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JPL Small-Body Database Browser
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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1988492758431629 4.183e-08  
a 3.057679991523533 1.3522e-08 au
q 2.44966253944895 1.2764e-07 au
i 6.92648947495256 4.8039e-06 deg
node 38.53232127600126 3.1578e-05 deg
peri 174.5477362455084 3.2894e-05 deg
M 263.1501276945542 1.0653e-05 deg
tp 2459525.891479796781
(2021-Nov-07.39147980)
5.938e-05 TDB
period 1952.929087302532
5.35
1.2955e-05
3.547e-08
d
yr
n .1843384904964712 1.2228e-09 deg/d
Q 3.665697443598116 1.6211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2909  
   data-arc span      42774 days (117.11 yr)  
   first obs. used      1902-12-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41986  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:34:59  

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 1.87237281812268 1.87237071462076 1.87237492162642 2.18576656723252 1.96794743026993 2421766.368257097 2.30611331559802 161.905491901113 10.4878505222599 -77.9704507140976 1770093.78146027 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
1927-Oct-31 10:26 00:02 Jupiter 1.43781651674514 1.43781513849117 1.43781789512783 1.53003654851572 1.07833443557319 2425184.934879942 2.03520480066015 976.41611700597 184.486891522241 -82.6082492085431 1245163.55304809 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
1976-Aug-07 15:09 < 00:01 Jupiter 1.37487080317716 1.37487016031146 1.37487144605505 1.54910702054955 1.08054802602164 2442998.131350125 0.815625487165588 330.682035767078 184.994861580522 -62.3066797122104 1325628.44287685 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
1985-Dec-10 15:41 < 00:01 Jupiter 1.96571086843423 1.96571021084346 1.96571152602488 2.72156724197262 2.55834528358715 2446410.153587718 0.623314173105218 48.2770938159405 20.470535891316 86.9421612221454 2340020.85574364 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
2034-Dec-22 05:14 < 00:01 Jupiter 1.34804299787748 1.34804248500201 1.34804351075901 1.58472729194878 1.12012977391488 2464318.718113765 0.56174090953496 428.730247959732 111.495024339773 -65.8537131170841 1736353.75135812 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
2083-Oct-05 22:05 00:02 Jupiter 1.48398436918834 1.48398304278594 1.48398569564549 1.46174731009716 0.99757375467482 2482138.420001504 1.82806513808444 589.7888371496 260.451678220581 -81.7664073842439 1311771.36743733 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
2093-Feb-15 10:52 00:02 Jupiter 1.80808460643369 1.80808274421036 1.80808646865835 2.2288948712644 2.0077460949348 2485558.953014394 2.08354004664423 150.276338247034 26.6080889836451 -81.1479837479746 1996734.46324486 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
2142-Feb-08 11:13 00:03 Jupiter 1.30091200955457 1.30091140180499 1.3009126173037 1.57984652577972 1.09257358278294 2503447.967383740 2.61020893045268 376.812925890839 122.497473690238 -58.3168858302457 1762533.1665496 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
2190-Dec-31 11:09 00:05 Jupiter 1.64096698694502 1.64096311184213 1.64097086231897 1.42776990909384 1.0030859004763 2521305.964647545 4.85532900562139 1360.66625686903 201.46175247863 80.2811747688494 1595772.82243087 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35
2200-May-15 01:09 00:05 Jupiter 1.63018393237021 1.63017984317115 1.6301880219594 1.88082705217057 1.58061261293532 2524727.548086434 4.95710404952263 1413.39269160806 52.7017330637504 -88.7532541353727 2471720.10303755 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 15:35:12 2020-Feb-22 15:35

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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