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3412 Kafka (1983 AU2)
Classification: Main-belt Asteroid          SPK-ID: 2003412
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1044968357315562 3.0449e-08  
a 2.224241803895672 5.2289e-09 au
q 1.991815573486726 6.8025e-08 au
i 2.973499577454468 3.0481e-06 deg
node 307.5848860238361 6.9835e-05 deg
peri 117.4704453868613 7.2008e-05 deg
M 132.2007954203131 1.7335e-05 deg
tp 2458555.558419994224
(2019-Mar-13.05841999)
5.7937e-05 TDB
period 1211.63392620153
3.32
4.2726e-06
1.17e-08
d
yr
n .2971194452507609 1.0477e-09 deg/d
Q 2.456668034304618 5.7753e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2651  
   data-arc span      28355 days (77.63 yr)  
   first obs. used      1942-12-31  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43964  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:00:30  

Additional Information
 Earth MOID = 1.00744 au 
 Jupiter MOID = 2.77519 au 
 T_jup = 3.638 
[ 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 13.4   n/a MPO452211  
diameter diameter 6.084 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.231   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3412 Kafka (1983 AU2)          Discovered 1983-Jan-10 by Kirk, R. and Rudy, D. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1921-May-23 03:05 00:03 Thisb 0.0454228395983221 0.0454174098037108 0.0454282695774373 3.12209989030881 3.12209984223 2422832.628611088 2.62834982377437 307.321856834214 37.4158124888654 28.5347973172376 88819.6609339642 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:37 2020-Nov-13 04:00

Alternate Designations
 1983 AU2 = 1942 YB = 1977 FF3 = 1978 PA2 = 1978 QE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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