Astrometry of single-apparition asteroids possibly residing in the 2:1 mean motion resonance with Jupiter

Observation proposal

We propose to observe astrometrically single-apparition asteroids possibly residing in the 2:1 mean motion resonance with Jupiter aiming at the improvement of their orbit precision by the end of 2005. See the list of the relevant asteroids.

How to report observations?

The observations should be reported in a usual way - submit them to the Minor Planet Center, which later recalculates the orbits and we select the new orbital data from their databases.

Motivation

We study the asteroids located in the 2:1 mean motion resonance with Jupiter. Because the past (or future) orbital evolution of the resonant asteroids depends strongly on their current position with respect to the borders of the resonance, our analysis can rely only on numbered or, at least, multi-opposition asteroids, which have orbits determined precisely enough.

On the other hand, we need to know as many resonant asteroids as possible. E.g. a very important constraint on the past evolution of the resonant population is its size-distribution, but this can be precisely constructed only for a population of several hundred bodies which is not much affected by observational incompleteness. Thus we would appreciate follow-up observations or recoveries of single-apparition asteroids, which seem to be located in the 2:1 resonance, and decrease the observational incompleteness of the resonant population.

Our recent works on unstable resonant population are:

Broz M., Vokrouhlicky D., Roig F., Nesvorny D., Bottke W.F., Morbidelli A., 2004, The population of asteroids in the 2:1 mean motion resonance with Jupiter revised, in: Dynamics of Populations of Planetary Systems, eds. Z. Knezevic and A. Milani, The Cambridge University Press, Cambridge, in press. [download PDF]

Broz M., Vokrouhlicky D., Roig F., Nesvorny D., Bottke W.F., Morbidelli A., 2004, Yarkovsky origin of the unstable asteroids in the 2/1 mean motion resonance with Jupiter, MNRAS, submitted.

Next year, we are going to analyze asteroids residing on stable orbits in the 2:1 mean motion resonance with Jupiter. These asteroids might be remnants of the primordial population and we can probably infer some properties of the protoplanetary disc at the end of the Late Heavy Bombardment epoch. They can be one of crucial points in our understanding of the early evolution of the Solar System.

Contact

In case of any questions or comments, you can contact Miroslav Broz or David Vokrouhlicky by e-mail: mira@sirrah.troja.mff.cuni.cz or vokrouhl@mbox.cesnet.cz. This proposal can be found on our web-site http://sirrah.troja.mff.cuni.cz/yarko-site/.

List of asteroids

The list of 334 asteroids in astorb format (selected from astorb.dat vers. Nov 2004).

You can also obtain MPC ephemeris directly using these four HTML pages: [ 1-100 | 101-200 | 201-300 | 301-335 ]

