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1839 Ragazza (1971 UF)
Classification: Main-belt Asteroid          SPK-ID: 2001839
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685131410317047 4.7287e-08  
a 2.798258552527472 1.0053e-08 au
q 2.326715214422236 1.3096e-07 au
i 10.16690749873865 4.5063e-06 deg
node 50.88221593226071 2.0971e-05 deg
peri 350.291906167547 2.3471e-05 deg
M 168.9623233810262 1.0537e-05 deg
tp 2458398.050781129781
(2018-Oct-06.55078113)
4.9252e-05 TDB
period 1709.74044989795
4.68
9.2136e-06
2.523e-08
d
yr
n .2105582751004619 1.1347e-09 deg/d
Q 3.269801890632708 1.1747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2659  
   data-arc span      21295 days (58.30 yr)  
   first obs. used      1962-12-02  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:47:54  

Additional Information
 Earth MOID = 1.33514 au 
 Jupiter MOID = 2.14308 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.09   n/a MPCxxxxx  
diameter diameter 8.750 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 210.9 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:
[Polakis, T.; Skiff, B. (2019) Minor Planet Bull. 46, 132-137.]
geometric albedo albedo 0.440   0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1839 Ragazza (1971 UF)          Discovered 1971-Oct-20 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1971 UF = 1929 VP = 1962 XW = 1968 BA = 1983 FW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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