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 ]  
3691 Bede (1982 FT)
Classification: Amor [NEO]          SPK-ID: 2003691
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 521 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2842541340122119 6.6042e-09  
a 1.77417165212488 2.9718e-09 au
q 1.269856025561107 1.1384e-08 au
i 20.36129619678061 7.8664e-07 deg
node 348.7434666188149 1.6964e-06 deg
peri 234.9348567376985 2.8986e-06 deg
M 121.4130773109825 3.0449e-06 deg
tp 2458909.391526763941
(2020-Feb-29.89152676)
6.7824e-06 TDB
period 863.1611411722412
2.36
2.1687e-06
5.938e-09
d
yr
n .4170716020777899 1.0479e-09 deg/d
Q 2.278487278688653 3.8165e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2884  
   data-arc span      16682 days (45.67 yr)  
   first obs. used      1975-06-09  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:25:47  

Additional Information
 Earth MOID = .350743 au 
 Jupiter MOID = 2.82931 au 
 T_jup = 3.983 
[ 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 14.77   n/a E2021B10  
diameter diameter 4.3 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 226.8 h n/a LCDB (Rev. 2020-October); 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Pravec, P.; et al. (2005) Icarus 173, 108-131.]
geometric albedo albedo 0.515   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B Xc   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)

3691 Bede           Discovered 1982 Mar. 29 by L. E. Gonzalez at Cerro El Roble.
The Venerable Bede (c. 672-735), the "Father of English History" who popularized the A.D. reckoning of years, compiled a history of England since the time of Caesar. The name follows a suggestion by B. Hafferty in the BBC Word of Mouth competition in this centenary year of St. Bede's School, Bradford, West Yorkshire.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

[ 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
1904-Mar-29 14:40 < 00:01 Earth 0.34826181372001 0.3482616274836 0.348262000073407 10.5318525562919 10.5311260879261 2416569.111337400 0.279850252711596 328.399195240237 2.26994515467208 -88.4278239778121 18276673.4046663 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
1930-Apr-01 00:02 < 00:01 Earth 0.350455462590997 0.350455207542729 0.35045571770361 10.5847963778094 10.5840780680756 2426067.501109877 0.207623283730243 241.018108132125 2.28221971565115 87.0241625297684 18257173.5874548 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
1956-Apr-01 21:47 < 00:01 Earth 0.354625367278305 0.354624996284073 0.354625738301545 10.6376675983909 10.6369612636599 2435565.407610696 0.14361492418286 162.26026160385 2.3118935207998 83.5043038244495 18189304.9716132 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
1982-Apr-03 06:33 < 00:01 Earth 0.358247336614765 0.358247064751053 0.358247608486867 10.6677472032478 10.6670499815991 2445062.772678278 0.0798801505133736 88.8166390280699 2.33028980392092 81.3492465184842 18136077.7194532 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2008-Apr-03 09:37 < 00:01 Earth 0.361127306478671 0.361127231114989 0.361127381842599 10.6769634654833 10.6762724013926 2454559.900936699 0.0193018852164758 19.1016782977696 2.32412051526782 81.0395700353435 18278120.3166505 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2034-Apr-04 04:42 < 00:01 Earth 0.362576144533954 0.362575958406607 0.362576330663856 10.6738187663572 10.6731302610174 2464056.695872889 0.0470189478550002 50.3875478162703 2.34830587558103 79.7237977905301 18127757.0722955 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2060-Apr-03 15:53 < 00:01 Earth 0.361236673564744 0.361236268097961 0.361237079046784 10.6473959568005 10.646703183333 2473553.161954903 0.108966184172763 119.567368364572 2.33902786965124 80.3288687639149 18099261.0356003 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2086-Apr-04 13:49 < 00:01 Earth 0.363134663322286 0.36313397302214 0.363135353660949 10.6530183971182 10.6523296084189 2483050.075747781 0.176489352767326 190.088450156864 2.35387748691807 79.5910550366025 18064022.0875184 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2112-Apr-05 11:06 < 00:01 Earth 0.364613077016907 0.364612033054435 0.364614121053183 10.6701773208224 10.6694924283109 2492546.962671178 0.2446086287093 264.164725351001 2.3709438441531 78.6461173527111 17974165.2800222 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2119-Mar-14 18:44 < 00:01 Earth 0.4984104766367 0.498407862266373 0.498413091043377 10.5154299803219 10.5149215766751 2495081.280398325 0.333735177229167 249.181677065679 3.08374319223226 -58.4610563782895 16659431.7139652 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2138-Apr-06 18:04 < 00:01 Earth 0.36843850496296 0.368436984522811 0.368440025520141 10.7047952322143 10.7041196430338 2502044.252463605 0.317009316812965 336.251578045098 2.39682070064686 76.9752144106782 17904146.1331497 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2145-Mar-15 12:40 < 00:01 Earth 0.48619381251861 0.486190552052524 0.48619707305061 10.4857666435159 10.4852439903753 2504579.027663342 0.418406691980659 325.854420625773 3.0018704027329 -60.0733289193764 16910099.6291101 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2164-Apr-07 15:42 < 00:01 Earth 0.378853115135633 0.37885075301578 0.378855477416742 10.794943173759 10.7942916440259 2511542.154149678 0.401075743310941 407.254323540601 2.45527378970014 73.1917619844248 17769218.4670143 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2171-Mar-17 20:00 < 00:01 Earth 0.466435465528584 0.466431588879992 0.466439342294499 10.44398199416 10.4434350209568 2514077.333579607 0.510573864076977 416.516590352489 2.87545823420145 -62.34925964285 17151737.3743184 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2190-Apr-09 22:14 < 00:01 Earth 0.394028775773799 0.39402525505091 0.394032296695984 10.9481195164066 10.9475018455098 2521040.426393636 0.488716266601713 475.544347711706 2.53031630742603 68.3367071608823 17588564.4646457 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
2197-Mar-19 18:43 < 00:01 Earth 0.441044300776245 0.441039983114017 0.441048618641294 10.4046774088606 10.4040967599159 2523576.279941365 0.583942900439508 518.503659048663 2.70481953036047 -65.4667628130201 17550228.0219635 T 521 CATAB v2.0f-lin.ifort 2021-Apr-12 15:26:45 2021-Apr-12 15:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-13 22:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin