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19506 (1998 MN4)
Classification: Main-belt Asteroid          SPK-ID: 2019506
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605763433662655 3.3469e-08  
a 2.844540055980078 1.2864e-08 au
q 2.387774215231925 9.8824e-08 au
i 20.74598943857997 3.7769e-06 deg
node 137.9755061958118 1.0419e-05 deg
peri 51.47912521314086 1.5969e-05 deg
M 312.5723994140664 1.1865e-05 deg
tp 2459431.358123116753
(2021-Aug-04.85812312)
5.8159e-05 TDB
period 1752.33246664981
4.80
1.1887e-05
3.254e-08
d
yr
n .2054404668357624 1.3936e-09 deg/d
Q 3.301305896728231 1.493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1527  
   data-arc span      10634 days (29.11 yr)  
   first obs. used      1992-02-02  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49121  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:56:02  

Additional Information
 Earth MOID = 1.44208 au 
 Jupiter MOID = 1.82683 au 
 T_jup = 3.194 
[ 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 14.02   n/a E2021B10  
rotation period rot_per 3.878 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

19506 (1998 MN4)          Discovered 1998-Jun-18 by Lopez, A., Pacheco, R. at Mallorca
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 MN4 = 1992 CT3 = 1997 EE34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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