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74617 (1999 RP23)
Classification: Main-belt Asteroid          SPK-ID: 2074617
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1954856215247 3.826e-08  
a 2.344772046178168 8.9813e-09 au
q 1.886402825397287 9.0541e-08 au
i 5.561113385692909 4.8752e-06 deg
node 17.5178164481732 3.7723e-05 deg
peri 25.73375654961719 3.9838e-05 deg
M 246.0326707533799 1.1432e-05 deg
tp 2459415.671218745841
(2021-Jul-20.17121875)
4.2302e-05 TDB
period 1311.442847143276
3.59
7.535e-06
2.063e-08
d
yr
n .2745068157443462 1.5772e-09 deg/d
Q 2.80314126695905 1.0737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      9710 days (26.58 yr)  
   first obs. used      1992-10-31  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51118  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:19:41  

Additional Information
 Earth MOID = .896633 au 
 Jupiter MOID = 2.61508 au 
 T_jup = 3.530 
[ 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 16.3   n/a MPO337820  
rotation period rot_per 5.30 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

74617 (1999 RP23)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RP23 = 1992 UC9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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