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2397 Lappajarvi (1938 DV)
Classification: Main-belt Asteroid          SPK-ID: 2002397
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1782780472965373 1.9039e-08  
a 3.083517148196103 1.2788e-08 au
q 2.533793732210315 5.9341e-08 au
i 10.30906907095364 2.2211e-07 deg
node 145.7731983406774 2.638e-06 deg
peri 296.9000488719355 6.4132e-06 deg
M 161.5193074854487 8.0384e-06 deg
tp 2458313.160280612386
(2018-Jul-13.66028061)
4.13e-05 TDB
period 1977.73445139566
5.41
1.2303e-05
3.368e-08
d
yr
n .1820264594905311 1.1323e-09 deg/d
Q 3.633240564181892 1.5068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3033  
   data-arc span      21391 days (58.57 yr)  
   first obs. used      1962-08-03  
   last obs. used      2021-02-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42536  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:43:54  

Additional Information
 Earth MOID = 1.56964 au 
 Jupiter MOID = 1.6765 au 
 T_jup = 3.178 
[ 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 11.17   n/a E2021B10  
diameter diameter 16.361 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.044 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Bennefeld, C.; Cantue, J.; Holly, V.; Jordon, L.; Martin, T.; Soar, E.; Swinney, T. (2009) Minor Planet Bull. 36, 45-48.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.263   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2397 Lappajarvi (1938 DV)          Discovered 1938-Feb-22 by Vaisala, Y. at Turku
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
1902-Nov-03 00:41 00:02 Jupiter 1.7684293728391 1.76842851731078 1.76843022837597 3.31692184242539 3.16923222406577 2416056.528566701 2.26095997028678 204.850112654002 5.33798935240557 81.5366298834765 14051673.7267883 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
1912-Aug-16 18:50 00:02 Jupiter 1.82891012154492 1.8289093644002 1.82891087869505 1.58406208130328 1.25817064428588 2419631.284888100 2.30082297395856 187.836095396266 34.1318413060805 68.9077592281297 4569331.69494578 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
1962-Dec-25 22:05 00:01 Jupiter 1.95824184971734 1.958241194093 1.95824250534268 4.10948370798827 4.00284544631335 2438024.420481559 1.02651792704014 79.4242551206681 6.98617565025421 68.7789386889971 10605634.9357148 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
1972-Nov-09 21:20 < 00:01 Jupiter 1.70164073690786 1.70164056470788 1.70164090910783 2.23453657206796 1.99940427407752 2441631.388606844 0.8849349829973 57.8184032342033 8.63162425845563 -70.223059924485 17867915.3299521 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
2033-Jan-11 16:57 < 00:01 Jupiter 1.70149410616448 1.70149397714985 1.70149423517911 3.00128284028798 2.83056119060081 2463609.205938594 0.386949570854184 31.5698197953943 5.20246728370419 -87.0099408965147 14860235.1411077 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
2042-Oct-18 06:57 < 00:01 Jupiter 1.9097564721515 1.9097561420922 1.90975680221124 1.72360742387119 1.44352862288744 2467175.789693892 0.656059808070597 59.8976912813972 17.1436626329543 -86.389578441279 5599949.40690403 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
2093-Mar-10 09:36 00:02 Jupiter 1.85570468045157 1.85570395067731 1.85570541022888 3.69265042499261 3.56690091417397 2485581.899959225 1.58336516073199 129.611430208373 6.01052134227828 76.0621207927279 12215398.753735 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
2103-Jan-18 20:45 00:02 Jupiter 1.73397658184525 1.73397595226006 1.73397721143083 2.06769430912612 1.81614664828586 2489182.364782378 1.92184488767285 71.7697290185334 21.3700916311422 -24.3112043606286 8146566.86937067 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
2163-Mar-29 05:21 00:03 Jupiter 1.66389145152812 1.66389129309592 1.66389160996363 2.77033734043838 2.58004780215187 2511166.722859041 3.00977398301378 264.920305456017 5.66309352448987 -86.392312550474 14975522.2912413 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46
2172-Dec-27 14:09 00:04 Jupiter 1.99770460983671 1.99770303456341 1.99770618512103 2.00743344599329 1.78375819224723 2514728.089496078 3.51380579945145 272.873427014346 5.43129193858096 -88.8159945270548 6368084.07161618 T 42 CATAB v2.0f-lin.ifort 2021-Apr-12 13:46:01 2021-Apr-12 13:46

Alternate Designations
 1938 DV = 1932 AF = 1962 QG = 1972 LF1 = 1976 GK4 = 1978 PR = 1981 CF1 = 1981 FS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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