Data for the Great Perihelic Opposition, 2003

 

Opposition date : 2003 August 28

 

 

 

Dec : –15 deg 49 min (authority: Jean Meeus)

 

At opposition, Ls = 249.5 deg

– effectively that of perihelion (Ls = 250 deg)

 

De : –18.4 (latitude of sub-Earth point on Mars)

 

Ds : –23.1 (latitude of subsolar point on Mars)

 

Closest approach to Earth : 2003 August 27

 

Maximum disk diameter : 25.11 arcsec

 

Distance at closest approach : 0.37272 AU (55.76 million km)

– some 20,000 km closer than the closest opposition of the twentieth

century (1924) and the closest approach since telescopic records began

 

Solar conjunction : 2002 April 18

 

Seasons (authority : Jean Meeus)

 

 

Ls = 90 deg

Ls = 180 deg

Ls = 270 deg

Ls = 0 deg

N summer solstice

N autumnal equinox

N winter solstice

N spring equinox

S winter solstice

S spring equinox

S summer solstice

S autumnal equinox

2002 November 3

2003 May 5

2003 September 29

2004 March 5