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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07311803751819061 3.6435e-08  
a 3.224672514285574 1.8533e-08 au
q 2.988890788402164 1.1957e-07 au
i 11.42526786979834 4.2317e-06 deg
node 144.5009205747004 1.9743e-05 deg
peri 73.31547965625076 3.3938e-05 deg
M 53.49937731340137 2.8063e-05 deg
tp 2458286.179231840868
(2018-Jun-16.67923184)
0.00016447 TDB
period 2115.080253633954
5.79
1.8234e-05
4.992e-08
d
yr
n .1702063074824126 1.4673e-09 deg/d
Q 3.460454240168985 1.9888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2182  
   data-arc span      28315 days (77.52 yr)  
   first obs. used      1942-02-12  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47825  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:27:35  

Additional Information
 Earth MOID = 2.00948 au 
 Jupiter MOID = 1.60199 au 
 T_jup = 3.153 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456514.5 (2013-Aug-10.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07089954467038488 3.6479e-08  
q 2.996091895543872 1.188e-07 au
tp 2456181.383237383609
(2012-Sep-10.88323738)
0.00016897 TDB
node 144.6680841004955 1.9739e-05 deg
peri 74.82476145698514 3.4696e-05 deg
i 11.42432565477316 4.2334e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2182  
   data-arc span      28315 days (77.52 yr)  
   first obs. used      1942-02-12  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47825  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:27:35  

Additional Information
 Jupiter MOID = 1.60199 au 
 T_jup = 3.153 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.330726492769016E-15 -4.290381197077243E-15 -1.182114682750334E-12 -3.773124381809886E-16 -2.062182873600171E-13 1.729370569194311E-17
q -4.290381197077243E-15 1.411436850076333E-14 3.794061277973073E-12 2.663803110235482E-15 6.683699244218086E-13 3.929782897115123E-16
tp -1.182114682750334E-12 3.794061277973073E-12 2.855231182290147E-8 -1.450280092546065E-11 4.844096411646212E-9 -6.646937033932547E-13
node -3.773124381809886E-16 2.663803110235482E-15 -1.450280092546065E-11 3.896287341983281E-10 -3.839134426860516E-10 1.505255701741585E-11
peri -2.062182873600171E-13 6.683699244218086E-13 4.844096411646212E-9 -3.839134426860516E-10 1.203803636112706E-9 -1.484283085880068E-11
i 1.729370569194311E-17 3.929782897115123E-16 -6.646937033932547E-13 1.505255701741585E-11 -1.484283085880068E-11 1.792136046324126E-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 11.4   n/a MPO347543  
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. 2019-January); 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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