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30938 Montmartre (1994 BB4)
Classification: Main-belt Asteroid          SPK-ID: 2030938
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1103120181084281 5.7813e-08  
a 2.623981264529457 1.3928e-08 au
q 2.334524595760508 1.5045e-07 au
i 11.70622776831112 4.4427e-06 deg
node 287.6734536084193 3.2024e-05 deg
peri 280.3872649430116 3.8596e-05 deg
M 45.20781218162018 2.1204e-05 deg
tp 2459005.537757834967
(2020-Jun-05.03775783)
9.1674e-05 TDB
period 1552.528286426283
4.25
1.2361e-05
3.384e-08
d
yr
n .231879833138933 1.8462e-09 deg/d
Q 2.913437933298407 1.5464e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1220  
   data-arc span      9683 days (26.51 yr)  
   first obs. used      1994-01-16  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:42:30  

Additional Information
 Earth MOID = 1.3618 au 
 Jupiter MOID = 2.21553 au 
 T_jup = 3.365 
[ 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 14.38   n/a E2021B10  

30938 Montmartre           Discovered 1994 Jan. 16 by E. W. Elst and C. Pollas at Caussols.
Montmartre, a large hill in Paris (France), is primarily known for the white domed basilica on its summit. A beautiful place, it has always been preferred by musicians, painters and writers.
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 2015-08-29Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 1994 BB4 = 2000 SM91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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