Planetary Ephemerides
CALL sla_PLANET (DATE, NP, PV, JSTAT)
DATE  D  Modified Julian Date (JD$$2400000.5) 
 
NP  I  planet: 
 

 1 = Mercury 
 

 2 = Venus 
 

 3 = EarthMoon Barycentre 



 4 = Mars 



 5 = Jupiter 



 6 = Saturn 



 7 = Uranus 



 8 = Neptune 



 9 = Pluto 
PV  D(6)  heliocentric $\left[\phantom{\rule{0.3em}{0ex}}x,y,z,\u1e8b,\u1e8f,\u017c\phantom{\rule{0.3em}{0ex}}\right]$, equatorial, J2000 
 

 (AU, AU/s) 
 
JSTAT  I  status: 
 

 $+$1 = warning: date outside of range 



 0 = OK 



 $$1 = illegal NP (outside 19) 



 $$2 = solution didn’t converge 
position (km)  speed (metre/sec)  
Mercury  334  0.437  
Venus  1060  0.855  
EMB  2010  0.815  
Mars  7690  1.98  
Jupiter  71700  7.70  
Saturn  199000  19.4  
Uranus  564000  16.4  
Neptune  158000  14.4  
Pluto  36400  0.137 
From comparisons with DE102, Simon et al. quote the following longitude accuracies over the interval 18002200:
Mercury  $4\phantom{\rule{0.54753pt}{0ex}}$${}^{\prime}{\phantom{\rule{1.09506pt}{0ex}}}^{\prime}$  
Venus  $5\phantom{\rule{0.54753pt}{0ex}}$${}^{\prime}{\phantom{\rule{1.09506pt}{0ex}}}^{\prime}$  
EMB  $6\phantom{\rule{0.54753pt}{0ex}}$${}^{\prime}{\phantom{\rule{1.09506pt}{0ex}}}^{\prime}$  
Mars  $17\phantom{\rule{0.54753pt}{0ex}}$${}^{\prime}{\phantom{\rule{1.09506pt}{0ex}}}^{\prime}$  
Jupiter  $71\phantom{\rule{0.54753pt}{0ex}}$${}^{\prime}{\phantom{\rule{1.09506pt}{0ex}}}^{\prime}$  
Saturn  $81\phantom{\rule{0.54753pt}{0ex}}$${}^{\prime}{\phantom{\rule{1.09506pt}{0ex}}}^{\prime}$  
Uranus  $86\phantom{\rule{0.54753pt}{0ex}}$${}^{\prime}{\phantom{\rule{1.09506pt}{0ex}}}^{\prime}$  
Neptune  $11\phantom{\rule{0.54753pt}{0ex}}$${}^{\prime}{\phantom{\rule{1.09506pt}{0ex}}}^{\prime}$ 
In the case of Pluto, Meeus quotes an accuracy of ′′06 in longitude and ′′02 in latitude for the period 18852099.
For all except Pluto, over the period 10003000, the accuracy is better than 1.5 times that
over 18002200. Outside the interval 10003000 the accuracy declines. For Pluto the accuracy
declines rapidly outside the period 18852099. Outside these ranges (18852099 for
Pluto, 10003000 for the rest) a “date out of range” warning status (JSTAT=+1
) is
returned.
None of the above changes affects the result significantly.