Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
496817 (1989 VB)
Classification: Apollo [NEO, PHA]          SPK-ID: 2496817
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4599195961310096 9.0496e-09  
a 1.861367300288 3.5109e-09 au
q 1.005288003288076 1.6618e-08 au
i 2.184836321600929 2.6787e-06 deg
node 37.85408076866675 4.1734e-05 deg
peri 330.8672134154907 4.2387e-05 deg
M 17.54538283245891 2.4416e-06 deg
tp 2458955.292874309148
(2020-Apr-15.79287431)
6.2727e-06 TDB
period 927.5696862309931
2.54
2.6243e-06
7.185e-09
d
yr
n .3881110016248946 1.0981e-09 deg/d
Q 2.717446597287925 5.1256e-09 au
  Orbit Determination Parameters
   # obs. used (total)      291  
   # delay obs. used      4  
   # Doppler obs. used      2  
   data-arc span      10280 days (28.15 yr)  
   first obs. used      1989-11-01  
   last obs. used      2017-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .28482  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:21:18  

Additional Information
 Earth MOID = .0171791 au 
 Jupiter MOID = 2.74479 au 
 T_jup = 3.857 
[ 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 19.9   n/a MPO437864  
diameter diameter 0.4 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 16. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
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.]

496817 (1989 VB)          Discovered 1989-Nov-01 by Parker, Q. A. at Siding Spring
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
1913-Aug-17 05:17 00:01 Earth 0.158916075191499 0.158906951800808 0.158925198614772 11.2712764537494 11.2697888060826 2419996.720097325 1.41706675676285 468.887412678401 4.99791038027313 14.0344450474243 945595.145570145 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1914-Jan-19 07:01 < 00:01 Mars 0.0704026316068033 0.070395310062079 0.0704099531614203 10.4615859171219 10.4611972052222 2420151.792591597 0.805134027206182 367.463176065675 12.8644981451412 -6.51497839078207 94964.7677746924 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1918-Oct-26 06:44 00:12 Earth 0.0573744164667438 0.0573328762542942 0.0574159571515195 8.05365989041447 8.04789147738671 2421892.780457311 11.6330796355792 2087.66743507349 3.1145129792485 7.3045166972994 299210.575883121 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1923-Nov-26 15:11 00:04 Earth 0.459003669905731 0.458956664941129 0.459050674870985 20.5038634140067 20.5035802986043 2423750.132802567 3.51620363514962 2344.10748961837 5.16740253112705 0.753549902027792 152600.204642709 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1951-Aug-08 17:53 < 00:01 Earth 0.27718213910966 0.277172635529368 0.27719164269676 14.9778004768913 14.9771586640845 2433867.245263800 0.920994881309644 478.826408490325 5.41315844245536 8.24114113852349 916137.730903825 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1956-Oct-13 02:40 < 00:01 Earth 0.01865513901324 0.0186546350161835 0.0186556430450306 6.65107882900904 6.62956961293644 2435759.611108757 0.81251544269716 47.4937477951359 1.70638374696786 58.1514707774981 1352511.42632288 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1961-Nov-27 21:52 < 00:01 Earth 0.48335771572498 0.483355991375487 0.483359440074473 21.2298221774655 21.2295625204861 2437631.411060496 0.134941104878533 85.9999258077659 5.38109848090549 1.07240234897691 765702.387800982 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1972-May-01 14:03 < 00:01 Mars 0.0487033980588753 0.0487026775713928 0.048704118546917 8.7427740305917 8.74210165123638 2441439.085151311 0.100264369695299 36.989987741264 12.8515052549249 14.6948848783654 243279.450925367 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1984-Aug-07 21:11 < 00:01 Earth 0.290386752303718 0.29038642928671 0.290387075320727 15.3452711637128 15.344673207405 2445920.382454890 0.0470892117532719 16.2954868995154 5.3379911411722 9.2393110914391 2484352.9101696 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
