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496816 (1989 UP)
Classification: Apollo [NEO, PHA]          SPK-ID: 2496816
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 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4720010518507181 1.605e-08  
a 1.861084749399099 1.5952e-09 au
q .9826507900993943 3.0303e-08 au
i 3.855176766369165 3.0933e-06 deg
node 53.17385078115068 2.9071e-05 deg
peri 17.83869432580409 2.9017e-05 deg
M 355.492251659054 2.8843e-06 deg
tp 2459012.111940820248
(2020-Jun-11.61194082)
7.4344e-06 TDB
period 927.3584901174548
2.54
1.1923e-06
3.264e-09
d
yr
n .3881993898113815 4.991e-10 deg/d
Q 2.739518708698804 2.3481e-09 au
  Orbit Determination Parameters
   # obs. used (total)      344  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      10387 days (28.44 yr)  
   first obs. used      1989-10-27  
   last obs. used      2018-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41423  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-06 06:25:12  

Additional Information
 Earth MOID = .00625464 au 
 Jupiter MOID = 2.58151 au 
 T_jup = 3.848 
[ 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 20.5   n/a MPO437864  
diameter diameter 0.3 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)
rotation period rot_per 6.98 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]

496816 (1989 UP)          Discovered 1989-Oct-27 by Rabinowitz, D. L., Scotti, J. V. at Steward
Reference: Last Updated: 2017-10-09

