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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 ]

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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1687105959290667 1.4529e-08  
a 3.152225798893932 1.3569e-08 au
q 2.620411905859559 4.8067e-08 au
i 2.248872295820774 4.2654e-07 deg
node 127.4927642599216 2.2202e-05 deg
peri 173.621049253761 2.4371e-05 deg
M 313.0243012357086 5.9761e-06 deg
tp 2459467.244303624543
(2021-Sep-09.74430362)
3.4481e-05 TDB
period 2044.204808675054
5.60
1.3199e-05
3.614e-08
d
yr
n .1761075986477759 1.1371e-09 deg/d
Q 3.684039691928306 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42655  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 13:39:59  

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

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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 00:02 Jupiter 1.80950226578897 1.80950110524875 1.80950342633109 2.88116244784088 2.71383550056524 2416868.320484353 2.41973995368751 117.017564875685 6.24899911381854 -75.4462781511075 5878867.57925926 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
1979-Dec-05 19:28 < 00:01 Jupiter 1.85788188219972 1.85788133605174 1.85788242834758 2.21646738519542 2.00022809207318 2444213.311017274 0.885960148059424 36.6600907799027 2.21326039699387 -78.8329013321555 4413875.09288027 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
1990-Jul-13 04:00 < 00:01 Jupiter 1.57955774915104 1.5795575157791 1.57955798252289 1.41965435197264 0.97104988851857 2448085.666742468 0.616216593322968 55.8807464007762 20.956467164708 6.92219574610013 5258990.16652752 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
2001-Feb-14 12:49 < 00:01 Jupiter 1.59762982417417 1.5976296176673 1.59763003068094 1.72998094025971 1.39013853646492 2451955.033969948 0.358946248293826 23.3442228146392 8.23793717664937 25.260091479854 5571585.32201599 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
2011-Sep-06 16:35 < 00:01 Jupiter 1.88493182443427 1.88493154692423 1.88493210194432 3.29670684447673 3.15745876998795 2455811.190921632 0.155278477183885 12.1866310934724 6.0493520373218 -42.3741035678416 6416739.96960204 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
2086-Jul-19 06:50 00:01 Jupiter 1.78872752852553 1.78872685200948 1.78872820504167 1.96775576298821 1.71026185751091 2483155.784882399 1.37478045457724 55.5985045357555 5.11166375494691 85.2638385153557 4383207.54399779 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
2097-Feb-25 16:13 00:02 Jupiter 1.5691190935873 1.56911888442773 1.56911930274696 1.40924407159692 0.952026008597406 2487030.175804224 1.6448750969449 56.1123106733541 51.2139344971818 73.7733927057274 6011237.10438514 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
2107-Sep-26 21:49 00:02 Jupiter 1.65749909952521 1.65749834164624 1.657499857404 2.00050492257238 1.72625928106094 2490894.408928094 2.00252264303918 64.2451765475737 4.03777341187767 65.9207682995281 6287980.97353822 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
2118-Apr-19 01:59 00:02 Jupiter 1.96897599718821 1.96897483874579 1.96897715563242 3.76132423341563 3.64516000126893 2494751.582599323 2.18138213489344 113.578137136736 8.42292328925678 -66.5423754666917 6595675.91773879 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41
2193-Feb-25 08:56 00:04 Jupiter 1.72500837446389 1.72500688674594 1.72500986218301 1.75871824539774 1.45294168620836 2522092.872145802 3.58258263159485 155.427866229677 13.2023232723903 71.6489249118318 4523551.91235874 T 39 CATAB v2.0f-lin.ifort 2021-Mar-16 13:41:02 2021-Mar-16 13:41

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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