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85867 (1999 BY9)
Classification: Amor [NEO]          SPK-ID: 2085867
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 161 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3023714665163753 4.874e-08  
a 1.829753696536398 4.8934e-09 au
q 1.276488387950929 8.631e-08 au
i .9440573983132159 3.1072e-06 deg
node 254.3909916358359 0.00019189 deg
peri 287.4296044864287 0.0001922 deg
M 187.1429287001815 1.1215e-05 deg
tp 2459434.582248911292
(2021-Aug-08.08224891)
2.9706e-05 TDB
period 904.039438091702
2.48
3.6265e-06
9.929e-09
d
yr
n .3982127159849448 1.5974e-09 deg/d
Q 2.383019005121867 6.373e-09 au
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      9198 days (25.18 yr)  
   first obs. used      1995-09-19  
   last obs. used      2020-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-25 05:21:47  

Additional Information
 Earth MOID = .279811 au 
 Jupiter MOID = 2.57835 au 
 T_jup = 3.974 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456372.5 (2013-Mar-21.0) TDB
Reference: JPL 161 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3024635242970147 4.8844e-08  
q 1.276522712940894 8.6423e-08 au
tp 2456721.716014986476
(2014-Mar-05.21601499)
2.0516e-05 TDB
node 254.4712014769072 0.00019197 deg
peri 287.3648748607938 0.00019229 deg
i .9436489052089048 3.1071e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      9198 days (25.18 yr)  
   first obs. used      1995-09-19  
   last obs. used      2020-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-25 05:21:47  

Additional Information
 Jupiter MOID = 2.57835 au 
 T_jup = 3.974 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.385700307342655E-15 -4.220263012983993E-15 6.894621041565298E-13 -5.597274357439685E-15 2.673393519504841E-13 -6.536451407534596E-15
q -4.220263012983993E-15 7.468905968041336E-15 -1.207308019242581E-12 7.909117581302047E-15 -4.664819286457845E-13 1.152223594836217E-14
tp 6.894621041565298E-13 -1.207308019242581E-12 4.209008644769806E-10 -2.54350449228098E-11 2.22820321822166E-10 -1.802677142671775E-12
node -5.597274357439685E-15 7.909117581302047E-15 -2.54350449228098E-11 3.68542722393966E-8 -3.686274863129033E-8 -8.651401215568951E-11
peri 2.673393519504841E-13 -4.664819286457845E-13 2.22820321822166E-10 -3.686274863129033E-8 3.697448305326121E-8 8.589149573599776E-11
i -6.536451407534596E-15 1.152223594836217E-14 -1.802677142671775E-12 -8.651401215568951E-11 8.589149573599776E-11 9.654149699553521E-12

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 18.1   n/a MPO474744  
rotation period rot_per 700. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]

