The Ray Occured in the Crater HA, which I believe is part of Fra Mauro. The Crater HA is on Rukl Chart 43 North of Parry. Approximate Coordinates 16d West, and 4 d south. I observed this ray while watching the 3 rays occuring in the crater Parry on March 12th, 2003 UT. I observed this ray at approximately 3:43-4:04 UT on 3/12/03.
I thought I saw this ray visually through the clubs 12.5" f/6.5 Newtonian while looking at the rays in Parry but was not positive. I then went over to the 17" telescope to view the Parry rays and decided to give a brand new StellaCAM EX its christening. So I used the StellaCam EX imaging system to record the 3 rays in Parry, a great first useage. All 3 rays in Parry were recorded, and while observing the footage today I clearly saw the ray up in Crater HA which I thought I saw in the 12.5" f/6.5 Newtonian.
The ray was a very thin spoke traversing about 2/3 of the way across the crater.
This was observed through the 17" f/15 Classical Cassegrain in the French Dome at the Astronomical Society of Harrisburg's Edward L. Naylor Astronomical Center (www.astrohbg.org) in Lewisberry, PA (Lat 40.15 d N, 76.9 d W, Elev 390 m). Again through a StellaCAM EX I have the ray documented on video. I am going to work on getting you an image of the 3 rays in Parry and the ray in Fro Maura Crater HA by connecting my VCR to the computer, it may take some time but I'll try and get you something once you get it posted.Regards,
The Initial Predictions, Using Data in Original Reporting
Site Longitude = +76.900
Site Latitude = +40.150
Site Elevation = +390.000
Feature =
Feature Longitude: = -16.000
Feature Latitude: = -4.000
Reproducing Lighting For: 2003/3/12 at 03:43 U.T.
Desired Solar Altitude = +0.574(Rising), Azimuth = +91.444
Average Co-longitude = 16.575
In the Time column, D=Daylight, T=Twilight
---- Moon's ---- -- Earth's --
Topocentric Topocentric -------- Sun's --------
UT Date Time Alt° Semi-Diam'' Long° Lat° Colong° Lat° Azim°
2003/03/12 03:43 +40.697 917.19 -7.359 -2.696 016.472 -1.481 +91.444