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7341 (1991 VK)
Classification: Apollo [NEO, PHA]          SPK-ID: 2007341
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 328 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5058778453207323 2.2804e-09  
a 1.842013542157276 3.5508e-10 au
q .9101797003991431 4.1334e-09 au
i 5.412420413259253 1.7075e-06 deg
node 294.7886530656472 1.453e-05 deg
peri 173.4923678356959 1.3349e-05 deg
M 282.9191373987985 9.1326e-07 deg
tp 2459592.015737436992
(2022-Jan-12.51573744)
2.3039e-06 TDB
period 913.1406045814006
2.50
2.6403e-07
7.229e-10
d
yr
n .3942437760338455 1.1399e-10 deg/d
Q 2.773847383915408 5.347e-10 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -5.681011051419091E-15 1.925E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      1641  
   # delay obs. used      10  
   # Doppler obs. used      3  
   data-arc span      10966 days (30.02 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-09-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .33405  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-22 05:49:18  

Additional Information
 Earth MOID = .0472681 au 
 Jupiter MOID = 2.38304 au 
 T_jup = 3.847 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 16.84   n/a MPCxxxxx  
diameter diameter 0.982 km 0.316 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 4.2096 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Vaduvescu, O.; Aznar, A.M.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 22-36.]
geometric albedo albedo 0.235   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
SMASSII spectral type spec_B Sq   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)

7341 (1991 VK)          Discovered 1991-Nov-01 by Helin, E. F., Lawrence, K. J. at Palomar
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
1946-Oct-27 04:13 < 00:01 Earth 0.474293293509918 0.474289925171793 0.474296661848608 23.6943464778633 23.6941093826363 2432120.675538251 0.261083679334054 169.975860654326 3.85592938517745 -8.82775047136359 2575576.79997877 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1951-Nov-03 06:10 < 00:01 Earth 0.354551303621078 0.354548280789756 0.35455432645367 20.0640574502125 20.0636828926576 2433953.756647540 0.252029328689853 154.444924855938 3.76991995867352 -12.5902293124006 2745986.30242939 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1956-Nov-10 05:06 < 00:01 Earth 0.234731037874504 0.234728440622217 0.234733635130326 16.346439792846 16.3457453637909 2435787.712756043 0.260227629387124 137.246379552186 3.67742687302018 -19.3371462347655 2801903.27025222 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1961-Nov-19 14:15 < 00:01 Earth 0.128382873655201 0.12838104440522 0.128384702917508 12.8332132396569 12.8315959149508 2437623.093806302 0.29241947674394 110.732265519327 3.56799740815451 -34.5643227244764 2758355.94923301 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1966-Nov-27 22:06 < 00:01 Earth 0.0788112419792795 0.0788104981335173 0.0788119858427374 10.7711958747431 10.7680566417281 2439457.420927865 0.273762281057826 69.8171696288094 3.4131513423448 -58.02495601178 2772198.18726621 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1971-Dec-04 18:12 < 00:01 Earth 0.065130543697474 0.0651304038134676 0.0651306835872412 9.75087260450392 9.74667619721355 2441290.258542465 0.189373448744342 35.1519844684072 3.22409667641638 -79.8293267838034 2925397.47129075 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1976-Dec-12 07:49 < 00:01 Earth 0.0648554505940371 0.064855377004268 0.0648555241845067 9.06489255169858 9.06035927923644 2443124.825380488 0.134850862456597 17.7048299326958 2.90005950778339 82.5959192088623 3328901.95145554 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1981-Dec-18 12:34 < 00:01 Earth 0.0679726913936934 0.0679726259117334 0.0679727568758389 8.81985990112478 8.81541434939325 2444957.023582817 0.090919072562931 9.6779827102747 2.57120587485933 77.5355151600022 3868105.5665916 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1986-Dec-24 16:59 < 00:01 Earth 0.070333994863453 0.0703339481439973 0.0703340415829288 8.68576108844147 8.68139845953093 2446789.207872465 0.059470564428629 5.34710496169369 2.16195630688865 79.7704773065996 4786222.7550878 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1992-Jan-02 22:36 < 00:01 Earth 0.0739673065759018 0.0739672807036439 0.0739673324481638 8.63980055140298 8.63563019028344 2448624.441503935 0.0372386651060902 3.37654927957837 1.26328475280787 -85.2047773620834 8532132.57187015 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
