E-11 -1.333468148315317E-11 1.474235834169537E-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 16.16   n/a E2021B10  

74714 (1999 RP157)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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