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74818 Iten (1999 TW10)
Classification: Main-belt Asteroid          SPK-ID: 2074818
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1434041125068321 4.7663e-08  
a 2.379404247602164 1.1108e-08 au
q 2.038187893179789 1.1014e-07 au
i 8.78797384938667 5.4531e-06 deg
node 45.08995307366185 3.3261e-05 deg
peri 41.73509687327181 4.0393e-05 deg
M 184.1821386788793 2.1514e-05 deg
tp 2459655.228532965440
(2022-Mar-16.72853297)
8.1572e-05 TDB
period 1340.604817374399
3.67
9.3878e-06
2.57e-08
d
yr
n .2685355112366873 1.8805e-09 deg/d
Q 2.720620602024539 1.2701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      7197 days (19.70 yr)  
   first obs. used      1999-10-02  
   last obs. used      2019-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:13  

Additional Information
 Earth MOID = 1.06297 au 
 Jupiter MOID = 2.52249 au 
 T_jup = 3.510 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456656.5 (2013-Dec-30.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439451567401714 4.7734e-08  
q 2.035736706925092 1.1022e-07 au
tp 2456976.331313710521
(2014-Nov-14.83131371)
7.6799e-05 TDB
node 45.15105090554981 3.3248e-05 deg
peri 41.85091181078304 4.0294e-05 deg
i 8.791732743170739 5.4546e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      7197 days (19.70 yr)  
   first obs. used      1999-10-02  
   last obs. used      2019-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:13  

Additional Information
 Jupiter MOID = 2.52249 au 
 T_jup = 3.510 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.27857560507439E-15 -5.244094044246605E-15 -4.461562190385288E-13 2.437177902118874E-14 -2.326135069518176E-13 -6.603910116452752E-15
q -5.244094044246605E-15 1.21480899965863E-14 1.119686896807385E-12 -5.610762766563496E-14 5.528334784967581E-13 1.516365595351246E-14
tp -4.461562190385288E-13 1.119686896807385E-12 5.898149276580589E-9 4.384772878874785E-12 1.760884249833172E-9 -6.039953501355444E-12
node 2.437177902118874E-14 -5.610762766563496E-14 4.384772878874785E-12 1.105409192590686E-9 -1.091206955227597E-9 -2.518094417663463E-11
peri -2.326135069518176E-13 5.528334784967581E-13 1.760884249833172E-9 -1.091206955227597E-9 1.623588841834693E-9 2.325646730555799E-11
i -6.603910116452752E-15 1.516365595351246E-14 -6.039953501355444E-12 -2.518094417663463E-11 2.325646730555799E-11 2.975256115697602E-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 15.6   n/a MPO474634  
diameter diameter 2.286 km 0.500 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74818 Iten           Discovered 1999 Oct. 7 by S. Sposetti at Gnosca.
Marco Iten (b. 1950) is a goldsmith and a skilled model train hobbyist, living in Gordola, Switzerland. He is also an amateur astronomer who observes asteroidal occultations and meteoroid impacts on the Moon.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

[ show close-approach data ]
Alternate Designations
 1999 TW10 = 2001 FM169 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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