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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08971330211058759 2.9263e-08  
a 3.020244273939486 1.2317e-08 au
q 2.74928818694378 8.7409e-08 au
i 11.19057214969489 4.0918e-06 deg
node 54.36162258818734 1.7235e-05 deg
peri 257.2763849191367 2.9512e-05 deg
M 109.9720137036441 2.482e-05 deg
tp 2458414.845872962739
(2018-Oct-23.34587296)		 0.00013177 TDB
period 1917.174003029352
5.25		 1.1728e-05
3.211e-08		 d
yr
n .1877763830675563 1.1487e-09 deg/d
Q 3.291200360935191 1.3422e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3093  
   data-arc span      31096 days (85.14 yr)  
   first obs. used      1935-09-24  
   last obs. used      2020-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41906  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:00:15  

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. 2020-October); 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

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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 1.94102670209724 1.94102635437739 1.94102704981732 4.03501439909611 3.92537692456377 2430263.473682153 1.29356461454426 70.8158317114229 12.1979134655089 -81.2986845558417 3939851.58655034 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:00:23 2020-Dec-18 02:00
1988-Oct-05 14:25 < 00:01 Jupiter 1.95427888073985 1.95427853300358 1.95427922847623 4.31072329957561 4.2089780738843 2447440.100434678 0.458098162366733 60.2316193240579 13.6141421336131 -82.4127466300363 4142590.94602252 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:00:23 2020-Dec-18 02:00
2035-Oct-18 14:23 < 00:01 Jupiter 1.99632469050955 1.99632431516958 1.99632506584963 4.55822205586142 4.46416917176612 2464619.099109910 0.405182387745987 66.8750087160476 15.5289930950222 -83.4946058227364 4221948.78918636 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:00:23 2020-Dec-18 02:00
2167-Jul-13 12:34 00:03 Jupiter 1.9785132272596 1.97851278923718 1.97851366528371 3.73499902642674 3.61856276663721 2512734.023857500 2.79732572874453 131.096030945791 11.4490792480319 -79.6341694825992 3641306.21770529 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:00:23 2020-Dec-18 02:00

Alternate Designations
 1935 SS = A914 TC 
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