Bill Gray Mar 14, 2016
On 2016-03-05 13:09, limax7@... [find_orb] wrote:
>
>
> Hi
>
> When I generate state vectors ephemeris (center Sun) I have different results in XV YV
> ZV vectors compare to results in elements.txt
>
> Example (elements.txt)
>
> Orbital elements: 2016 EZ26
> Perihelion 2016 Apr 25.991590 +/- 0.0546 TT = 23:47:53 (JD 2457504.491590)
> Epoch 2016 Mar 5.0 TT = JDT 2457452.5 Earth MOID: 0.0016 Ma: 0.0925
> M 346.203985 +/- 0.39 Find_Orb
> n 0.265350889 +/- 0.00728 Peri. 157.223541 +/- 0.36
> a 2.398404060 +/- 0.0439 Node 66.985525 +/- 0.35
> e 0.58865930 +/- 0.00738 Incl. 6.764901 +/- 0.053
> P 3.71 H 22.6 G 0.15 U 9.4
> q 0.986561204 +/- 0.000406 Q 3.810246916 +/- 0.0892
> From 31 observations 2016 Mar. 1-5; mean residual 0".36
> # State vector (heliocentric ecliptic J2000):
> # -1.151924729028 0.275602741425 0.138548677285 AU
> # 2.365142370263 -19.131109078500 -1.145464123342 mAU/day
>
> And ephemeris results:
>
> 2457452.50000 1.000000 1
> 2457452.50000 -1.1519247290 0.1977490727 0.2367444008 0.0023651424
> -0.0170968099 -0.0086608609
>
> Created Sat Mar 05 18:59:05 2016
> Ephemeris start: 5 Mar 2016 0:00:00
> Ephemeris end: 6 Mar 2016 0:00:00
> Times are all TDT
> Positions/velocities are equatorial J2000, in AU and AU/day
>
>
> -----
>
> ups, now I see, in ephemeris is equatorial J2000 and elements.txt is ecliptic J2000
> Can I change ephemeris or settings to output in ecliptic J2000 (to implement in Celestia
> soft).
>
> Adam
>
>