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2217 Eltigen (1971 SK2)
Classification: Main-belt Asteroid          SPK-ID: 2002217
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1686006321535404 3.1627e-08  
a 3.152351714712225 1.5733e-08 au
q 2.620863222841447 1.0476e-07 au
i 2.248856165328083 3.4842e-06 deg
node 127.4924487912966 9.6238e-05 deg
peri 173.5901504768107 9.6939e-05 deg
M 277.8210007277788 1.3455e-05 deg
tp 2459467.168808835228
(2021-Sep-09.66880884)
7.7995e-05 TDB
period 2044.327293694254
5.60
1.5304e-05
4.19e-08
d
yr
n .1760970472342777 1.3183e-09 deg/d
Q 3.683840206583004 1.8385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2890  
   data-arc span      23649 days (64.75 yr)  
   first obs. used      1955-11-19  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42928  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:11:34  

Additional Information
 Earth MOID = 1.60536 au 
 Jupiter MOID = 1.54883 au 
 T_jup = 3.184 
[ 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 11.4   n/a MPO344315  
diameter diameter 28.800 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.924 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Ditteon, R.; Kirkpatrick, E.; Doering, K. (2010) Minor Planet Bull. 37, 1-4.]
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.097   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2217 Eltigen           Discovered 1971 Sept. 26 by T. M. Smirnova at the Crimean Astrophysical Observatory.
Named for the site of the heroic landing of Soviet troops in the Crimea in November 1943.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5850Last Updated: 2006-03-21

[ 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
1905-Jan-22 19:41 00:03 Jupiter 1.80950260759937 1.80950118689168 1.80950402830921 2.88116441123993 2.71383761760351 2416868.320108929 2.72399395470957 134.467383992429 12.4775896691483 -75.0351781605185 2731894.03586553 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
1979-Dec-05 19:28 < 00:01 Jupiter 1.85788178767729 1.85788110610702 1.85788246924746 2.21646740371952 2.00022810100371 2444213.310907515 0.975056501969377 57.0475910029178 6.4794443483086 -81.8628529539773 2282600.89451094 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
1990-Jul-13 04:00 < 00:01 Jupiter 1.57955782968234 1.57955748956548 1.57955816979875 1.4196549841099 0.971050840844047 2448085.666690539 0.659752891330554 125.25114515541 81.6382658847759 -24.2386855824001 2601541.64618037 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
2001-Feb-14 12:49 < 00:01 Jupiter 1.5976299681368 1.59762961198446 1.59763032428886 1.72998161247371 1.39013940737907 2451955.033954477 0.373659034461727 53.6023996058509 36.2365533761276 70.3455009245903 2497570.64729968 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
2011-Sep-06 16:35 < 00:01 Jupiter 1.88493186184875 1.88493147344498 1.88493225025253 3.29670719206814 3.15745913573351 2455811.190948683 0.190408095966727 30.1895055572632 13.6733552617834 -84.7263658906113 3649280.81300454 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
2086-Jul-19 06:51 00:02 Jupiter 1.78872773660128 1.78872690575737 1.78872856744509 1.96775675467359 1.71026303071064 2483155.785158705 1.63454224102502 76.7899563476817 13.5927519871414 87.5864906011269 1920211.88317379 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
2097-Feb-25 16:14 00:02 Jupiter 1.56911926843558 1.56911885429965 1.56911968257108 1.4092448053153 0.952027157871806 2487030.176121433 1.95152180797515 129.352047164865 107.016986032091 -3.81950195730298 2353786.13374025 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
2107-Sep-26 21:49 00:02 Jupiter 1.65749903310334 1.65749823678245 1.65749982942403 2.00050456593103 1.72625885589806 2490894.409310907 2.36214590587897 82.9674925081015 14.2126549512155 72.8995841920182 2013495.40837517 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
2118-Apr-19 02:00 00:03 Jupiter 1.96897572720636 1.96897440695678 1.96897704745839 3.76132267701148 3.64515837908315 2494751.583027106 2.58386005859393 137.358503758683 16.5813669768615 -68.5977627939078 3408248.50856427 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11
2193-Feb-25 08:57 00:04 Jupiter 1.7250088223957 1.72500705067158 1.72501059412081 1.75871982941904 1.45294369134772 2522092.872800411 4.1800016431182 185.343397558095 36.7890389812041 72.0149590198797 1649537.29374155 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:41 2020-Nov-13 04:11

Alternate Designations
 1971 SK2 = 1942 LG = 1958 FJ = 1959 NP = 1970 LD = 1974 CL = 1976 NN = 1976 OB1 = 1977 TH5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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