[AZ-Observing] Re: DA14 ephemeris?
- From: Bob Christ <bchrist@xxxxxxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Wed, 30 Jan 2013 13:33:09 -0700
Actually they are not Dan. When I generated the ephemeris I accounted for the
-7 offset and the Phoenix location.
On Jan 30, 2013, at 1:29 PM, Dan Heim wrote:
> Thanks Bob,
> Those are UT times, so the latest entry corresponds to 17:00 MST, which
> is 1.5 hours before local (AZ) sunset. I'm gonna need an extension of
> that ephemeris to at least 05:00 UT Feb 16. Thanks for the link though.
> I'll go there and see what I can generate. Tom Polakis notes DA14 will
> be at closest approach at 12:30 MST, so it will be considerably dimmer
> than M+7 by the time it gets dark here. Still, I'd like to give it a shot.
>
> Dan
>
> On 1/30/2013 8:03 AM, Bob Christ wrote:
>> Dan, I believe its asteroid 2012 DA14, yes (?), and if so, here is its
>> ephemeris for February 15 for the Phoenix area. The data is derived from
>> the JPL/Horizons Website (url follows), and while normally one can generate
>> the positions in both alt/AZ and ra/dec, this object only returned the
>> ra/dec:
>> http://ssd.jpl.nasa.gov/horizons.cgi?s_loc=1#top
>>
>> Here is the cut& pasted ephemeris in 30-minute increments .............
>>
>> Bob Christ
>>
>> *******************************************************************************
>> 2013-Feb-15 18:00 *m 10 48 24.62 -55 52 07.0 Vel
>> 2013-Feb-15 18:30 *m 11 03 00.50 -43 17 37.5 Vel
>> 2013-Feb-15 19:00 *m 11 15 01.45 -26 36 54.6 Hya
>> 2013-Feb-15 19:30 *m 11 25 19.28 -06 43 19.7 Leo
>> 2013-Feb-15 20:00 *m 11 34 39.61 +13 10 49.1 Leo
>> 2013-Feb-15 20:30 *m 11 43 41.00 +29 53 22.2 UMa
>> 2013-Feb-15 21:00 *m 11 52 49.23 +42 31 44.2 UMa
>> 2013-Feb-15 21:30 *m 12 02 19.07 +51 47 35.2 UMa
>> 2013-Feb-15 22:00 *r 12 12 19.19 +58 38 16.6 UMa
>> 2013-Feb-15 22:30 *m 12 22 55.38 +63 48 32.2 Dra
>> 2013-Feb-15 23:00 *m 12 34 12.19 +67 48 46.2 Dra
>> 2013-Feb-15 23:30 *m 12 46 13.63 +70 59 02.0 Dra
>> 2013-Feb-16 00:00 *m 12 59 03.48 +73 32 39.0 Dra
>>
>
>
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