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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07861667057922551 3.9399e-08  
a 3.21075265068385 1.5852e-08 au
q 2.958333967233663 1.2515e-07 au
i 14.19972426025658 4.1445e-06 deg
node 43.69903059568031 1.7174e-05 deg
peri 121.2078581731782 3.0739e-05 deg
M 158.745497854771 2.6145e-05 deg
tp 2458273.867308583705
(2018-Jun-04.36730858)
0.00015203 TDB
period 2101.399872234805
5.75
1.5562e-05
4.261e-08
d
yr
n .171314372269922 1.2687e-09 deg/d
Q 3.463171334134037 1.7098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2584  
   data-arc span      38600 days (105.68 yr)  
   first obs. used      1915-04-18  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36514  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:49:57  

Additional Information
 Earth MOID = 1.99031 au 
 Jupiter MOID = 1.57693 au 
 T_jup = 3.139 
[ 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 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 1.78739467459493 1.78739376732265 1.78739558187411 4.57752981733767 4.47280738267063 2438643.456283551 1.39251286959912 203.42486579567 17.2346999225445 -78.6538462047617 3379341.28810638 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
1975-Nov-11 15:58 00:01 Jupiter 1.65995612542995 1.65995566821355 1.65995658264919 4.12762206346969 4.00209043756003 2442728.165055549 1.04637697586915 191.479217736494 15.1837753545328 -85.8602061877828 2913366.14413085 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
1987-Jan-19 23:49 < 00:01 Jupiter 1.68020870774245 1.68020826450217 1.68020915098312 3.48029017129552 3.33229422356033 2446815.492101533 0.774250756024151 265.626609053856 20.3600841014689 -88.1407389768819 3051390.08758687 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
1998-Mar-04 04:13 < 00:01 Jupiter 1.80741801406786 1.80741747665482 1.8074185514808 2.57144173457752 2.38223405257845 2450876.675646677 0.567532382011838 171.904527512043 28.6191508171255 -85.5323004620349 2437113.08693743 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
2009-Mar-06 19:21 < 00:01 Jupiter 1.95844892413119 1.95844837696153 1.95844947130075 2.30987273853798 2.11436015216831 2454897.306581224 0.351300044585936 48.8559872512071 12.8132416701928 66.0789016371552 3097688.12981571 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
2131-May-06 12:39 00:02 Jupiter 1.94329711367887 1.94329567162897 1.94329855573627 4.5810416694154 4.48488631338582 2499517.027070985 2.06898645241005 213.30319999082 18.0226111290248 -71.1980599852665 3687647.69327309 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
2142-Jun-28 10:09 00:02 Jupiter 1.71038709691917 1.71038610457609 1.71038808927654 4.36333388699996 4.24832169331344 2503587.923231986 2.10887769146462 277.353054327703 16.4020399506031 -80.776763961589 3126984.25277419 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
2153-Sep-11 21:02 00:02 Jupiter 1.61429196385384 1.61429157314321 1.61429235456567 4.01957928166429 3.88685132692226 2507681.376658169 2.2788746335602 217.726298381563 17.3270736988747 -88.4036779378858 2615545.07392749 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
2164-Nov-25 01:50 00:03 Jupiter 1.67421860101082 1.67421751722874 1.67421968484487 3.47792924316512 3.32928665347494 2511773.576245908 2.7752014785613 594.185521544741 32.2500948101041 -84.5689865827829 3330891.26266383 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50
2176-Jan-05 23:11 00:04 Jupiter 1.84000605453378 1.84000439049438 1.84000771862003 2.68136868675594 2.50380998004644 2515832.466012037 3.65113099067153 530.241703087517 35.3065076157428 -77.7602315864452 2628689.2773204 T 34 CATAB v2.0f-lin.ifort 2021-Feb-24 00:50:04 2021-Feb-24 00:50

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