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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 493 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2841953744868532 2.7758e-08  
a 1.774496549000118 3.1676e-09 au
q 1.2701928377314 4.8789e-08 au
i 20.35824141434919 5.1933e-06 deg
node 348.7468004659432 7.3948e-06 deg
peri 234.9702614838137 1.115e-05 deg
M 37.97432958724411 8.3931e-06 deg
tp 2458909.425083838095
(2020-Feb-29.92508384)		 2.0043e-05 TDB
period 863.3982528370718
2.36		 2.3118e-06
6.329e-09		 d
yr
n .4169570633448271 1.1164e-09 deg/d
Q 2.278800260268835 4.0678e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2723  
   data-arc span      16572 days (45.37 yr)  
   first obs. used      1975-06-09  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-23 08:23:54  

Additional Information
 Earth MOID = .35162 au 
 Jupiter MOID = 2.83026 au 
 T_jup = 3.982 
[ 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 14.7   n/a MPO337281  
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. 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:
[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 0.348261825508054 0.34826154234537 0.34826210874628 10.5318577014248 10.5311312334386 2416569.111316099 0.296500291851525 346.077435415089 9.50214584561524 -88.2692472849022 3991990.30251831 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
1930-Apr-01 00:02 < 00:01 Earth 0.350455488821171 0.350455182445224 0.35045579524208 10.5848021160645 10.584083806774 2426067.501088344 0.220512180545704 253.613061984172 9.52411054019689 87.2984399711616 3904684.06976288 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
1956-Apr-01 21:47 < 00:01 Earth 0.354625415720092 0.3546250116575 0.354625819807801 10.6376735458445 10.636967211605 2435565.407591371 0.153919076977336 170.438700870009 9.59997699520261 84.0247930021784 3835564.24654039 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
1982-Apr-03 06:33 < 00:01 Earth 0.358247404202549 0.358247098486434 0.358247709924467 10.6677537871149 10.6670565660282 2445062.772657507 0.089952938826573 93.6243485977501 9.55507773268397 82.6729708870764 3803400.3734519 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2008-Apr-03 09:37 < 00:01 Earth 0.361127372147267 0.361127200187866 0.361127544106669 10.676969586507 10.6762785229384 2454559.900916658 0.0431956865609054 29.3289268081369 8.57402005236488 -89.8430810597677 3956439.39774446 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2034-Apr-04 04:42 < 00:01 Earth 0.362576193451912 0.362575909424954 0.362576477481034 10.6738247975555 10.6731362926977 2464056.695848205 0.0683676617135599 62.8045459091446 9.83918539757686 80.5477577229388 3721656.99159024 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2060-Apr-03 15:53 < 00:01 Earth 0.361236712449599 0.361236218365045 0.361237206550353 10.647401931292 10.6467091582879 2473553.161928506 0.12757951285569 133.899351762033 9.83417431756346 80.2609572031016 3711940.12001352 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2086-Apr-04 13:49 < 00:01 Earth 0.363134696761909 0.363133908968847 0.363135484598319 10.6530244664632 10.6523356782198 2483050.075718501 0.197773983728072 208.149470564943 9.88681501225671 79.4637545394747 3693216.1432324 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2112-Apr-05 11:06 < 00:01 Earth 0.364613085412471 0.364611926098347 0.364614244810845 10.6701828477692 10.6694979556285 2492546.962638835 0.269377223011301 286.474831970352 9.94956127174359 78.5270237269087 3657754.30690608 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2119-Mar-14 18:44 < 00:01 Earth 0.498410569091917 0.498407731519393 0.498413406707024 10.5154342795124 10.5149258761678 2495081.280377535 0.362104788018038 270.656976570967 13.0321091348436 -58.5887132761952 4230505.69224882 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2138-Apr-06 18:03 < 00:01 Earth 0.368438468322555 0.368436805070053 0.36844013170903 10.7048006195266 10.7041250306191 2502044.252423250 0.345911849476523 362.594647200232 10.0556682509578 76.871316106772 3613359.55441261 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2145-Mar-15 12:40 < 00:01 Earth 0.486193982135184 0.486190464053735 0.486197500293188 10.4857710248621 10.4852483721223 2504579.027634806 0.451521664244051 351.901886885352 12.6562347811179 -60.1618660883488 4270801.63248421 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2164-Apr-07 15:42 < 00:01 Earth 0.378852994724779 0.378850437142685 0.378855552491495 10.7949480302298 10.7942965005829 2511542.154098940 0.435380541874615 437.423306574002 10.3156194528797 73.1008559846588 3515927.08694321 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2171-Mar-17 20:00 < 00:01 Earth 0.466435749172658 0.46643158385809 0.466439914622551 10.4439866000384 10.4434396274091 2514077.333540114 0.548871725604104 447.924797912078 12.1096403630833 -62.4130294796718 4282395.60403379 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2190-Apr-09 22:14 < 00:01 Earth 0.394028528084516 0.394024740162913 0.39403231623357 10.9481239020115 10.947506230974 2521040.426331564 0.528612871633136 509.18228720493 10.6633188476254 68.2564235502689 3389575.49873723 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
2197-Mar-19 18:43 < 00:01 Earth 0.441044689552855 0.441040065949273 0.44104931338894 10.4046822498707 10.4041016017081 2523576.279889214 0.625861914423639 555.70021635909 11.3910791187655 -65.5129104571957 4310271.02858598 T 493 CATAB v2.0f-lin.ifort 2020-Oct-23 08:24:08 2020-Oct-23 08:24
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-30 05:33 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin