RE: Noss 3-3 C lightcurve posted

From: Derek C Breit (breit_ideas@poyntsource.com)
Date: Thu Oct 04 2012 - 19:46:54 UTC

• Next message: Derek C Breit: "RE: Noss 3-3 C lightcurve posted"

```Derek,
I'm having trouble interpreting this.  I don't think that you
observed it for 2417 seconds so that must be frames, right?  So, what is
the frame rate?  Or (what I really want), what is the time interval
between blips?
Randy

Define "blips"..

If you mean each point on the lightcurve, yes it is frames, 29.97 fps, and
~0.033s per frame / point on the light curve..

If you mean the interval of the "heartbeat".....

Starting with the full lightcurve on the web page, going left to right, the
first peak mag of NOSS 3-3 C, where it is above the 4,000 level at around
frame 601.. that occurred at a UT time of 3h	31m	52.8003s +/-
0.008s.. i.e. the center of an interlaced frame..

Moving to the right, here are the times of the next three peak points..

3	31	54.6357
3	31	56.9045
3	31	59.1067

>From frame 241 to frame 1981 (based on the split light curve - "First Part"
and "Second Part" - and using the rough frame numbers listed across the
bottom of the lightcurves, you have the following first and last peak point
times..

Point #239    3h	31m	40.2209s
Point # 1990  3h	32m	36.6469s

There are 29 "events" including those at the start and finish and a duration
for 56.4260s / 28 = a 2.015s period.

-----Original Message-----
From: seesat-l-bounces+breit_ideas=poyntsource.com@satobs.org
[mailto:seesat-l-bounces+breit_ideas=poyntsource.com@satobs.org] On Behalf
Of Randy John
Sent: Monday, October 01, 2012 5:26 PM
To: Seesat List; videoastro@yahoogroups.com
Subject: RE: Noss 3-3 C lightcurve posted

Derek,
I'm having trouble interpreting this.  I don't think that you
observed it for 2417 seconds so that must be frames, right?  So, what is
the frame rate?  Or (what I really want), what is the time interval
between blips?
Randy

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