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19505 (1998 MC)
Classification: Main-belt Asteroid          SPK-ID: 2019505
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09254488060377981 3.9424e-08  
a 2.586799779586274 1.0546e-08 au
q 2.347404702838578 1.0268e-07 au
i 6.107431651073128 4.4239e-06 deg
node 49.11414469308423 3.1388e-05 deg
peri 158.216454026378 3.7188e-05 deg
M 195.9923233509885 2.2792e-05 deg
tp 2459892.815931076194
(2022-Nov-09.31593108)
9.8545e-05 TDB
period 1519.646764589005
4.16
9.2929e-06
2.544e-08
d
yr
n .2368971582006846 1.4487e-09 deg/d
Q 2.82619485633397 1.1522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1926  
   data-arc span      10660 days (29.19 yr)  
   first obs. used      1991-11-04  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50841  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:56:01  

Additional Information
 Earth MOID = 1.34242 au 
 Jupiter MOID = 2.13381 au 
 T_jup = 3.408 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.19   n/a E2021B10  
diameter diameter 3.839 km 0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.80168 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.301   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19505 (1998 MC)          Discovered 1998-Jun-16 by Zoltowski, F. B. at Woomera
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 MC = 1999 TG34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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