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74649 (1999 RF73)
Classification: Main-belt Asteroid          SPK-ID: 2074649
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1013271265223689 3.941e-08  
a 2.231528487820341 8.2629e-09 au
q 2.005414118396699 9.0346e-08 au
i 3.142918057217115 4.4373e-06 deg
node 235.1120961811492 7.4824e-05 deg
peri 201.9557822900244 7.8556e-05 deg
M 59.0411506324472 2.4448e-05 deg
tp 2459000.810885122312
(2020-May-31.31088512)
8.223e-05 TDB
period 1217.59282442677
3.33
6.7628e-06
1.852e-08
d
yr
n .2956653429437582 1.6422e-09 deg/d
Q 2.457642857243983 9.1002e-09 au
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      9866 days (27.01 yr)  
   first obs. used      1994-01-10  
   last obs. used      2021-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57237  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 06:58:35  

Additional Information
 Earth MOID = 1.02057 au 
 Jupiter MOID = 2.73464 au 
 T_jup = 3.633 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457215.5 (2015-Jul-12.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1008824968980387 3.9352e-08  
q 2.006267122691021 9.0163e-08 au
tp 2457781.390875636870
(2017-Jan-27.89087564)
8.0231e-05 TDB
node 235.1432441600065 7.4854e-05 deg
peri 201.4580656527465 7.8629e-05 deg
i 3.141579278810913 4.438e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      9866 days (27.01 yr)  
   first obs. used      1994-01-10  
   last obs. used      2021-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57237  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 06:58:35  

Additional Information
 Jupiter MOID = 2.73464 au 
 T_jup = 3.633 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.548551881341482E-15 -3.536955978492117E-15 -5.281483180819832E-13 5.776571451749183E-15 -1.162489209076089E-13 -8.730832800096678E-16
q -3.536955978492117E-15 8.129285972862063E-15 1.384107621266405E-12 -1.25949352453726E-14 3.114191029723145E-13 2.115801634037084E-15
tp -5.281483180819832E-13 1.384107621266405E-12 6.437014993075374E-9 1.487274533502121E-11 1.940744067715389E-9 2.004053269866326E-12
node 5.776571451749183E-15 -1.25949352453726E-14 1.487274533502121E-11 5.603104067781542E-9 -5.589435045716515E-9 -5.090326584157103E-11
peri -1.162489209076089E-13 3.114191029723145E-13 1.940744067715389E-9 -5.589435045716515E-9 6.182470975262879E-9 5.141136431550263E-11
i -8.730832800096678E-16 2.115801634037084E-15 2.004053269866326E-12 -5.090326584157103E-11 5.141136431550263E-11 1.969621339043524E-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 16.4   n/a MPO436305  
rotation period rot_per 0.97 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

74649 (1999 RF73)          Discovered 1999-Sep-07 by LINEAR at Socorro
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
2069-Jun-05 22:30 00:04 Thisb 0.0216086098727868 0.0216043723911645 0.0216128493887675 3.17902549066372 3.17902539140837 2476903.437768528 4.19164744873106 398.697138982436 45.1215277326522 58.6106130925169 61246.9034334371 T 22 CATAB v2.0f-lin.ifort 2021-Feb-24 06:58:37 2021-Feb-24 06:58
2147-May-01 16:41 00:02 Iris 0.0421969048846929 0.0421736947505225 0.042220115134843 3.57734274077508 3.57734270269202 2505356.194911124 1.52135231627041 1162.17360038341 36.2353537376837 -5.51794292108822 17588.0150895237 T 22 CATAB v2.0f-lin.ifort 2021-Feb-24 06:58:37 2021-Feb-24 06:58
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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