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383 Janina (A894 BC)
Classification: Main-belt Asteroid          SPK-ID: 2000383
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1675172798086404 3.2138e-08  
a 3.13761833574103 1.0779e-08 au
q 2.61201304705998 1.0308e-07 au
i 2.659583296233501 3.4453e-06 deg
node 92.77943256700182 8.0868e-05 deg
peri 324.4957424025814 8.1537e-05 deg
M 322.1001009886641 1.0068e-05 deg
tp 2459214.214579371569
(2020-Dec-30.71457937)
5.6816e-05 TDB
period 2030.011967861787
5.56
1.0461e-05
2.864e-08
d
yr
n .1773388559768878 9.1389e-10 deg/d
Q 3.663223624422081 1.2585e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3574  
   data-arc span      46291 days (126.74 yr)  
   first obs. used      1894-01-30  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:30:12  

Additional Information
 Earth MOID = 1.62473 au 
 Jupiter MOID = 1.68628 au 
 T_jup = 3.188 
[ 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 9.9   n/a MPO502156 IRAS observations used: 10
diameter diameter 43.482 km 0.475 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.4 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Tedesco, E.F. (1979) PhD Dissertation, New. Mex. State Univ. 280pp.]
geometric albedo albedo 0.040   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.682   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=4.18, mean=11.79, max.=18.24) deg.
U-B UB 0.352   0.042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=4.18, mean=11.79, max.=18.24) deg.
Tholen spectral type spec_T B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

383 Janina (A894 BC)          Discovered 1894-Jan-29 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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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
1913-Aug-12 07:27 00:02 Jupiter 1.81869773794058 1.81869717156867 1.8186983043125 2.42060635348014 2.21988167668664 2419991.810436078 1.57125207927284 55.2377878764995 4.80035291232841 86.831428924331 2343678.94308375 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
1923-Dec-09 03:44 00:01 Jupiter 1.71291355525087 1.71291322779763 1.71291388270391 1.64746714518145 1.31345477664685 2423762.655385071 1.3585257537953 72.1281609338082 39.8104105745191 87.7232718185492 2900305.13559958 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
1934-Apr-14 17:16 00:01 Jupiter 1.91256528279732 1.91256471242886 1.91256585316621 2.22046476479484 2.01114863361396 2427542.219683621 1.16297980632453 77.6646072187303 3.97214938125296 88.7730204168887 3112383.02351352 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
1997-Feb-02 08:49 < 00:01 Jupiter 1.87473904301051 1.87473867198304 1.87473941403787 2.78494962155605 2.61769515956197 2450481.867403794 0.344693041418802 36.7902671043209 9.34254199821198 84.8702852453303 3444693.85500348 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
2007-May-29 21:11 < 00:01 Jupiter 1.69979883243336 1.69979853787468 1.69979912699185 1.68543233803405 1.3579643424496 2454250.382448116 0.224439367631836 62.6322699841359 36.0353426067902 84.3196575656432 2915548.29092383 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
2017-Oct-01 18:34 < 00:01 Jupiter 1.84989629863116 1.84989594605009 1.84989665121212 1.99777560393984 1.75366930016838 2458028.273832361 0.227829705446217 54.2868027402181 9.28406130438782 -89.0019045425259 3208906.96616637 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
2080-Jul-24 20:55 < 00:01 Jupiter 1.92666592831141 1.92666541376097 1.92666644286185 3.17739204390074 3.03587841267515 2480970.371805580 0.999213934151054 47.1468629730931 13.0387318097961 77.7789861793392 2868836.81606855 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
2090-Nov-17 22:50 00:01 Jupiter 1.70163062641699 1.70163027746467 1.70163097536912 1.782904403891 1.47756757953002 2484738.451698745 1.19119744079251 59.860822956736 35.0313979075872 -80.3455289298647 2388048.56989108 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
2101-Mar-21 19:29 00:01 Jupiter 1.78800997656549 1.7880094827382 1.78801047039308 1.81605053102033 1.5331641592437 2488514.311886900 1.35876461613888 87.051940007493 20.2791573288922 -88.0486914619951 2875474.85666647 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
2164-Jan-15 18:22 00:02 Jupiter 1.99721398527998 1.99721306019579 1.9972149103652 3.65591806503301 3.53801255338542 2511459.264998422 2.21740581180532 95.3743521984436 15.2771956786422 71.1093562792286 3056367.10482893 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
2174-May-12 06:42 00:02 Jupiter 1.72720385646787 1.72720323548746 1.72720447744828 1.96895710075482 1.70176086583053 2515228.779476580 2.47203662136703 81.3016698899461 23.4530657511238 -71.9074085520908 1929317.73158854 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30
2184-Sep-07 20:48 00:03 Jupiter 1.7398453165672 1.73984465753235 1.73984597560255 1.70459059881651 1.389947284113 2519000.366841615 2.60884025107782 100.791621873167 32.4182962058167 -86.5405101220399 2560378.941561 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:30:22 2020-Nov-13 04:30

Alternate Designations
 A894 BC = 1925 QC = 1936 QQ1 = 1936 RO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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