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3449 Abell (1978 VR9)
Classification: Main-belt Asteroid          SPK-ID: 2003449
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1504997283368809 3.2506e-08  
a 3.089850129887087 1.6381e-08 au
q 2.624828524737405 1.0572e-07 au
i 2.038382626465456 3.5673e-06 deg
node 81.39540682477205 0.00011263 deg
peri 334.4700887347561 0.00011368 deg
M 258.0734738835131 1.7454e-05 deg
tp 2459562.180402459971
(2021-Dec-13.68040246)
9.8561e-05 TDB
period 1983.830437373085
5.43
1.5776e-05
4.319e-08
d
yr
n .1814671219969277 1.443e-09 deg/d
Q 3.55487173503677 1.8846e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2101  
   data-arc span      15334 days (41.98 yr)  
   first obs. used      1978-11-05  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:00:11  

Additional Information
 Earth MOID = 1.63682 au 
 Jupiter MOID = 1.7933 au 
 T_jup = 3.207 
[ 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 12.8   n/a MPO267721  
diameter diameter 15.796 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3449 Abell (1978 VR9)          Discovered 1978-Nov-07 by Helin, E. F. and Bus, S. J. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1900-Sep-02 00:29 00:03 Jupiter 1.79682506249929 1.79682476314892 1.79682536184956 1.96019260788388 1.70280826026431 2415264.520303187 2.73844892319649 55.0490915848371 18.3264026481666 87.5340366971371 3070916.63417701 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
1960-Apr-19 20:47 00:01 Jupiter 1.79635133070814 1.79635100380716 1.79635165760902 2.02757085946401 1.77988647599611 2437044.365769807 1.32768568361424 52.2989332015831 10.5847791169294 88.5995188995386 2968116.87182179 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
1970-Jan-27 11:26 00:01 Jupiter 1.98807614107274 1.98807555008804 1.98807673205766 2.46782668142315 2.28868211807356 2440613.976357543 1.02506548422996 68.5909353154608 7.49901808338282 83.4556284287445 3084350.06545425 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
2019-Dec-06 19:32 < 00:01 Jupiter 1.80346585126958 1.80346551365039 1.80346618888867 2.13238144603937 1.89940073506544 2458824.313724190 0.199318972617495 46.1504374682136 5.10934497236508 86.962089918585 3177284.63407679 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
2029-Sep-11 14:32 < 00:01 Jupiter 1.94366649226111 1.94366615357699 1.94366683094511 2.30597905098042 2.10854630433415 2462391.105840612 0.403388511565627 48.6250332261369 4.48657103610097 87.6912610657574 3551207.28062482 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
2079-Jul-25 03:51 00:02 Jupiter 1.81799443467403 1.81799404195031 1.81799482739765 2.27645770084151 2.06165924973378 2480604.660215881 1.53272931933994 48.7370213359301 8.28927152695162 -86.5215264422374 2496922.6943395 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
2089-Apr-27 13:46 00:02 Jupiter 1.90119267836639 1.90119216478173 1.90119319195149 2.16780419222228 1.95149473434321 2484169.073753926 1.76819573950123 81.6007940600833 5.72844743822429 84.8450839379888 3365629.24223806 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
2139-Mar-14 00:55 00:03 Jupiter 1.83971525200814 1.83971461513002 1.83971588888647 2.4615828064986 2.26684158354046 2502385.538002288 2.94451402047199 74.1736286283638 6.37197036828264 -87.475720477578 2177536.31953897 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
2148-Dec-13 13:50 00:03 Jupiter 1.86174076687434 1.86173999135432 1.86174154239541 2.05504525354203 1.82024330543788 2505948.076701447 3.1719800145512 105.782107286333 7.81553517354953 84.4345153203486 2969154.75401517 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00
2198-Oct-31 06:23 00:04 Jupiter 1.86812623765057 1.86812518700755 1.86812728829518 2.68782839539347 2.5134849133268 2524166.766046490 4.33965262917537 120.151719673719 8.88156888740544 85.414797520097 2281772.63809004 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 04:00:17 2020-Nov-13 04:00

Alternate Designations
 1978 VR9 = 1983 TQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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