1997-Jan-10 16:38 < 00:01 Earth 0.0749475781988911 0.0749475637355652 0.0749475926622297 8.67542591315821 8.67132702040156 2450459.193138205 0.0200183535279673 3.29485035724155 0.619091112157597 -83.4372130354732 15073692.013573 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2002-Jan-16 11:51 < 00:01 Earth 0.0718491715489757 0.0718491601118231 0.0718491829861364 8.66557158582212 8.6612910251624 2452290.994071979 0.00857619364864549 3.51905605520795 0.534169451680328 -86.7098433922964 16031918.2037501 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2007-Jan-21 12:03 < 00:01 Earth 0.0679289632294079 0.0679289523034961 0.0679289741553198 8.66977379035598 8.66524832790091 2454122.001839369 0.00465753936372173 3.63785477359245 0.541461507787599 89.058653696286 15138814.2149499 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2012-Jan-25 23:47 < 00:01 Earth 0.0650381978448039 0.0650381836492563 0.0650382120403773 8.73080140102713 8.72610779642806 2455952.491169957 0.00542738846987651 3.67322609683468 0.592949399039311 83.8840133760933 13558704.5108986 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2017-Jan-25 12:51 < 00:01 Earth 0.064709110837626 0.06470909494333 0.0647091267319478 8.7289950326009 8.72427657482519 2457779.035695496 0.00658192635322142 3.58809326100509 0.643616162090199 82.4765294889061 12920357.1396683 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2022-Jan-25 17:09 < 00:01 Earth 0.0639771125462018 0.063977094008304 0.0639771310841178 8.71160424610713 8.70682225464006 2459605.214846788 0.0114373546046374 3.50497609460525 0.796838703325068 82.1142411060288 11062094.3142035 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2027-Jan-22 03:02 < 00:01 Earth 0.0681320349128399 0.0681320169001105 0.0681320529255693 8.70331173902313 8.6988171642394 2461427.626474472 0.0213729613631629 3.60567967437331 0.898069121238242 89.7617854288244 10693427.6982105 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2032-Jan-16 17:15 < 00:01 Earth 0.0730760399495054 0.0730760235216582 0.073076056377365 8.68620422776816 8.68200555245231 2463248.218840736 0.0356397476188013 3.7498782305822 0.743573488924758 -84.6327281208775 13066750.5992656 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2037-Jan-11 19:51 < 00:01 Earth 0.0732191218190622 0.07321910722161 0.0732191364165395 8.63688875869158 8.63267435158156 2465070.326802460 0.0513614532949351 3.88004895553135 0.608070745731993 -84.0084452398098 14419475.4761198 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2042-Jan-06 13:58 < 00:01 Earth 0.0734955476016678 0.0734955316355452 0.0734955635677904 8.63509332211398 8.63089389636006 2466891.082095226 0.0684472958922809 4.34703576628313 0.789328326496114 -88.6142536405913 12190933.3486296 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2046-Dec-31 02:27 < 00:01 Earth 0.0734544408205116 0.0734544068728999 0.0734544747681692 8.64455329353974 8.64035611747314 2468710.602134706 0.0883234733875035 5.90557302475921 1.45199218361281 81.2549168792005 7054228.71672186 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2051-Dec-25 18:07 < 00:01 Earth 0.0714389537187062 0.0714388966487938 0.0714390107888176 8.69688692143686 8.69259728419924 2470531.254939792 0.110628220740487 8.68326035836774 1.968702359157 75.9330299332676 5151975.56947097 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2056-Dec-21 13:13 < 00:01 Earth 0.0702296834598357 0.0702296056265621 0.0702297612936641 8.77556311745763 8.77123873925498 2472354.050954193 0.142588537500743 12.6753890296374 2.24871661132435 75.3055524537951 4430291.70786279 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2061-Dec-13 07:01 < 00:01 Earth 0.0651112869479253 0.0651111990384819 0.0651113748589639 9.02830025728388 9.02376649085428 2474171.792678548 0.173617349685635 21.4994109540039 2.82568047015674 80.9455659391305 3420606.8229532 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2066-Dec-05 06:39 < 00:01 Earth 0.0641151248890031 0.0641149869530594 0.064115262832615 9.6990805774573 9.69479492196675 2475989.776826398 0.225322456099328 40.1941134429932 3.22783888528584 -81.2877813797159 2908219.6439624 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2071-Nov-29 13:34 < 00:01 Earth 0.0756090142340427 0.0756082247643475 0.0756098037279822 10.5838827777201 10.5805526408096 2477810.065081344 0.32276561761541 78.3880499115131 3.43716659285001 -59.9560828777108 2717884.95494214 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2076-Nov-20 05:10 < 00:01 Earth 0.127690508662488 0.127688426709609 0.127692590631176 12.7668800652124 12.7652455206563 2479627.715155100 0.337399260567107 125.715612588046 3.60509017388327 -34.351787583135 2705580.91140229 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2081-Nov-12 15:14 < 00:01 Earth 0.216824449993502 0.216821543379929 0.216827356612719 15.7246673364868 15.7238858284849 2481446.134384957 0.308112051183995 155.078558914424 3.68688016500167 -20.8441775633096 2777589.90038684 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2086-Nov-05 23:19 < 00:01 Earth 0.319008193250905 0.31900481292822 0.319011573575856 18.9584064552156 18.9579658864183 2483265.471475682 0.296378842206778 173.818120917985 3.73527959736685 -14.133508947049 2779740.51365316 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2091-Oct-30 11:47 < 00:01 Earth 0.429199438728618 0.429195743775808 0.429203133682429 22.3783553197094 22.3780779061159 2485084.990672864 0.2954283433217 187.152708543151 3.78529874776674 -10.1067771578364 2694460.69171839 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2169-Mar-20 11:03 < 00:01 Earth 0.369154219844875 0.369145376512149 0.369163063186099 20.6016300156043 20.6012796619683 2513349.960421434 0.739074568784973 449.725536091684 2.13019555838388 11.3222747257594 4544045.72694216 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2174-Mar-13 01:43 < 00:01 Earth 0.246512025598453 0.246503111016937 0.24652094020529 16.8923000569214 16.8916601840691 2515168.571488577 0.881878833905448 461.668578281699 2.09111122148353 15.6657296599134 4208208.14918254 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2179-Mar-06 04:28 00:01 Earth 0.156672298745784 0.156664180938145 0.156680416628542 13.9710552920774 13.9698379578003 2516987.686347468 1.04442827719278 439.473391796305 1.98911387925411 22.9198145075816 4064474.25519413 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2184-Feb-26 15:25 00:01 Earth 0.0876306363403674 0.0876250980503158 0.0876361748619414 11.5750128655438 11.5723857196145 2518806.142176555 1.22147649363398 356.001516913524 1.81677459703775 39.1342228688097 4145696.22267682 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2189-Feb-18 23:18 00:01 Earth 0.0566882474348269 0.056686490329622 0.0566900047993765 10.1766214479961 10.1720017424813 2520625.470536216 1.04739347023911 210.392347335809 1.61480010993309 65.3992742951237 4499802.73213139 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2194-Feb-17 07:33 < 00:01 Earth 0.0528476922735557 0.0528469168800217 0.0528484678318195 9.87998539946611 9.87488102852691 2522449.814914241 0.847016564018031 152.271597399034 1.49619580854439 75.3073774289225 4829222.81879449 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49
2199-Feb-20 17:00 < 00:01 Earth 0.0590765830876944 0.05907484481029 0.0590783215737251 10.3306537543844 10.3262869777213 2524279.208447820 0.933289297753137 195.410831954214 1.5856673827337 63.6778637375244 4657022.68017329 T 328 CATAB v2.0g-lin.ifort 2021-Sep-22 05:49:27 2021-Sep-22 05:49

Alternate Designations
 1991 VK = 1981 UX12 = 1991 TS1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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