1989-Oct-28 16:34 < 00:01 Earth 0.0670781065393977 0.0670774523933817 0.067078760685448 8.39480362419933 8.39007054831441 2447828.190320159 0.162098467755383 32.7075465375727 3.42781079268312 4.46170822936125 323127.472302197 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2012-Jul-28 04:27 < 00:01 Earth 0.475742717658779 0.475742538108326 0.475742897209232 20.8172680296321 20.8169989881294 2456136.685592556 0.0334765619981016 9.36894276855301 5.47196940695127 21.2760308950262 7564647.81081938 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2017-Sep-29 20:01 < 00:01 Earth 0.0202344250351626 0.0202344180506601 0.0202344320197374 6.29197903149368 6.27101579648213 2458026.334337860 0.00490332042054218 2.69759658206373 0.243724582464807 -84.7304727995586 8797184.11757437 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2022-Nov-26 07:20 < 00:01 Earth 0.430587597922229 0.43058729466602 0.430587901178463 19.7172995978184 19.7169857588549 2459909.805599105 0.0319516449042655 15.7552019738743 2.70944021633125 -16.5545204165776 6784529.47197832 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2045-Aug-08 11:05 < 00:01 Earth 0.297748598283583 0.297747159504294 0.297750037062939 15.5832782263452 15.5827039620582 2468200.961519301 0.125797711591691 72.0472251406018 4.70294774923349 5.27754892055609 890795.567560242 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2050-Oct-29 21:20 < 00:01 Earth 0.0691574418023404 0.0691560902337415 0.0691587933709313 8.47001787194261 8.46546793085623 2470109.388861055 0.318938952009271 67.3860453958444 1.97101800347104 0.917503451959307 146605.103111529 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2066-May-18 04:10 < 00:01 Mars 0.0557895436927054 0.0557885924906469 0.0557904948982016 8.66020643876118 8.65961386831018 2475788.673478540 0.160455868230435 52.3295654675396 7.34064745114362 25.2495769187272 518123.20047021 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2073-Jul-31 11:17 < 00:01 Earth 0.438675910047601 0.438673130476752 0.438678689618576 19.7288132337174 19.7285053611466 2478419.969869085 0.248702188116617 139.120360947549 5.28470289640501 4.94577778249703 1005587.36635013 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2078-Oct-12 19:45 00:02 Earth 0.0173446466753702 0.0173440977216378 0.0173451957380329 6.51635766412455 6.49274039340564 2480319.322569818 1.52742951686869 73.9595379083133 0.919472030317814 68.3274165640891 2764943.61661212 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2101-Aug-14 02:18 00:08 Earth 0.246770542119005 0.246691205182948 0.246849879687228 14.0228719092424 14.0221019034389 2488659.595828261 8.41683230424954 4004.95658411663 4.29084277257945 8.96841201379265 1102867.81681424 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2106-Nov-16 05:32 00:09 Earth 0.224765341163714 0.224672539442269 0.224858142900554 13.4765066607014 13.4756269905478 2490579.730365650 9.25535010971088 4628.57657988873 2.53603904850611 -1.32563612129561 250795.761693455 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2129-Sep-15 07:30 00:35 Earth 0.0340212554938263 0.033984472402918 0.034058085427648 6.7799208333943 6.7683595022218 2498918.812576069 35.1995605335756 2708.91908024307 2.26160936441149 47.388896840484 1396257.93445997 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2134-Nov-28 03:16 00:09 Earth 0.416422851429723 0.416311852267241 0.41653385059192 19.3056184460646 19.305287011489 2500818.635917223 8.53146491032647 5535.05351539582 3.27280699970372 0.336890550184076 94726.1417680171 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2157-Aug-24 11:01 00:23 Earth 0.134716616552183 0.134571847839404 0.134861398249999 10.4731534749156 10.4712648188286 2509123.959229814 23.483693079553 7514.63192929178 3.55460435362675 16.1456204349061 1271862.25856258 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2162-Nov-19 09:35 00:13 Earth 0.262149822124519 0.26201385844531 0.262285785813801 14.6215591011106 14.6208639496665 2511036.899488873 12.5790758168826 6780.44312190908 2.66422562774367 -0.899129277315958 189543.660028082 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2172-Sep-20 10:58 00:07 Mars 0.0647958457597346 0.0647409787631481 0.0648507145297755 8.40397911307201 8.40345335294751 2514629.957083649 6.76770920284333 2787.77232565055 6.98308493244552 -11.0502706165756 274993.669382259 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2185-Aug-08 09:08 00:03 Earth 0.34783720733521 0.347804690096879 0.347869724599265 17.0405489578052 17.0400994280247 2519334.880834442 2.8653573976538 1628.34884525948 4.80684466531423 5.27505441110299 840142.496266465 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
2190-Oct-30 12:47 00:16 Earth 0.0563157236959537 0.0562585429887915 0.0563729045658029 8.03430457478006 8.02841351207111 2521244.032391882 16.1056339721077 2855.3692628512 1.9933616627297 3.39732013486299 210227.82216843 T 68 CATAB v2.0f-lin.ifort 2019-Dec-21 06:21:40 2019-Dec-21 06:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-12 08:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin