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784 Pickeringia (A914 FC)
Classification: Main-belt Asteroid          SPK-ID: 2000784
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2423295620279469 3.3323e-08  
a 3.095632320885486 1.2726e-08 au
q 2.34546909636575 1.0376e-07 au
i 12.28367518233552 4.4626e-06 deg
node 14.91747237118953 1.9193e-05 deg
peri 238.012731476618 2.1342e-05 deg
M 97.35388782805526 1.0484e-05 deg
tp 2458462.511138122061
(2018-Dec-10.01113812)
5.6806e-05 TDB
period 1989.401703382664
5.45
1.2268e-05
3.359e-08
d
yr
n .1809589281983004 1.1159e-09 deg/d
Q 3.845795545405223 1.581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2930  
   data-arc span      38791 days (106.20 yr)  
   first obs. used      1914-03-29  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45085  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:20:37  

Additional Information
 Earth MOID = 1.35927 au 
 Jupiter MOID = 1.38826 au 
 T_jup = 3.143 
[ 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 9.3   n/a MPO452168  
diameter diameter 75.596 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.144 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:
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Mas, V.; Fornas, G.; Lozano, J.; Rodrigo, O.; et al. (2018) Minor Planet Bull. 45, 76-82.]
geometric albedo albedo 0.086   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B C   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)

784 Pickeringia (A914 FC)          Discovered 1914-Mar-20 by Metcalf, J. H. at Winchester
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
1907-Mar-20 19:15 00:03 Jupiter 1.87018896895156 1.87018677865871 1.87019115924461 0.897444383546358 n/a 2417655.302253380 3.36183343674511 113.796844369876 33.4186212526757 17.077697364195 3399522.43002671 F 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
1916-Dec-15 22:25 00:02 Jupiter 1.38721551241391 1.38721475923289 1.38721626560139 2.99410418946343 2.78271021748431 2421213.434060336 1.91158853206469 191.959462462414 23.8617245208151 84.3920430746131 2986224.20879903 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
1978-Jun-01 09:33 00:01 Jupiter 1.84788933349373 1.84788836672807 1.84789030025958 0.877487030228439 n/a 2443660.897794512 1.14433196783951 61.0889581024902 30.1294501348392 44.9136440915733 7225103.35039082 F 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
1988-Feb-14 04:25 < 00:01 Jupiter 1.4088346722141 1.40883416328769 1.4088351811434 2.95959494307788 2.74895581297541 2447205.684160635 0.531263243086004 151.861605526887 21.8104763336264 86.93965759733 2946846.44902219 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
2049-Jun-30 21:39 00:01 Jupiter 1.78841557362141 1.78841469446649 1.78841645277661 0.625733529408884 n/a 2469623.401869455 1.14863040106124 62.8661337940278 26.8913926008414 52.4604653588598 8301594.82302416 F 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
2059-Mar-18 20:11 < 00:01 Jupiter 1.44890944688549 1.44890873713455 1.44891015664426 2.98290750712127 2.78002714485784 2473171.340634890 0.996330695951683 206.569403490287 22.0086878857096 84.5194742353336 2795025.52228146 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
2120-Jun-26 05:42 00:03 Jupiter 1.71080140743097 1.71079963450786 1.71080318035649 0.296106596206539 n/a 2495550.737436051 3.25425836262084 147.72585719848 46.1497210262239 -57.4966274002996 4767240.42295413 F 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
2130-Mar-27 08:32 00:02 Jupiter 1.51258782669444 1.51258628185961 1.51258937162196 3.08917663980039 2.90224870956549 2499111.855400116 2.40830805986502 622.670659305391 13.4625638792943 84.5173237898256 2399424.68636747 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
2191-Jun-03 15:01 00:05 Jupiter 1.62833213250274 1.62832983606951 1.62833449008312 0.43035944077745 n/a 2521460.125825049 4.80998673136762 16596.1676993287 36.8748773899079 -89.6201732272494 6603899.03651916 F 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:20:52 2020-Jun-23 15:20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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