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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2421274451881908 3.2115e-08  
a 3.096115791272254 1.214e-08 au
q 2.346461184724689 9.922e-08 au
i 12.28225202849027 4.3059e-06 deg
node 14.91578691515858 1.6602e-05 deg
peri 238.0371838490909 1.8707e-05 deg
M 133.5315808161237 1.0415e-05 deg
tp 2458462.416140547131
(2018-Dec-09.91614055)
5.5697e-05 TDB
period 1989.867773443964
5.45
1.1704e-05
3.204e-08
d
yr
n .1809165437042733 1.0641e-09 deg/d
Q 3.845770397819819 1.508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3405  
   data-arc span      39019 days (106.83 yr)  
   first obs. used      1914-03-29  
   last obs. used      2021-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42452  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:49:45  

Additional Information
 Earth MOID = 1.35882 au 
 Jupiter MOID = 1.3873 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 9.35   n/a E2021B10  
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. 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:
[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 1.87018907236962 1.87018692475492 1.87019121998447 0.897444904402002 n/a 2417655.302392295 3.25744565038615 110.81310044624 30.5567284993274 15.5037606058016 3449178.89116818 F 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
1916-Dec-15 22:25 00:02 Jupiter 1.38721551408289 1.38721477556321 1.38721625260825 2.99410409123688 2.78271011205977 2421213.434135992 1.85569304558035 180.580903406747 23.6657079934395 84.0697037782807 3023815.89847729 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
1978-Jun-01 09:33 00:01 Jupiter 1.84788934611252 1.84788839930361 1.84789029292157 0.877487181486441 n/a 2443660.897834847 1.11780174136878 57.1590648687141 27.9847429588416 40.2739575043007 7372866.64798722 F 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
1988-Feb-14 04:25 < 00:01 Jupiter 1.40883470752455 1.40883422825686 1.40883518679417 2.95959500384699 2.74895588388261 2447205.684164672 0.522052099221054 133.205181697389 21.5587782406141 87.1126118735914 2972130.31184737 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
2049-Jun-30 21:39 00:01 Jupiter 1.78841551247482 1.78841473623195 1.78841628871795 0.625733293437371 n/a 2469623.401827429 1.05419090710772 56.7648198417256 22.1257905079119 52.5856452150809 10018851.1258729 F 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
2059-Mar-18 20:10 < 00:01 Jupiter 1.44890952570649 1.4489088938596 1.44891015755882 2.98290765647148 2.78002731654676 2473171.340583209 0.928238750294632 176.22865456589 21.011504422727 84.513615948288 2821686.44040225 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
2120-Jun-26 05:42 00:03 Jupiter 1.71080129166768 1.71079965621407 1.71080292712327 0.296106240428562 n/a 2495550.737301543 3.0867692842064 137.21313811822 45.4074706053949 -58.4538162262672 4899973.60826779 F 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
2130-Mar-27 08:32 00:02 Jupiter 1.51258796415468 1.51258653975869 1.51258938862918 3.08917705613346 2.90224917024833 2499111.855285005 2.28976915813014 572.930919427331 12.000904372371 84.5019455308095 2405796.74489839 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
2191-Jun-03 15:01 00:05 Jupiter 1.62833200349132 1.62832984333315 1.62833421736359 0.430360425544696 n/a 2521460.125632520 4.60797906787876 15637.1449963956 36.2415480802176 -89.6231258842224 6719305.43157877 F 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:49:54 2021-Feb-24 00:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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