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3531 Cruikshank (1981 FB)
Classification: Main-belt Asteroid          SPK-ID: 2003531
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1465502686635472 1.8777e-08  
a 2.625665748477423 9.0198e-09 au
q 2.240873727617383 4.9122e-08 au
i 13.12641369425998 7.0975e-07 deg
node 192.7072419152406 1.3382e-06 deg
peri 299.7051284068931 3.7345e-06 deg
M 166.0165095164952 4.6392e-06 deg
tp 2458483.851224693391
(2018-Dec-31.35122469)
1.7549e-05 TDB
period 1554.02351164807
4.25
8.0077e-06
2.192e-08
d
yr
n .2316567267494 1.1937e-09 deg/d
Q 3.010457769337463 1.0342e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2399  
   data-arc span      14498 days (39.69 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45864  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:13:59  

Additional Information
 Earth MOID = 1.28463 au 
 Jupiter MOID = 2.10346 au 
 T_jup = 3.350 
[ 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 12.99   n/a E2021B10  
diameter diameter 8.272 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 148.263 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.196   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3531 Cruikshank (1981 FB)          Discovered 1981-Mar-30 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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