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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1687105982241035 1.4529e-08  
a 3.15222580319406 1.3569e-08 au
q 2.620411902199735 4.8067e-08 au
i 2.248872297738848 4.2654e-07 deg
node 127.4927639867599 2.2202e-05 deg
peri 173.6210500821538 2.4371e-05 deg
M 313.0242997741339 5.9761e-06 deg
tp 2459467.244312469691
(2021-Sep-09.74431247)
3.4481e-05 TDB
period 2044.204812857975
5.60
1.3199e-05
3.614e-08
d
yr
n .1761075982874186 1.1371e-09 deg/d
Q 3.684039704188385 1.5858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2929  
   data-arc span      23841 days (65.27 yr)  
   first obs. used      1955-11-19  
   last obs. used      2021-02-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42641  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:29:41  

Additional Information
 Earth MOID = 1.60293 au 
 Jupiter MOID = 1.5483 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 11.47   n/a E2021B10  
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. 2020-October); 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 19:43 00:02 Jupiter 1.80950152258566 1.80950036196455 1.80950268320872 2.88115829420382 2.71383102093607 2416868.321601181 2.4199284475331 117.02651207465 6.24898296236964 -75.4464611717574 5878862.6505163 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
1979-Dec-05 19:28 < 00:01 Jupiter 1.85788203695135 1.85788149079932 1.85788258310328 2.21646802620329 2.00022882262297 2444213.311233419 0.885967026299707 36.6603640501092 2.21327054422655 -78.8328415232057 4413876.16940886 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
1990-Jul-13 04:00 < 00:01 Jupiter 1.57955780589756 1.57955757252471 1.57955803927031 1.41965452590232 0.971050165689806 2448085.666850715 0.616218744154491 55.8807818607733 20.9564966968775 6.92233021697504 5258989.46738987 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
2001-Feb-14 12:49 < 00:01 Jupiter 1.59762987224149 1.5976296657348 1.59763007874809 1.72998105623396 1.39013869437237 2451955.033962513 0.358946063722378 23.3442012131074 8.23793684446947 25.2601081749894 5571586.63751301 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
2011-Sep-06 16:35 < 00:01 Jupiter 1.8849318563457 1.88493157883566 1.88493213385575 3.2967070572292 3.15745899531871 2455811.190898540 0.155278299974514 12.1866272687925 6.0493484465677 -42.3740740690167 6416741.38436437 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
2086-Jul-19 06:51 00:01 Jupiter 1.78872790982948 1.78872723326683 1.78872858639224 1.96775717518835 1.71026354288082 2483155.785577887 1.37488893706876 55.6027534699208 5.11164456668199 85.2637035243016 4383208.65735167 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
2097-Feb-25 16:15 00:02 Jupiter 1.56911920226136 1.56911899308956 1.56911941143335 1.40924425661491 0.952026324873991 2487030.176779304 1.64502698886517 56.1175362659537 51.21385146814 73.7782338978599 6011227.94986715 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
2107-Sep-26 21:51 00:02 Jupiter 1.65749847683162 1.6574977188784 1.65749923478464 2.00050178746295 1.72625553830688 2490894.410289987 2.00273129853574 64.2517192925382 4.03782072737477 65.9205462904533 6287999.321108 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
2118-Apr-19 02:01 00:02 Jupiter 1.96897489171638 1.96897373314097 1.96897605029358 3.76131775786999 3.64515325375248 2494751.584239590 2.18163396478173 113.591243019755 8.42289244842931 -66.5423314299514 6595687.1560929 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30
2193-Feb-25 09:01 00:04 Jupiter 1.72501039078726 1.72500890271359 1.7250118788621 1.75872418688237 1.45294927498258 2522092.875781838 3.58347042428725 155.466137851751 13.2020794070554 71.6492360124259 4523544.95457511 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 13:30:34 2021-Apr-12 13:30

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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