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2947 Kippenhahn (1955 QP1)
Classification: Main-belt Asteroid          SPK-ID: 2002947
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .125105806012983 1.4269e-08  
a 2.307240305906106 5.9724e-09 au
q 2.018591147770081 3.27e-08 au
i 3.136455309317964 6.3216e-07 deg
node 283.959213768152 7.7887e-06 deg
peri 166.3523903445816 1.0203e-05 deg
M 135.1219403319177 4.6391e-06 deg
tp 2458720.035788227150
(2019-Aug-24.53578823)
1.6112e-05 TDB
period 1280.081649311313
3.50
4.9703e-06
1.361e-08
d
yr
n .2812320606218211 1.092e-09 deg/d
Q 2.595889464042131 6.7195e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2998  
   data-arc span      28250 days (77.34 yr)  
   first obs. used      1943-04-04  
   last obs. used      2020-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44039  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:29:46  

Additional Information
 Earth MOID = 1.03505 au 
 Jupiter MOID = 2.56784 au 
 T_jup = 3.575 
[ 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 12.86   n/a E2021B10  
diameter diameter 7.588 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.430 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Chirony, V.; Galad, A.; Pravec, P. Kusnirak, P.; et al. (2011) Planet. Space Sci. 59, 1482-1489.]
[Aznar, A.; Garceran, A.C.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 174-181.]
geometric albedo albedo 0.206   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2947 Kippenhahn (1955 QP1)          Discovered 1955-Aug-22 by Groeneveld, I. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1955 QP1 = 1943 GC1 = 1955 SE = 1973 YD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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