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2969 Mikula (1978 RU1)
Classification: Main-belt Asteroid          SPK-ID: 2002969
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 .02999321339039043 1.2746e-08  
a 2.847385341433629 1.1124e-08 au
q 2.76198310528334 3.8161e-08 au
i 1.879693801416659 6.1531e-07 deg
node 181.2627049177828 3.6248e-05 deg
peri 105.1988041681153 5.4601e-05 deg
M .8185949407192326 3.8025e-05 deg
tp 2459196.509435362938
(2020-Dec-13.00943536)
0.00018537 TDB
period 1754.962311494339
4.80
1.0284e-05
2.816e-08
d
yr
n .2051326103370632 1.2021e-09 deg/d
Q 2.932787577583917 1.1458e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2851  
   data-arc span      16262 days (44.52 yr)  
   first obs. used      1976-04-01  
   last obs. used      2020-10-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44038  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:31:14  

Additional Information
 Earth MOID = 1.74445 au 
 Jupiter MOID = 2.09795 au 
 T_jup = 3.305 
[ 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 12.71   n/a E2021B10  
diameter diameter 8.287 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.713 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.226   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2969 Mikula (1978 RU1)          Discovered 1978-Sep-05 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 RU1 = 1976 GB = 1981 FC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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