85867 (1999 BY9)          Discovered 1999-Jan-23 by Korlevic, K. at Visnjan
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1900-Feb-26 16:07 < 00:01 Earth 0.351177200304562 0.351174382184713 0.351180018423572 0.747236768985765 0.737013046874452 2415077.171448724 0.863403769487752 140.8107062318 9.13400060337025 -38.2654549748521 307561.005192563 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
1905-Mar-25 18:56 < 00:01 Earth 0.280497705055019 0.280497542154024 0.280497867958708 0.268449564615335 0.230362634040795 2416930.289079035 0.794823996700476 189.363395011331 70.1871173171636 54.7468935757789 231573.923144303 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
1910-Apr-22 02:37 < 00:01 Earth 0.365988129284571 0.365985508411451 0.365990750157379 0.856982407176673 0.848444681508828 2418783.609099670 0.837314046077403 131.126899449961 25.4541767814632 -28.6797272999454 130942.488621293 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
1947-Feb-01 07:15 < 00:01 Earth 0.495140999029786 0.495139015653482 0.495142982406316 3.30879913202062 3.30717238568567 2432217.802139134 0.463723156676431 100.188892632209 12.3878043808358 -10.211342691473 355063.114281587 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
1952-Feb-27 09:59 < 00:01 Earth 0.355150617057641 0.355148859750687 0.355152374364171 0.80787170375936 0.798531091860702 2434069.915716347 0.52641565480215 86.9773365418434 9.55608286650559 -34.6997223876428 288705.885433216 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
1957-Mar-26 00:22 < 00:01 Earth 0.280315806490388 0.280315589842445 0.28031602314096 0.264678992442028 0.225930111761575 2435923.514939924 0.448336260488633 145.71729181639 53.6909157347224 23.4013516925091 197351.645798027 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
1962-Apr-22 02:01 < 00:01 Earth 0.36329024073841 0.36328892985594 0.363291551621025 0.825968304153418 0.817040415756785 2437776.584062421 0.454918689105524 69.3640000138019 25.6331916683516 -37.647986580097 165619.987435245 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2004-Feb-26 22:17 < 00:01 Earth 0.360586175387964 0.360585908967149 0.360586441808696 0.889225763176345 0.880876755502985 2453062.428615607 0.0596240634225791 12.0616929101023 10.2610402407131 -49.9198594986769 411767.776161324 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2007-Jan-04 01:23 < 00:01 Mars 0.0842182251684184 0.0842175065485452 0.0842189437883299 7.62905110758266 7.62860551057983 2454104.557797330 0.0474659883340028 35.961622827048 12.1114089802464 5.10576137375265 373442.087454168 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2009-Mar-25 11:04 < 00:01 Earth 0.281271755391856 0.281271493359073 0.281272017435671 0.245267567758882 0.20300304600483 2454915.961012384 0.0285918315673453 174.507572694378 76.3608900201737 -17.8660089232445 164190.835631169 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2014-Apr-21 05:38 < 00:01 Earth 0.355416900023254 0.355416548037924 0.355417252009493 0.736231606563972 0.725977572117177 2456768.734761320 0.0411156847413119 50.9251891891716 9.28480457635848 -78.9203611783255 317574.047630138 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2051-Feb-02 23:37 < 00:01 Earth 0.493553903243256 0.493552362510416 0.493555443976293 3.28051115361376 3.27886509529238 2470205.484313665 0.353766488673454 78.3656942790546 12.3362191650036 -12.2465806352205 457590.729544448 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2054-Jan-22 12:48 < 00:01 Mars 0.0365700272234131 0.0365681082156523 0.0365719462534146 9.42644174927347 9.425611225158 2471290.033512216 0.306416625115232 105.892566385779 12.1944914233106 -25.5365632601682 196014.938128065 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2056-Feb-29 12:47 < 00:01 Earth 0.352931715029086 0.352930433915947 0.352932996142868 0.746789137635749 0.736610409290853 2472058.032519733 0.436257000463224 69.8308200328528 8.77587121736916 -43.6509064235559 373004.407834348 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2061-Mar-27 01:27 < 00:01 Earth 0.281379592123429 0.281379286802889 0.281379897466713 0.265130210067829 0.22661717958204 2473910.560263918 0.378209379655689 146.558127874503 91.3912553126495 -66.2554666740233 197736.355452924 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2066-Apr-22 12:52 < 00:01 Earth 0.358464101198636 0.35846255066696 0.358465651734205 0.793620060344759 0.784198133595 2475763.035841356 0.398149173226378 102.01742032755 21.3887285690494 -51.9748842015757 182376.377576264 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2071-May-18 02:47 < 00:01 Earth 0.497736432346007 0.497734820508055 0.497738044183959 2.97048865170026 2.96868597922862 2477614.615910119 0.3255242891177 80.4172453499389 11.2882553619136 -5.20229733254089 294099.848102689 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2075-Sep-29 08:54 < 00:01 Mars 0.0676347141620018 0.0676329255429952 0.0676365028453668 8.26166016580009 8.26114779700941 2479209.870573081 0.368672716927504 137.998972122272 13.7622079128661 -50.0736137271977 576124.38645294 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2108-Feb-25 13:48 < 00:01 Earth 0.379841508450118 0.379839946305613 0.379843070595701 1.19285710802844 1.18696194264047 2491046.075234069 0.481071816556106 84.580951873233 10.0574918957541 -29.6112778051591 417316.398707032 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2113-Mar-23 08:46 < 00:01 Earth 0.284724717432974 0.28472449977659 0.28472493509376 0.214503285822887 0.165213440696353 2492898.864946228 0.426258500745841 318.412196696365 97.433507620368 4.66688621219928 127023.094610394 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2118-Apr-17 22:32 < 00:01 Earth 0.329366695252282 0.329365138637304 0.329368252264547 0.454069298831573 0.435889342068166 2494750.438702008 0.44791472930502 602.598336947483 7.5027929040329 -87.6249990626564 182755.878678312 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2123-May-14 17:46 < 00:01 Earth 0.467770390092777 0.467768551715889 0.467772228469666 2.47277275103251 2.47046813886594 2496603.239992242 0.394918611193028 91.6496765581656 10.7857246725677 -6.2834684030013 245889.15507938 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2155-Aug-09 12:14 < 00:01 Mars 0.0797097193138327 0.0797073490510826 0.0797120895798362 7.68738161271013 7.68691438384601 2508378.009689627 0.503148533153376 120.920505057387 12.3930917920207 12.2466937028115 236311.913433225 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2160-Feb-19 15:57 < 00:01 Earth 0.413386452320648 0.413384749029566 0.413388155612622 1.78858399345261 1.78497667109306 2510033.164305056 0.478687937556812 90.4024859774835 10.486252548 -22.720722590023 456021.420701011 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2165-Mar-18 01:46 < 00:01 Earth 0.295813264704648 0.295812613522814 0.295813915923668 0.115362156452245 n/a 2511886.573926384 0.432215261621045 170.272914234004 4.69986310418283 -79.1187659789128 9245286.95858727 F 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2170-Apr-13 02:53 < 00:01 Earth 0.309310661960585 0.30930940621241 0.309311922733369 0.315564310987838 0.286970964693456 2513738.620120263 0.413460585773729 2082.9555110853 57.4536054439966 89.6463066052415 160669.044110546 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2175-May-09 23:04 < 00:01 Earth 0.436683552558509 0.436681870997604 0.436685234119365 1.9639290209057 1.96081971351217 2515591.460860496 0.376399121451442 83.6106857728258 10.83038222764 -7.95101805613611 229797.179526218 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
2177-Apr-17 12:12 < 00:01 Mars 0.0781758690154854 0.0781737582162859 0.078177979858105 9.75926884196016 9.75889358864567 2516300.008007469 0.286014769157652 140.206653480061 13.3716498744064 41.5778949581942 571469.994606178 T 161 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:49 2020-Nov-25 05:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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