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2846 Ylppo (1942 CJ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2002846
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07300581146803216 1.25e-08  
a 3.220239531915335 1.5229e-08 au
q 2.98514333176642 4.43e-08 au
i 11.43449685671983 8.1835e-07 deg
node 144.4829904356486 4.6733e-06 deg
peri 72.18004632847102 1.7804e-05 deg
M 156.9446107622248 2.0219e-05 deg
tp 2458280.316166252177
(2018-Jun-10.81616625)
0.00011625 TDB
period 2110.720327001817
5.78
1.4973e-05
4.099e-08
d
yr
n .1705578874636431 1.2099e-09 deg/d
Q 3.45533573206425 1.6341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2923  
   data-arc span      28855 days (79.00 yr)  
   first obs. used      1942-02-12  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43583  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:22:01  

Additional Information
 Earth MOID = 2.00462 au 
 Jupiter MOID = 1.60183 au 
 T_jup = 3.154 
[ 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 11.49   n/a MPCxxxxx  
diameter diameter 27.994 km 0.302 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 18.894 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 0.072   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2846 Ylppo (1942 CJ)          Discovered 1942-Feb-12 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1942 CJ = 1968 TK = 1971 BT1 = 1972 JN1 = 1974 UG = 1975 XK5 = 1979 OE13 = 1979 QB6 = 1979 QF8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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