Newsgroups: alt.astronomy,alt.ufo.reports
From: kymhorsell@gmail.com
Subject: rough calculation of object size detected between earth and moon

[uploaded 48 times; last 14/10/2024]

We've been looking at various unusual wide-area lightcurve variations
that have been picked up in the TESS dataset.  TESS orbits between the
earth and moon on a phase-locked timetable of 2 orbits per lunar month.

We have looked at both the TESS "central pixel" flux and "background"
flux.  It seems there are unusual wide-area fluctuations in each
that hint at both dark and bright objects moving between TESS and the
various target stars the project is monitoring to look for planetary transits.

Given the variations we're picking up here involve dozens of stars
within the short timestep (we're using 2.4 hrs here; TESS itself takes
4 wide-angle pictures of each target star every 20 sec or so) such
variations are not likely related to anything happening at the distant
stars. We can calculate the light cone involved must be much less than
2.4 light hours -- i.e. 2.6e9 km -- and, presumably, inside the moon's
orbit given the regular appearance of the patterns at most locations
in the sky as seen from TESS's moving position.

We've tinkered up the previous plotting software to concentrate now on
the synchronous variations of strictly the target stars.  As before
target stars are randomly allocated to 10x10 deg tiles of the sky so
that most tiles have at least 2 stars and no tile has more than 8.
(This attempts to "even out" possible light variations so no tile will
end up appearing to flash or be more stable than any other tile just
because it has more or fewer TESS target stars in it).

The output now shows the % decline of each part of the sky
relative to its long-term average (discarding 10% of outliers at the
high and low ends of the flux range).

Using a "standard candle" of the sun at 10 LY we can use the percent
decline in light to calculate the very rough size and range of the
object that might be blocking the appropriate amount of light.  Again,
since these darkening events can happen over very large areas of the
sky over a matter of hours the most likely suspect must be object or
objects passing relatively close to earth between those stars and TESS
during the relevant time interval.

I've put up just the first significant darkening event detected in the
data between 2018 and 2022: <kym.massbus.org/UFO/TESS/mapdark1.gif>.

We see from the colour scale the plotting program has found at least
one tile in the plot averages a reduction over the stars in that tile
of an average 40% of their normal flux. We can see from the colour
variations that other regions nearby see similar or less but non-zero
darkening within the same 2.4 hr interval in this case in mid 2018.
(The "t=" gives the number of Julian Days since the baseline date that
is approx 01 Jan 2015 for TESS data).

We can therefore calculate some very rough numbers assuming the
objects are at average positions inside the moon's orbit
relative to earth. An "average value" of distances in the region is
likely to be around 200,000 km (plus or minus :).

With the target stars on average assumed to be similar to our
"standard candle" (sun at 10 LY) we can calculate the diam of the
objects apparently crossing in front of the 100s of target stars in
the dark area of the plot as:

Diam(m) Dist(km)   %FluxChange     DiamAtAvDist(m)
1       32000      10.3864         6.2498          
1       22000      21.9738         9.0905          
1       18000      32.8244         11.1105         
1       16000      41.5428         12.4992         

I.e. for those tiles showing a 10% flux decline they might correspond
to an object 1m in diam about 32000 km away or
(more likely) an object 6.2m in diam 200000 km away.

Using these rough and ready ideas we can calculate those
frames of the movie showing synchronized dimming of 
99+% over wide regions of the sky may correspond with the movement
of possibly many objects with diam >=20m seen from 200,000 km away.

--
"Nothing in life is to be feared, it is only to be understood.
Now is the time to understand more, so that we may fear less."
- Marie Curie

Unidentified aerial phenomena I. Observations of events
B.E. Zhilyaev, V. N. Petukhov, V. M. Reshetnyk
Main Astronomical Observatory, NAS of Ukraine,
Zabalotnoho 27, 03680, Kyiv, Ukraine
... We present a broad range of UAPs. We see them everywhere. We observe a
significant number of objects whose nature is not clear. Flights of single,
group and squadrons of the ships were detected, moving at speeds from 3 to
15 degrees per second. Some bright objects exhibit regular brightness
variability in the range of 10 - 20 Hz.  Two-site observations of UAPs at a
base of 120 km with 2 synchronised cameras allowed the detection of
a variable object, at an altitude of 1170 km. It flashes for one hundredth
of a second at an average of 20 Hz.
[Astronomers in Ukraine have undertaken their own independent survey
of objects they see flying over the Kyiv region at speeds around 15 km/sec.
They are watching the daytime sky.
They see many objects --, some bright and some dark, different sizes.
They travel often singly but sometimes in large groups.
They are not likely to be anything sent by Russia, the US, or any other country].

US Navy Admits It Has More UFO Videos, But Don't Expect to See Them Anytime Soon
ScienceAlert, 11 Sep 2022 03:11Z
The US Navy holds unseen videos of unidentified flying objects (UFOs) - or
unidentified aerial phenomena (UAP), as the ...

  Classified UFO videos would 'harm national security' if released, Navy says
  Live Science, 10 Sep 2022 10:59Z
  The US Navy holds unseen videos of unidentified flying objects (UFOs) - or
  unidentified aerial phenomena (UAP), as the ...

  Navy tells watchdog site releasing all UFO videos would
  'harm national security'
  Washington Examiner on MSN.com, 09 Sep 2022 19:26Z
  A watchdog website says its Freedom of Information Act request for
  every UFO video held by the Navy was denied due to national security reasons.
  The Black Vault says that, since April 2020, it has been attempting to
  get all videos of UFOs (also called unidentified aerial phenomena)
  possessed by the Navy via a FOIA request.
  After receiving several rejections in which the Navy would neither
  confirm nor deny the existence of the videos, the group says it
  received a response denying the request for the "sensitive information."
  "The requested videos contain sensitive information pertaining to
  Unidentified Aerial Phenomena (UAP) and are classified and are exempt
  from disclosure," the letter read. "The release of this information
  will harm national security."
  [Every frame apparently contains things too scary to show the public].