[ 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
1910-Oct-01 06:51 00:07 Earth 0.423478115744869 0.42339212720703 0.423564104371172 19.7555069909367 19.755188500273 2418945.785681861 7.22843505450777 4298.75355412296 4.33808523532849 4.08823555488982 904011.051195829 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
1915-Dec-29 07:02 00:24 Earth 0.0806093281378963 0.0805252834243441 0.0806934080973898 8.64797471953239 8.64415168122661 2420860.792715467 24.2654066477251 4963.82836869486 7.92069081406922 -32.4110487110121 678475.225264477 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
1928-Jun-17 14:27 00:04 Mars 0.0706925787983429 0.0706615075111228 0.0707236643554196 12.9186433634148 12.9183298755583 2425415.102385095 3.55008007445983 2215.9166755466 7.3329064055741 45.6238618751753 1018265.47540609 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
1938-Nov-18 23:08 < 00:01 Earth 0.00519873529572206 0.00519862852199619 0.00519884207918601 6.88865618805663 6.8138487675764 2429221.463763302 0.219582385248446 13.7219757168378 2.40484200444078 -69.433690649061 295819.537582888 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
1938-Nov-19 07:54 < 00:01 Moon 0.00693654979788957 0.00693646579157524 0.00693663380797456 7.44830620906278 7.44767184841407 2429221.829488923 0.218838335809451 10.4113548543927 2.23283536953508 -69.6000401067122 440883.03158736 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
1961-Oct-03 12:49 < 00:01 Earth 0.402543337944397 0.402542131676743 0.402544544212074 19.1433424191777 19.142996650326 2437576.033953862 0.12158861540939 60.3399585008676 3.73633657527391 4.55264805285757 1398267.93430956 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
1966-Dec-29 20:01 < 00:01 Earth 0.0772418910641223 0.0772407629818051 0.0772430191536271 8.52600226727754 8.52195541738283 2439489.333840701 0.341990610170005 67.665330590702 8.62657400802721 -34.1053838959431 659944.344730086 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
1989-Nov-03 09:51 < 00:01 Earth 0.049478788040174 0.0494784950224297 0.0494790810579211 8.28543313902542 8.27893111564272 2447833.910629944 0.0808942883099684 14.6194218006552 4.03541994750631 2.37745298211142 461675.242932614 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
1995-Jan-26 20:40 < 00:01 Earth 0.384597670607356 0.384597338360097 0.384598002854637 18.5649767736823 18.564603596001 2449744.360869263 0.0411659424655929 17.2115560345561 9.95341161746848 -19.4012449745464 3233503.00203596 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2007-Jun-24 22:21 < 00:01 Mars 0.0801513422751605 0.0801510923726771 0.0801515921777942 10.9361543280502 10.935827712211 2454276.430972551 0.0291870619781747 14.7407063870151 8.91614164589659 -42.1252563984453 1105479.96295433 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2017-Nov-02 16:25 < 00:01 Earth 0.0549387154603685 0.0549386255566925 0.0549388053640475 8.45571093509331 8.44997332412613 2458060.184233670 0.0367622641062583 4.64573334770322 3.81549617244304 -27.3624024079023 1834861.2059243 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2023-Jan-23 12:21 < 00:01 Earth 0.325506464787772 0.325506227457444 0.325506702118119 16.7129662503349 16.7124764652385 2459968.014684123 0.0378417406161826 13.4215475946491 8.82329795128075 -38.7549362983817 4102104.45686901 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2038-Jul-31 20:09 < 00:01 Mars 0.0549938233552548 0.0549935346243629 0.0549941120891384 11.7292799843306 11.7288361415744 2465636.339902712 0.0519587066734575 29.8647623419531 9.1342905673459 66.956872880022 838003.006547109 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2045-Oct-04 09:54 < 00:01 Earth 0.403732668463592 0.403732078205364 0.403733258721821 19.1956269114845 19.1952831002581 2468257.912357588 0.0783944468899877 29.6524538890065 3.51699689755702 7.02387945927333 2481709.0455141 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2050-Dec-08 08:33 < 00:01 Earth 0.0267263288654404 0.0267260635593332 0.0267265941736639 6.6616203535277 6.64663793850628 2470148.855961386 0.348614970063066 18.6347692530264 5.63503246742997 -47.6466773064163 521595.219166559 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2073-Oct-01 13:32 < 00:01 Earth 0.460274157950951 0.460272420098819 0.460275895803135 20.8616195951194 20.8613421030146 2478482.063786556 0.159545611090521 87.0067921198333 2.94550117525122 5.13443789029188 1923024.40937021 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2078-Dec-13 13:36 < 00:01 Earth 0.0325655003944708 0.0325648534771259 0.0325661473381796 6.8340586492022 6.82207589061561 2480381.066924726 0.871480138675944 56.5499410638649 2.99693837054263 -55.356416578444 1349367.44019568 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2081-Nov-01 04:56 < 00:01 Mars 0.0706733343508667 0.0706718423280938 0.0706748263981454 11.3179803104699 11.3176223883507 2481434.705471430 0.186969461000593 99.5637435392187 9.44270970178151 41.8755327110481 759924.013997566 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2093-Dec-29 06:27 < 00:01 Mars 0.0466001302451497 0.0465987168182294 0.0466015439093197 11.7683790880397 11.7678570381126 2485875.768907212 0.318770387368316 181.315291587166 8.58153015209697 -67.275186380283 753193.349931697 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2101-Oct-22 11:25 < 00:01 Earth 0.159265514616997 0.159260071713251 0.15927095752192 11.8607644360506 11.8593538364615 2488728.975398112 0.723216509325161 272.273074108705 2.90177731461048 4.62228832773846 545691.804805068 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2107-Jan-25 14:46 < 00:01 Earth 0.328189850775915 0.328184124749711 0.328195576806167 16.7910040703531 16.7905205477324 2490650.115169891 0.495135286120921 291.261203538152 6.04760078873868 -11.3934626409873 1388737.62857716 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2124-Sep-30 22:11 < 00:01 Earth 0.491207144004458 0.491202762385972 0.491211525623139 21.8197413000901 21.8194927004136 2497108.423958379 0.369611457748945 219.013139251747 3.20922758339976 3.96042876931238 1412957.84899268 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2129-Dec-20 23:36 00:01 Earth 0.0424411477346846 0.0424393860138584 0.0424429095619842 7.12984916154759 7.12103840261644 2499015.483367694 1.46982925279745 137.786189953654 3.37094981516956 -50.4358505401856 1482127.78287647 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2152-Dec-10 03:31 < 00:01 Earth 0.0282942062724854 0.0282936862322808 0.028294726325621 6.66849114593498 6.65435445242809 2507405.646452167 0.870375115934707 39.8633998084748 1.87591933038156 -49.5105083298061 1476719.00238352 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2170-Oct-07 12:56 < 00:01 Earth 0.399239950052891 0.399239131915615 0.399240768190168 19.0761398213399 19.0757899633072 2513916.038909232 0.0744777463483502 40.8775518497064 5.26241993030924 3.64336766214493 1420357.77801625 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2176-Jan-19 08:06 < 00:01 Earth 0.222671811298258 0.222671215127173 0.222672407469635 13.460009605581 13.4591205762535 2515845.837711047 0.0973117594462019 32.408241218105 5.40340059777822 -23.8274938190294 2048786.37157395 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2193-Oct-29 09:12 < 00:01 Earth 0.105040887207468 0.105039241573942 0.105042532840987 10.0914342250574 10.0889202834846 2522338.883247101 0.240892096170981 82.0485459571018 3.28487774044809 -0.0881012933684017 163737.609546634 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
2199-Feb-05 12:38 < 00:01 Earth 0.499794430064028 0.499793150383825 0.499795709744232 21.9823406875727 21.9820981665415 2524264.026124987 0.125694129268314 63.8135938234583 5.99031470660612 -0.471704790374089 1023674.65824858 T 65 CATAB v2.0e-lin.ifort 2018-Apr-06 06:25:37 2018-Dec-18 03:57
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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