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 ]  
62 Erato (A860 RD)
Classification: Main-belt Asteroid          SPK-ID: 2000062
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .167660410335139 3.325e-08  
a 3.128634484992347 1.1815e-08 au
q 2.604086343449863 1.0213e-07 au
i 2.236571482995822 3.857e-06 deg
node 125.1225179079269 0.00010018 deg
peri 277.1761759924165 0.00010086 deg
M 310.1937689559663 1.2955e-05 deg
tp 2459280.148083220931
(2021-Mar-06.64808322)
7.3104e-05 TDB
period 2021.299501071061
5.53
1.1449e-05
3.135e-08
d
yr
n .178103244872539 1.0088e-09 deg/d
Q 3.65318262653483 1.3795e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3275  
   data-arc span      41830 days (114.52 yr)  
   first obs. used      1906-01-24  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:08:46  

Additional Information
 Earth MOID = 1.61392 au 
 Jupiter MOID = 1.75627 au 
 T_jup = 3.191 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455781.5 (2011-Aug-08.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172093080753138 3.4076e-08  
q 2.58873975986768 1.0557e-07 au
tp 2455216.005022408242
(2010-Jan-19.50502241)
6.4687e-05 TDB
node 125.5895536857847 0.00010099 deg
peri 273.7756210151248 0.00010157 deg
i 2.229803941260378 3.8429e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3275  
   data-arc span      41830 days (114.52 yr)  
   first obs. used      1906-01-24  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:08:46  

Additional Information
 Jupiter MOID = 1.75627 au 
 T_jup = 3.191 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.161176290918175E-15 -3.5841852541962E-15 -4.763875325191286E-14 1.431514455742223E-15 -1.249656730173629E-14 2.46965757643505E-16
q -3.5841852541962E-15 1.114457404045512E-14 2.204629870057776E-13 -6.127879537035617E-15 5.627903597265513E-14 -8.607102995284396E-16
tp -4.763875325191286E-14 2.204629870057776E-13 4.184455635527494E-9 3.577369496841489E-12 7.278074918201272E-10 1.895685491042853E-13
node 1.431514455742223E-15 -6.127879537035617E-15 3.577369496841489E-12 1.019824529063949E-8 -1.018977032447885E-8 1.23459918110539E-11
peri -1.249656730173629E-14 5.627903597265513E-14 7.278074918201272E-10 -1.018977032447885E-8 1.03170596803727E-8 -1.232224710616451E-11
i 2.46965757643505E-16 -8.607102995284396E-16 1.895685491042853E-13 1.23459918110539E-11 -1.232224710616451E-11 1.47677020334355E-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 8.7   n/a MPO492748 IRAS observations used: 15
diameter diameter 106.921 km 0.658 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 9.2213 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durkee, R.I. (2005) Minor Planet Bull. 32, 84.]
[Gonclaves, R.M.D.; Behrend, R. (2006) Minor Planet Bull. 33, 7.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.048   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.708   0.046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=15.59, mean=16.44, max.=17.86) deg.
U-B UB 0.378   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=15.59, mean=16.44, max.=17.86) deg.
Tholen spectral type spec_T BU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   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)

62 Erato (A860 RD)          Discovered 1860-Sep-14 by Lesser, O. and Forster, W. at Berlin
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A860 RD = 1935 FW = 1953 OS = 2002 JN104 = A906 BE = A907 GE = A910 VA 
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-29 12:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin