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3291 Dunlap (1982 VX3)
Classification: Main-belt Asteroid          SPK-ID: 2003291
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026988554988479 1.9931e-08  
a 3.147424259720202 1.3982e-08 au
q 2.824187390477628 6.4334e-08 au
i 2.007114240707975 8.8802e-07 deg
node 151.2356622439407 2.1034e-05 deg
peri 161.9116428760362 2.3342e-05 deg
M 22.91942795795039 1.1471e-05 deg
tp 2459070.652787156792
(2020-Aug-09.15278716)
6.5024e-05 TDB
period 2039.535921634537
5.58
1.359e-05
3.721e-08
d
yr
n .1765107425573004 1.1761e-09 deg/d
Q 3.470661128962775 1.5417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2793  
   data-arc span      24576 days (67.29 yr)  
   first obs. used      1953-10-01  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:56:55  

Additional Information
 Earth MOID = 1.80824 au 
 Jupiter MOID = 1.77386 au 
 T_jup = 3.200 
[ 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 12.71   n/a E2021B10  
diameter diameter 22.496 km 2.454 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.051   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3291 Dunlap (1982 VX3)          Discovered 1982-Nov-14 by Kosai, H. and Hurukawa, K. at Kiso Station
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
1967-Apr-21 18:03 00:01 Jupiter 1.87898764690294 1.87898735974893 1.87898793405706 2.62619606958178 2.44853681487311 2439602.251942476 1.01794241813562 31.4625740567868 5.26190021333052 -75.0037163129038 6429847.92561307 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
1977-Nov-06 14:24 < 00:01 Jupiter 1.81147816431663 1.81147794988089 1.81147837875236 2.69813561236825 2.51888130517182 2443454.100257376 0.786108141446285 11.0554588498227 5.85961242366507 72.4583015428538 5987093.50428682 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
1988-May-18 19:14 < 00:01 Jupiter 1.89081333013655 1.89081310273957 1.89081355753352 3.44820478963519 3.31574753324778 2447300.301088525 0.54669935036093 21.8921509556178 8.39002605848504 -87.2094072376903 6471717.11417303 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
2062-Sep-24 12:58 00:01 Jupiter 1.93034367143944 1.93034338803003 1.93034395484907 2.73823026247095 2.57299780523844 2474457.039990214 1.02244808642211 41.4798088073905 5.13571485637482 -79.9576034356384 6613087.22764504 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
2073-Apr-16 06:37 00:01 Jupiter 1.82605560878509 1.82605541804262 1.82605579952757 2.60889521591061 2.42458800629962 2478313.775901441 1.29548827522464 16.5700602467146 4.88323472914954 -81.2392103138555 6248791.37097706 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
2083-Oct-29 17:24 00:02 Jupiter 1.8595082989091 1.85950792385045 1.85950867396797 3.15421991763069 3.00634089261542 2482162.224953753 1.5439257822046 44.9186537474685 7.08791651389759 -78.9592750903941 6259182.52180209 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
2158-Mar-02 00:32 00:03 Jupiter 1.98802739663128 1.98802663848908 1.9880281547763 2.89702057190589 2.74601613507534 2509313.522335452 3.00777213293216 134.00167222987 6.03379666423733 -78.6383046768332 6731475.89694709 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
2168-Sep-25 09:49 00:03 Jupiter 1.85279990907754 1.85279951807596 1.85280030008006 2.58711127805142 2.40391941171445 2513173.908793886 3.33633613775917 82.2000873226983 4.64515659690723 -78.1928435423234 6514216.37666012 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
2179-Apr-12 16:11 00:04 Jupiter 1.83990613034468 1.83990570764834 1.83990655304123 2.90635838725036 2.7433912336494 2517025.174222923 3.63308062831929 50.5039521263117 6.17155349948082 -86.5041847620694 5530231.11377396 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57
2189-Oct-28 03:40 00:04 Jupiter 1.94853994773061 1.94853901403358 1.94854088143262 3.80458876068511 3.68856390051522 2520876.652739529 3.81279156327272 168.699868653892 8.57680849786194 -78.000756417173 7006054.58125669 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 14:57:56 2021-Apr-12 14:57

Alternate Designations
 1982 VX3 = 1974 HE2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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