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15748 (1991 RG25)
Classification: Main-belt Asteroid          SPK-ID: 2015748
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2171819018955759 2.6148e-08  
a 2.800628444096598 1.108e-08 au
q 2.192382632104851 7.1938e-08 au
i 9.102861204832852 8.3604e-07 deg
node 91.72793736235482 1.5572e-06 deg
peri 224.1786527845964 4.2749e-06 deg
M 126.6844798492301 4.1994e-06 deg
tp 2458598.075561260056
(2019-Apr-24.57556126)
1.7691e-05 TDB
period 1711.912921018302
4.69
1.0159e-05
2.781e-08
d
yr
n .2102910700538788 1.248e-09 deg/d
Q 3.408874256088344 1.3487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2329  
   data-arc span      16377 days (44.84 yr)  
   first obs. used      1976-05-02  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:07:47  

Additional Information
 Earth MOID = 1.187 au 
 Jupiter MOID = 1.91326 au 
 T_jup = 3.272 
[ 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 13.36   n/a E2021B10  
diameter diameter 14.757 km 2.329 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 19.697 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.059   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

15748 (1991 RG25)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 RG25 = 1976 JU2 = 1998 BE19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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