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718 Erida (A911 SA)
Classification: Main-belt Asteroid          SPK-ID: 2000718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1988492704264815 4.1208e-08  
a 3.057679989953388 1.3389e-08 au
q 2.449662554753505 1.2599e-07 au
i 6.92648954097953 4.711e-06 deg
node 38.53232073126908 3.1083e-05 deg
peri 174.5477378499988 3.239e-05 deg
M 263.1501273852035 1.0634e-05 deg
tp 2459525.891481070258
(2021-Nov-07.39148107)
5.9304e-05 TDB
period 1952.929085798263
5.35
1.2827e-05
3.512e-08
d
yr
n .1843384906384603 1.2108e-09 deg/d
Q 3.665697425153271 1.6051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3006  
   data-arc span      42854 days (117.33 yr)  
   first obs. used      1902-12-24  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41449  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:11:17  

Additional Information
 Earth MOID = 1.44363 au 
 Jupiter MOID = 1.30044 au 
 T_jup = 3.193 
[ 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 9.7   n/a MPO384751  
diameter diameter 70.911 km 1.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 17.447 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Galad, A.; Vilagi, J.; Kornos, L.; Gajdos, S. (2009) Minor Planet Bull. 36, 116-118.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.042   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B X   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)

718 Erida (A911 SA)          Discovered 1911-Sep-29 by Palisa, J. at Vienna
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
1918-Jun-21 20:50 00:02 Jupiter 1.8723728789719 1.8723707865117 1.8723749714338 2.18576674481368 1.96794763497691 2421766.368307379 2.28964390421123 160.669174026842 10.3840198257885 -77.9265131198295 1779618.98301425 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
1927-Oct-31 10:26 00:02 Jupiter 1.43781649256778 1.4378151163978 1.43781786886633 1.53003661392952 1.07833451920173 2425184.934919041 2.02043835136061 969.184802514124 179.890746702347 -82.9103748641871 1276385.85906016 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
1976-Aug-07 15:09 < 00:01 Jupiter 1.37487082857502 1.37487019232585 1.37487146483623 1.54910705655021 1.08054808816563 2442998.131363625 0.809845575103533 325.467178624075 182.388049755385 -62.4560348705749 1348426.90243413 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
1985-Dec-10 15:41 < 00:01 Jupiter 1.96571086166733 1.96571020472844 1.96571151860599 2.72156711953087 2.55834515275383 2446410.153612840 0.618454454204112 48.0950805216687 20.4088899759993 86.9649074742263 2345543.48504356 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
2034-Dec-22 05:14 < 00:01 Jupiter 1.34804303323876 1.34804254024033 1.34804352624277 1.58472734115429 1.12012985824396 2464318.718090241 0.549315743296876 416.94080814434 108.983646786684 -65.9074234761258 1787305.08331256 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
2083-Oct-05 22:05 00:02 Jupiter 1.48398431695014 1.48398300576715 1.48398562818728 1.46174735102276 0.997573794502273 2482138.419945150 1.80301999759477 585.504271028743 258.383707518 -81.9920825340841 1325239.81828764 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
2093-Feb-15 10:52 00:02 Jupiter 1.80808469754058 1.80808286669714 1.80808652838534 2.22889531628722 2.00774660073297 2485558.952940671 2.05698645090166 148.175607004183 26.4821602574938 -81.1118465645753 2018873.41998521 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
2142-Feb-08 11:13 00:03 Jupiter 1.30091204847754 1.30091145937557 1.30091263757915 1.57984657649575 1.09257367394775 2503447.967313326 2.57648298591489 369.523032261198 121.719727889855 -58.6148939165002 1794791.84794069 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
2190-Dec-31 11:09 00:05 Jupiter 1.64096682005224 1.6409629966363 1.6409706437329 1.42776974819882 1.00308561912662 2521305.964501242 4.79248061885871 1344.72892436347 201.219969385738 80.2357081183509 1598197.45739761 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11
2200-May-15 01:09 00:05 Jupiter 1.63018411921071 1.63018009153108 1.63018814726833 1.88082743145229 1.58061310193229 2524727.547943134 4.89429197326424 1391.49467129743 51.1160172828711 -88.7213801323611 2524847.24564277 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:11:31 2020-May-20 01:11

Alternate Designations
 A911 SA = 1952 JK = 1963 KL = 1979 QG10 = A902 YD = A904 JA = A920 GE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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