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JPL Small-Body Database Browser
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295041 (2008 ER98)
Classification: Main-belt Asteroid          SPK-ID: 2295041
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05562961539294044 7.1754e-08  
a 2.257698324022386 2.1172e-08 au
q 2.132103434583734 1.698e-07 au
i 7.571401162894513 5.838e-06 deg
node 108.5925873294696 5.0201e-05 deg
peri 38.67006647902523 7.145e-05 deg
M 110.9622338466775 4.9083e-05 deg
tp 2458218.582126815649
(2018-Apr-10.08212682)
0.00016839 TDB
period 1239.074138831274
3.39
1.7429e-05
4.772e-08
d
yr
n .2905395155285552 4.0868e-09 deg/d
Q 2.383293213461037 2.2349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6214 days (17.01 yr)  
   first obs. used      2001-01-21  
   last obs. used      2018-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66015  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 08:57:59  

Additional Information
 Earth MOID = 1.15071 au 
 Jupiter MOID = 2.62132 au 
 T_jup = 3.609 
[ 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 16.8   n/a MPO437319  
rotation period rot_per 3.172 h n/a LCDB (Rev. 2019-January); 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.]

295041 (2008 ER98)          Discovered 2008-Mar-03 by CSS at Catalina
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 ER98 = 2008 BM44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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