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19508 (1998 MC17)
Classification: Outer Main-belt Asteroid          SPK-ID: 2019508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2114304607451045 3.4421e-08  
a 3.218545655830819 1.9699e-08 au
q 2.538047064889354 1.0544e-07 au
i 1.219717629158233 4.1768e-06 deg
node 47.46538777912218 0.0001834 deg
peri 61.62236624363385 0.0001837 deg
M 178.1541993708223 1.2911e-05 deg
tp 2458156.786019110153
(2018-Feb-07.28601911)
6.9336e-05 TDB
period 2109.055158100766
5.77
1.9362e-05
5.301e-08
d
yr
n .1706925485648204 1.5671e-09 deg/d
Q 3.899044246772284 2.3864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1202  
   data-arc span      8974 days (24.57 yr)  
   first obs. used      1994-12-04  
   last obs. used      2019-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56194  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:56:02  

Additional Information
 Earth MOID = 1.55494 au 
 Jupiter MOID = 1.24092 au 
 T_jup = 3.154 
[ 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 14.0   n/a MPO347675  
diameter diameter 9.143 km 0.489 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19508 (1998 MC17)          Discovered 1998-Jun-27 by Spacewatch at Kitt Peak
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 MC17 = 1994 XA6 = 1999 SM14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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