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1388 Aphrodite (1935 SS)
Classification: Main-belt Asteroid          SPK-ID: 2001388
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08971330070314676 2.9479e-08  
a 3.020244274636398 1.2496e-08 au
q 2.749288191828986 8.8307e-08 au
i 11.19057221384503 4.1738e-06 deg
node 54.36162240349375 1.7685e-05 deg
peri 257.2763849199765 3.0219e-05 deg
M 109.9720135651012 2.5217e-05 deg
tp 2458414.845873497839
(2018-Oct-23.34587350)
0.00013399 TDB
period 1917.174003692926
5.25
1.1899e-05
3.258e-08
d
yr
n .187776383002563 1.1654e-09 deg/d
Q 3.29120035744381 1.3617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2889  
   data-arc span      30815 days (84.37 yr)  
   first obs. used      1935-09-24  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42855  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:53:30  

Additional Information
 Earth MOID = 1.76271 au 
 Jupiter MOID = 1.94602 au 
 T_jup = 3.212 
[ 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 11.0   n/a MPO502166  
diameter diameter 21.355 km 0.282 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.9432 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Ivarsen, K.; Willis, S.; Ingleby, L.; Matthews, D.; Simet, M. (2004) Minor Planet Bull. 31, 29-33.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Oey, J.; Krajewski, R. (2008) Minor Planet Bull. 35, 47-48.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2016) Astron. Astrophys., submitted.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2018) Icarus 299, 84-96.]
geometric albedo albedo 0.144   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.860   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=15.04 deg.
U-B UB 0.490   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=15.04 deg.

1388 Aphrodite (1935 SS)          Discovered 1935-Sep-24 by Delporte, E. at Uccle
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
1941-Sep-25 23:22 00:01 Jupiter 1.94102670228404 1.94102634664691 1.9410270579214 4.03501438203765 3.92537690703955 2430263.473676787 1.31022043354611 71.862297636222 12.3461929019846 -81.0875759925852 3867330.23053327 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:53:46 2020-Feb-22 15:53
1988-Oct-05 14:25 < 00:01 Jupiter 1.95427888042055 1.95427852526194 1.95427923557926 4.31072330837925 4.20897808288392 2447440.100432504 0.461196516255377 60.6218075798044 13.8529935486142 -82.1980728498182 4054281.00040184 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:53:46 2020-Feb-22 15:53
2035-Oct-18 14:23 < 00:01 Jupiter 1.99632468595632 1.99632429675434 1.99632507515841 4.5582220453212 4.46416916078706 2464619.099118804 0.416896218836886 67.5881493517697 15.9963656602827 -83.1144674378121 4081731.28397307 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:53:46 2020-Feb-22 15:53
2167-Jul-13 12:34 00:03 Jupiter 1.97851323706636 1.97851279518705 1.97851367894736 3.73499892914424 3.61856266681083 2512734.023904623 2.85174121011886 133.441643513913 11.5995374591049 -79.7269837625586 3557615.87071616 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:53:46 2020-Feb-22 15:53

Alternate Designations
 1935 SS = A914 TC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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