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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2418848322813775 1.8451e-08  
a 3.096720078176947 1.2033e-08 au
q 2.347670461444742 5.6085e-08 au
i 12.2809703521849 3.4491e-07 deg
node 14.91086030025271 1.1075e-06 deg
peri 238.0532093354794 4.1106e-06 deg
M 168.9814551484027 6.8825e-06 deg
tp 2458462.196670190141
(2018-Dec-09.69667019)
3.4542e-05 TDB
period 1990.450362947585
5.45
1.1602e-05
3.176e-08
d
yr
n .1808635908241838 1.0542e-09 deg/d
Q 3.845769694909152 1.4944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3509  
   data-arc span      39090 days (107.02 yr)  
   first obs. used      1914-03-29  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42145  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:33:55  

Additional Information
 Earth MOID = 1.36169 au 
 Jupiter MOID = 1.38615 au 
 T_jup = 3.143 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456668.5 (2014-Jan-11.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .241698853761205 1.8393e-08  
q 2.349252990801429 5.5894e-08 au
tp 2456474.306569527435
(2013-Jun-30.80656953)
2.895e-05 TDB
node 14.95344316726048 1.1047e-06 deg
peri 238.3915836312453 4.0988e-06 deg
i 12.28620198664164 3.4491e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3509  
   data-arc span      39090 days (107.02 yr)  
   first obs. used      1914-03-29  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42145  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:33:55  

Additional Information
 Jupiter MOID = 1.38615 au 
 T_jup = 3.143 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.383192198827262E-16 -1.014519230701587E-15 3.495987314563413E-13 4.240966130961318E-15 2.658438871530062E-14 1.008506256887427E-15
q -1.014519230701587E-15 3.124100279195191E-15 -9.998297110909685E-13 -1.386099074278395E-14 -6.76360848202849E-14 -3.318955301402276E-15
tp 3.495987314563413E-13 -9.998297110909685E-13 8.381279179065748E-10 -1.250803753406967E-11 1.095429827597707E-10 -3.226846939381036E-12
node 4.240966130961318E-15 -1.386099074278395E-14 -1.250803753406967E-11 1.220312268095519E-12 -2.860686561705964E-12 2.442876631897235E-13
peri 2.658438871530062E-14 -6.76360848202849E-14 1.095429827597707E-10 -2.860686561705964E-12 1.680050123981879E-11 -6.491837065026797E-13
i 1.008506256887427E-15 -3.318955301402276E-15 -3.226846939381036E-12 2.442876631897235E-13 -6.491837065026797E-13 1.189627474974266E-13

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 1.87018879001163 1.8701867632171 1.87019081680624 0.897443207175169 n/a 2417655.302244500 3.20479620752713 102.798847161748 7.22040551606092 10.5551385638453 7576153.26066621 F 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
1916-Dec-15 22:25 00:02 Jupiter 1.38721525886759 1.38721462737484 1.38721589036539 2.99410307298255 2.78270897729509 2421213.434144200 1.84053323897107 145.026380299375 6.7617672258704 81.3579786462704 14593118.783948 T 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
1978-Jun-01 09:33 00:01 Jupiter 1.84788896313817 1.84788824797391 1.84788967830246 0.877484136479949 n/a 2443660.897607927 1.06926477102473 36.7465521338735 8.95438741838148 14.3955653702363 10577297.1040569 F 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
1988-Feb-14 04:25 < 00:01 Jupiter 1.40883448651347 1.40883427280426 1.40883470022316 2.95959398340029 2.74895475214217 2447205.684180222 0.491281425608149 54.7604268107821 5.83923757242381 83.6843711284775 16850830.6683023 T 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
2049-Jun-30 21:38 < 00:01 Jupiter 1.78841503496222 1.78841456184949 1.78841550807504 0.625729542452423 n/a 2469623.401520260 0.987439038022578 31.2830130270723 8.87478031476576 43.2225143989994 21557653.6580915 F 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
2059-Mar-18 20:10 < 00:01 Jupiter 1.4489094106168 1.44890897519237 1.44890984604369 2.98290688411256 2.78002647228121 2473171.340538805 0.88717016813182 103.345218586287 4.3271900468558 81.302634131373 18167161.2099319 T 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
2120-Jun-26 05:41 00:03 Jupiter 1.71080068973152 1.71079918128238 1.71080219818326 0.296105118997832 n/a 2495550.736911458 3.03432325244817 129.717864223212 4.8221228811222 -54.6138683693575 43270222.4544984 F 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
2130-Mar-27 08:31 00:02 Jupiter 1.51258800474976 1.51258665835402 1.5125893512161 3.08917641391069 2.90224849290557 2499111.855202449 2.25659557081598 536.552693625812 1.55303403280963 84.4170110971539 23565291.5185791 T 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
2191-Jun-03 15:00 00:05 Jupiter 1.62833133117601 1.62832926549797 1.62833345221513 0.43036523342335 n/a 2521460.125228934 4.54448946637825 15003.1446218706 6.68850847781461 -89.6021698391995 36408315.6565465 F 50 CATAB v2.0g-lin.ifort 2021-Jul-08 11:35:42 2021-Jul-08 11:35
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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