      1927 LA           
      1979 MW5          
      1981 EX11         
      1981 EK36         
      1981 EJ41         
      1990 RF3          
      1991 TQ16         
      1992 RN1          
      1993 FL12         
      1993 FB63         
      1993 FM63         
      1993 PM           
      1993 RZ2          
      1994 AH10         
      1994 JO8          
      1995 KJ4          
      1995 MT6          
      1995 SD16         
      1995 SS16         
      1995 SD34         
      1995 SW38         
      1995 SK72         
      1996 GY           
      1996 RL9          
      1996 XA17         
      1997 AT24         
      1997 BQ1          
      1997 CW10         
      1997 EN23         
      1997 SC14         
      1997 TW11         
      1998 BC34         
      1998 DO11         
      1998 GL10         
      1998 QS4          
      1998 SO47         
      1998 TZ4          
      1998 TH10         
      1998 UQ1          
      1999 BD27         
      1999 CM79         
      1999 FH16         
      1999 FG17         
      1999 FO17         
      1999 FL51         
      1999 GC3          
      1999 GH15         
      1999 RV10         
      1999 RT13         
      1999 RB169        
      1999 SE10         
      1999 SS13         
      1999 TO69         
      1999 UX34         
      1999 VM14         
      1999 VD74         
      1999 XC35         
      1999 YY16         
      1999 YH17         
      2000 AY93         
      2000 BC22         
      2000 BV39         
      2000 CK15         
      2000 ED68         
      2000 EK163        
      2000 FU10         
      2000 FH51         
      2000 GB3          
      2000 GU24         
      2000 GM69         
      2000 GQ132        
      2000 GH150        
      2000 KZ14         
      2000 KD41         
      2000 LZ1          
      2000 OJ38         
      2000 PF5          
      2000 RV100        
      2000 SB1          
      2000 SU20         
      2000 SH21         
      2000 SC28         
      2000 SR237        
      2000 SR328        
      2000 SV364        
      2000 TF3          
      2000 TT6          
      2000 TH23         
      2000 UZ24         
      2000 UQ74         
      2000 WT86         
      2000 WX101        
      2000 WP138        
      2000 XA44         
      2000 YN20         
      2000 YR37         
      2000 YB89         
      2001 BN1          
      2001 CS36         
      2001 DA65         
      2001 DC84         
      2001 FL100        
      2001 HW18         
      2001 HD31         
      2001 HX39         
      2001 KD55         
      2001 KU72         
      2001 LJ           
      2001 LU           
      2001 OK17         
      2001 PM24         
      2001 PA39         
      2001 QN71         
      2001 QT224        
      2001 QG308        
      2001 RC12         
      2001 RT39         
      2001 RX104        
      2001 SW93         
      2001 SB119        
      2001 SG165        
      2001 SY166        
      2001 SZ170        
      2001 SG184        
      2001 SX185        
      2001 SW199        
      2001 SM217        
      2001 SK276        
      2001 SS287        
      2001 SG293        
      2001 TF8          
      2001 TQ180        
      2001 UW11         
      2001 UO16         
      2001 UX66         
      2001 UV78         
      2001 UU92         
      2001 US143        
      2001 UX188        
      2001 UW195        
      2001 UU198        
      2001 VQ64         
      2001 VC86         
      2001 VE123        
      2001 VU124        
      2001 WZ56         
      2001 WV67         
      2001 WZ78         
      2001 WW97         
      2001 WG98         
      2001 XL16         
      2001 XP73         
      2001 XG91         
      2001 XE104        
      2001 XJ136        
      2001 XW159        
      2001 XO162        
      2001 XE170        
      2001 XB228        
      2001 XQ229        
      2001 XN253        
      2001 YZ12         
      2001 YL25         
      2001 YL39         
      2001 YH147        
      2002 AF29         
      2002 AY44         
      2002 AR76         
      2002 AE94         
      2002 AS109        
      2002 CP           
      2002 CE58         
      2002 CG68         
      2002 CK88         
      2002 CS179        
      2002 CT180        
      2002 CP183        
      2002 CA198        
      2002 CQ198        
      2002 CR205        
      2002 CD206        
      2002 CB260        
      2002 CL285        
      2002 EW32         
      2002 ER80         
      2002 ES129        
      2002 ED130        
      2002 EQ150        
      2002 EW152        
      2002 GF49         
      2002 GV56         
      2002 GN60         
      2002 GY70         
      2002 GR72         
      2002 GR98         
      2002 GA147        
      2002 JG14         
      2002 JL30         
      2002 JH94         
      2002 JT100        
      2002 JZ123        
      2002 KJ8          
      2002 LJ27         
      2002 LN37         
      2002 NN8          
      2002 NZ20         
      2002 NX46         
      2002 OL15         
      2002 OY20         
      2002 PN157        
      2002 QA4          
      2002 QX6          
      2002 QA22         
      2002 QQ45         
      2002 RG11         
      2002 RK234        
      2002 RY235        
      2002 SE10         
      2002 SA25         
      2002 SX45         
      2002 TQ11         
      2002 TP26         
      2002 TT67         
      2002 TO84         
      2002 TR96         
      2002 TC102        
      2002 TW324        
      2002 VO1          
      2002 VB27         
      2002 VJ80         
      2002 VD85         
      2002 VY94         
      2002 XS25         
      2002 XK27         
      2002 XG36         
      2002 XF46         
      2002 XY65         
      2002 XH78         
      2002 XA94         
      2002 YA26         
      2002 YK29         
      2003 AL20         
      2003 AU22         
      2003 AW49         
      2003 AM55         
      2003 AF63         
      2003 AY69         
      2003 AG90         
      2003 BC5          
      2003 BJ10         
      2003 BO42         
      2003 BF45         
      2003 EV2          
      2003 EQ4          
      2003 EY16         
      2003 EH18         
      2003 EO31         
      2003 EJ59         
      2003 FH63         
      2003 FL96         
      2003 HH4          
      2003 HK21         
      2003 HG55         
      2003 LB5          
      2003 OR1          
      2003 OW26         
      2003 QZ16         
      2003 QE38         
      2003 QL65         
      2003 RS2          
      2003 RK10         
      2003 RM11         
      2003 RV19         
      2003 ST37         
      2003 SH59         
      2003 SF87         
      2003 SB105        
      2003 SK143        
      2003 SO191        
      2003 SC193        
      2003 SY218        
      2003 SU261        
      2003 SC266        
      2003 SG313        
      2003 SF314        
      2003 TA           
      2003 UK7          
      2003 UL15         
      2003 UA23         
      2003 UM101        
      2003 UR120        
      2003 UX159        
      2003 UU160        
      2003 UN220        
      2003 WR25         
      2003 WJ56         
      2003 XM           
      2003 YA           
      2003 YN17         
      2003 YK34         
      2003 YO42         
      2003 YW49         
      2003 YY54         
      2003 YD56         
      2003 YU58         
      2003 YK69         
      2003 YE73         
      2003 YK92         
      2003 YK93         
      2003 YT110        
      2003 YJ112        
      2003 YJ115        
      2003 YS150        
      2004 BV           
      2004 BM69         
      2004 BJ73         
      2004 BW80         
      2004 BL94         
      2004 CH71         
      2004 CB95         
      2004 DU21         
      2004 DA27         
      2004 DG33         
      2004 EL8          
      2004 ET20         
      2004 EL28         
      2004 ET48         
      2004 FW129        
      2811 P-L          
      1133 T-1          
      1012 T-3          
      2620 T-3          
      4121 T-3          
      4193 T-3          


Miroslav Broz (miroslav.broz@email.cz), Nov 9th 2004