Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08971330205237922 2.9366e-08  
a 3.020244273919615 1.2462e-08 au
q 2.749288187101496 8.7885e-08 au
i 11.19057213310929 4.1722e-06 deg
node 54.36162268513966 1.7573e-05 deg
peri 257.2763850002059 3.0143e-05 deg
M 109.9720135379849 2.5209e-05 deg
tp 2458414.845873850733
(2018-Oct-23.34587385)
0.00013395 TDB
period 1917.174003010432
5.25
1.1865e-05
3.248e-08
d
yr
n .1877763830694094 1.1621e-09 deg/d
Q 3.291200360737735 1.358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2966  
   data-arc span      30998 days (84.87 yr)  
   first obs. used      1935-09-24  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42648  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:33:36  

Additional Information
 Earth MOID = 1.76271 au 
 Jupiter MOID = 1.94602 au 
 T_jup = 3.212 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456599.5 (2013-Nov-03.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0934136679964724 2.9593e-08  
q 2.736660114944987 8.9022e-08 au
tp 2456494.149057828941
(2013-Jul-20.64905783)
0.00012725 TDB
node 54.49030137755418 1.7625e-05 deg
peri 256.4264859703653 2.9261e-05 deg
i 11.17865560747191 4.1671e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2966  
   data-arc span      30998 days (84.87 yr)  
   first obs. used      1935-09-24  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42648  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:33:36  

Additional Information
 Jupiter MOID = 1.94602 au 
 T_jup = 3.212 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.757327546711445E-16 -2.613435286289333E-15 4.988945294333097E-13 -5.547715668170867E-16 8.540349797597966E-14 6.308265572078572E-16
q -2.613435286289333E-15 7.924983106991919E-15 -1.517891505145454E-12 7.298941113103371E-16 -2.596599009060944E-13 -1.260590168792054E-15
tp 4.988945294333097E-13 -1.517891505145454E-12 1.619258355723494E-8 2.714186260615954E-12 2.985691714654237E-9 2.279217470993834E-12
node -5.547715668170867E-16 7.298941113103371E-16 2.714186260615954E-12 3.106367931895249E-10 -3.04068553024828E-10 -1.386158171468652E-11
peri 8.540349797597966E-14 -2.596599009060944E-13 2.985691714654237E-9 -3.04068553024828E-10 8.561934287477261E-10 1.398047798846675E-11
i 6.308265572078572E-16 -1.260590168792054E-15 2.279217470993834E-12 -1.386158171468652E-11 1.398047798846675E-11 1.73644340408002E-11

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 1.94102670283831 1.94102634749135 1.94102705818549 4.03501437072395 3.9253768954416 2430263.473687542 1.30720796041406 71.649470110742 12.3370684209363 -81.0692827796189 3872177.34682025 T 38 CATAB v2.0f-lin.ifort 2020-Aug-24 22:33:47 2020-Aug-24 22:33
1988-Oct-05 14:25 < 00:01 Jupiter 1.95427888155238 1.95427852653219 1.95427923657267 4.31072330990538 4.20897808450658 2447440.100433218 0.46073962800324 60.5093450248643 13.8460201645995 -82.1823945996347 4057470.20674024 T 38 CATAB v2.0f-lin.ifort 2020-Aug-24 22:33:47 2020-Aug-24 22:33
2035-Oct-18 14:23 < 00:01 Jupiter 1.99632469145504 1.99632430284031 1.99632508006988 4.55822204236999 4.46416915803546 2464619.099113016 0.414295319578344 67.5085931930095 15.9730873981946 -83.120374592589 4087761.72779868 T 38 CATAB v2.0f-lin.ifort 2020-Aug-24 22:33:47 2020-Aug-24 22:33
2167-Jul-13 12:34 00:03 Jupiter 1.97851322839901 1.97851278828372 1.97851366851598 3.73499899386918 3.61856273310017 2512734.023865286 2.84160004114941 132.924441860412 11.5885192442761 -79.7429166821685 3562201.7728756 T 38 CATAB v2.0f-lin.ifort 2020-Aug-24 22:33:47 2020-Aug-24 22:33

Alternate Designations
 1935 SS = A914 TC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-25 12:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin