133243 Essen

Essen

Discovery
Discovered by	Walter-Hohmann-Sternwarte
Discovery date	2 September 2003
Designations
MPC designation	133243
Alternative designations	2003 RT1
Orbital characteristics
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	5729 days (15.69 yr)
Ap2,470 AE – 2,722 AE	2.7284 AU (408.16 Gm)
Peri2,470 AE – 2,722 AE	2.4646 AU (368.70 Gm)
Semi-major axis	2.5965 AU (388.43 Gm)
Eccentricity	0.050794
Orbital period (sidereal)	4.18 yr (1528.2 d)
Mean anomaly	0.82640°
Mean motion	0.23557°/day
Inclination	7.1095°
Longitude of ascending node	264.08°
Argument of peri2,470 AE – 2,722 AE	64.833°
Earth MOID	1.46023 AU (218.447 Gm)
Jupiter MOID	2.44082 AU (365.141 Gm)
Physical characteristics
Axial tilt	7,106°
Absolute magnitude (H)	15.6

The main belt asteroid (133243) Essen, was discovered on September 2, 2003 by the Walter-Hohmann-Sternwarte in Essen, Germany. The asteroid got the preliminary name 2003 RT1 after notice was given to the Minor Planet Center. More observatories observed the asteroid the following year and the trajectory of 2003 RT1 could be determined. The name Essen was chosen by the Walter-Hohmann Observatory in honor of the city it is located in.

Statement of grounds:

Essen, in the German agglomeration „Ruhrgebiet“, is the former center of German heavy industry. It has emerged as a modern city with various scientific and cultural activities. Essen is the location of the observatory where this minor planet was discovered. (Essen, im deutschen Ballungsraum „Ruhrgebiet“ gelegen, ist das frühere Zentrum der Deutschen Schwerindustrie. Es hat sich zu einer modernen Stadt mit verschiedenen wissenschaftlichen und kulturellen Aktivitäten entwickelt. Essen ist der Standort der Sternwarte, an der dieser Kleinplanet entdeckt wurde.

References

• "JPL Small-Body Database Browser". ssd.jpl.nasa.gov. Retrieved 2011-10-23.

External links

• 133243 Essen at the JPL Small-Body Database