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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 52 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .241884832337068 1.8448e-08  
a 3.096720078219072 1.2028e-08 au
q 2.34767046130422 5.608e-08 au
i 12.28097035234049 3.4491e-07 deg
node 14.91086030065266 1.1075e-06 deg
peri 238.0532093334323 4.1104e-06 deg
M 168.9814551265878 6.8808e-06 deg
tp 2458462.196670291692
(2018-Dec-09.69667029)
3.4536e-05 TDB
period 1990.450362988199
5.45
1.1597e-05
3.175e-08
d
yr
n .1808635908204933 1.0537e-09 deg/d
Q 3.845769695133924 1.4937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3564  
   data-arc span      39210 days (107.35 yr)  
   first obs. used      1914-03-29  
   last obs. used      2021-08-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41825  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:09:52  

Additional Information
 Earth MOID = 1.36169 au 
 Jupiter MOID = 1.38615 au 
 T_jup = 3.143 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456683.5 (2014-Jan-26.0) TDB
Reference: JPL 52 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .241700482164021 1.839e-08  
q 2.349228654345305 5.5886e-08 au
tp 2456474.297424357561
(2013-Jun-30.79742436)
2.895e-05 TDB
node 14.95283523891774 1.1047e-06 deg
peri 238.3890641796552 4.0989e-06 deg
i 12.28626505196981 3.4491e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3564  
   data-arc span      39210 days (107.35 yr)  
   first obs. used      1914-03-29  
   last obs. used      2021-08-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41825  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:09:52  

Additional Information
 Jupiter MOID = 1.38615 au 
 T_jup = 3.143 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.382034209370331E-16 -1.014220862909907E-15 3.495071195407789E-13 4.240694431682075E-15 2.657786867270635E-14 1.008419653447517E-15
q -1.014220862909907E-15 3.123290460030127E-15 -9.995549846440543E-13 -1.386211532446492E-14 -6.76145146558497E-14 -3.319101062473995E-15
tp 3.495071195407789E-13 -9.995549846440543E-13 8.380827473039514E-10 -1.250820018371588E-11 1.095434359830273E-10 -3.227022398197848E-12
node 4.240694431682075E-15 -1.386211532446492E-14 -1.250820018371588E-11 1.220308051965489E-12 -2.86074630189227E-12 2.442899488874059E-13
peri 2.657786867270635E-14 -6.76145146558497E-14 1.095434359830273E-10 -2.86074630189227E-12 1.680117120767662E-11 -6.492172508213045E-13
i 1.008419653447517E-15 -3.319101062473995E-15 -3.227022398197848E-12 2.442899488874059E-13 -6.492172508213045E-13 1.189634827277853E-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 1.87018878661027 1.87018676079419 1.87019081242642 0.897443147979453 n/a 2417655.302236986 3.2032455191345 102.74939733967 7.22031115768297 10.5556971341651 7577040.42499844 F 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
1916-Dec-15 22:25 00:02 Jupiter 1.38721525977156 1.38721462853138 1.38721589101679 2.99410309245042 2.78270899838486 2421213.434140143 1.83964367576282 144.953908690223 6.76136925051237 81.3570775734519 14593639.9301522 T 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
1978-Jun-01 09:33 00:01 Jupiter 1.84788896182552 1.84788824698811 1.84788967666296 0.877484325663501 n/a 2443660.897622459 1.06877912148404 36.7300718802723 8.95426197113064 14.3980050035669 10580495.1819069 F 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
1988-Feb-14 04:25 < 00:01 Jupiter 1.40883448672135 1.40883427305066 1.40883470039252 2.95959405823354 2.7489548327418 2447205.684171358 0.491064565389291 54.7350719741948 5.83891822228978 83.6824425210989 16851155.6298953 T 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
2049-Jun-30 21:38 < 00:01 Jupiter 1.78841503249097 1.78841455960987 1.78841550537215 0.625729598523599 n/a 2469623.401523498 0.986933942152654 31.2663432245435 8.8747758347501 43.2219510798507 21558434.2350841 F 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
2059-Mar-18 20:10 < 00:01 Jupiter 1.44890941422709 1.44890897905205 1.4489098494046 2.98290677469714 2.78002635540485 2473171.340547119 0.886723907190085 103.293586220588 4.3268632969367 81.3035483829075 18168424.2069779 T 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
2120-Jun-26 05:41 00:03 Jupiter 1.71080066179496 1.71079915406587 1.71080216952667 0.296105041265995 n/a 2495550.736866683 3.03284330657377 129.658323870636 4.82200351998265 -54.614666572001 43271733.3806644 F 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
2130-Mar-27 08:31 00:02 Jupiter 1.51258803256217 1.51258668685296 1.51258937834189 3.08917647425639 2.9022485606858 2499111.855174937 2.25549643654871 536.283700234713 1.55296136944712 84.4170601881326 23565632.0051791 T 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
2191-Jun-03 15:00 00:05 Jupiter 1.62833127814167 1.62832921341673 1.62833339817808 0.43036581962196 n/a 2521460.125140390 4.54231205545584 14996.44319048 6.68784136748823 -89.6021785921362 36411946.2283197 F 52 CATAB v2.0g-lin.ifort 2021-Aug-25 21:11:47 2021-Aug-25 21:11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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