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806 Gyldenia (A915 HE)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000806
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07861660788498138 1.6414e-08  
a 3.210752645182514 1.5337e-08 au
q 2.958334163460534 5.5627e-08 au
i 14.19973809756219 3.6537e-07 deg
node 43.69902472821986 4.1847e-06 deg
peri 121.2078861895586 1.5768e-05 deg
M 158.7454777940532 1.8022e-05 deg
tp 2458273.867428064117
(2018-Jun-04.36742806)
0.00010319 TDB
period 2101.399866833965
5.75
1.5056e-05
4.122e-08
d
yr
n .1713143727102197 1.2275e-09 deg/d
Q 3.463171126904495 1.6542e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2617  
   data-arc span      38600 days (105.68 yr)  
   first obs. used      1915-04-18  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36813  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:28:43  

Additional Information
 Earth MOID = 1.99031 au 
 Jupiter MOID = 1.57693 au 
 T_jup = 3.139 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456945.5 (2014-Oct-15.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07502737790200975 1.6154e-08  
q 2.969722541534206 5.4197e-08 au
tp 2456160.259198303307
(2012-Aug-20.75919830)
0.0001054 TDB
node 44.00527345060543 4.1721e-06 deg
peri 119.0160281041705 1.6619e-05 deg
i 14.23655464307588 3.6466e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2617  
   data-arc span      38600 days (105.68 yr)  
   first obs. used      1915-04-18  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36813  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:28:43  

Additional Information
 Jupiter MOID = 1.57693 au 
 T_jup = 3.139 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.609531816728705E-16 -8.473598571851184E-16 5.84490272357202E-13 1.609741212332549E-14 6.849301463372255E-14 -8.498678990380751E-16
q -8.473598571851184E-16 2.937321305290077E-15 -1.660814328981375E-12 -4.996817944100819E-14 -1.751197184734364E-13 2.626727742606188E-15
tp 5.84490272357202E-13 -1.660814328981375E-12 1.110888631521498E-8 -4.815298702081552E-12 1.691609319975133E-9 2.100974152930501E-12
node 1.609741212332549E-14 -4.996817944100819E-14 -4.815298702081552E-12 1.740615054473052E-11 -1.797674617934909E-11 -3.948636171244284E-13
peri 6.849301463372255E-14 -1.751197184734364E-13 1.691609319975133E-9 -1.797674617934909E-11 2.76204969356486E-10 6.998355143742005E-13
i -8.498678990380751E-16 2.626727742606188E-15 2.100974152930501E-12 -3.948636171244284E-13 6.998355143742005E-13 1.329769976851698E-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 10.25   n/a E2021B10  
diameter diameter 83.103 km 0.741 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 16.852 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Alkema, M.S. (2013) Minor Planet Bull. 40, 215-216.]
[Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Santana-Ros, T.; et al. (2015) Planet. Space Sci. 118, 256-266.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.023   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

806 Gyldenia (A915 HE)          Discovered 1915-Apr-18 by Wolf, M. at Heidelberg
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
1964-Sep-04 22:57 00:01 Jupiter 1.78739463537206 1.78739391371581 1.78739535703299 4.57753233176691 4.47280995423085 2438643.456388950 1.25636965452722 150.600040525469 4.47294072996118 -76.8386059368469 15981616.4324695 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
1975-Nov-11 15:58 < 00:01 Jupiter 1.65995624443744 1.65995597985155 1.65995650902485 4.12762518442886 4.00209366625798 2442728.165217681 0.936826126171968 87.2208249004739 4.85664360417513 -83.2519453018011 21748481.436502 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
1987-Jan-19 23:49 < 00:01 Jupiter 1.68020907393861 1.68020885882269 1.68020928905654 3.48029322056041 3.33229744205817 2446815.492253921 0.683720302276361 99.0048400234433 3.44880904426549 -82.9525797407661 6625346.13123389 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
1998-Mar-04 04:13 < 00:01 Jupiter 1.80741861956801 1.80741842739902 1.80741881173813 2.57144374756414 2.38223629243535 2450876.675748126 0.458279121924005 84.1518471848551 5.03165348515612 -80.343925719764 6556244.60815173 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
2009-Mar-06 19:21 < 00:01 Jupiter 1.95844957476251 1.95844945199283 1.95844969753219 2.30987392561355 2.11436151809713 2454897.306569714 0.173027155034027 11.2392153860558 2.03161088279451 79.413468525841 10036898.3466644 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
2131-May-06 12:39 00:02 Jupiter 1.94329714440649 1.94329574103299 1.94329854778761 4.58104372027332 4.48488841028744 2499517.027204984 2.04663717846699 206.651703534278 5.80562206110522 -70.5025129166356 11775621.7030926 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
2142-Jun-28 10:10 00:02 Jupiter 1.71038716209154 1.71038619297715 1.71038813122159 4.36333683009593 4.24832472117167 2503587.923412535 2.07308027627042 267.301097440816 4.46032203022489 -80.0136503829188 15341071.5096995 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
2153-Sep-11 21:03 00:02 Jupiter 1.61429217191327 1.61429197152353 1.61429237230494 4.01958256528237 3.88685474081359 2507681.376874033 2.22332829814117 159.752000091468 8.75772010519558 -89.4038272307091 21786547.6410368 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
2164-Nov-25 01:50 00:03 Jupiter 1.67421901463821 1.67421805198412 1.67421997734018 3.47793235282381 3.32928994035277 2511773.576462157 2.69558635006114 459.905908413053 4.64751181678503 -82.6176676780949 8071935.71545361 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29
2176-Jan-05 23:11 00:04 Jupiter 1.84000666913309 1.84000509349537 1.84000824481914 2.681370618331 2.50381211102655 2515832.466167251 3.55135643146328 495.540537680701 5.11110461228219 -76.8018675120067 7630922.41926126 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 11:29:43 2021-Apr-12 11:29

Alternate Designations
 A915 HE = 1950 LT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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