North American Asteroidal Occultation Program

Updated Sunday, August 13, 2017

 

UTC Date and Time

 

 

Star Catalog Comparisons and Other Prediction Information

updated Sunday, August 13, 2017

5 October 2017

Triton occults UCAC4 410-143659

(Bruno Sicardy prediction - preferred)

Triton occults UCAC4 410-143659

(Occult prediction)

2x2 Degree Star Field

 

 

Support for the ESO Large Programme

List of High Interest Asteroidal Occultations

(zipfile provided by Eric Frappa) 

2017 August 14 Westphalia

Station List    Pre-Point Stars

Cloud Cover Forecasts 

Upper Mid-West     South Central

SkippySky Cloud Forecasts   North Central    Southwest

  GFS Forecast    USA Transparency

 

     

 

Miscellaneous Files Associated with Observations

European Observations of 20 May 2017 Centaur object occultation

 

IOTA's Eclipse Edge Determination Experiment 

 

Presentation to Riverside Telescope Makers Conference

David Dunham

 

Erigone occults Regulus - 20 March 2014

David Dunham's Miss report from Bermuda

Kelly Beatty Summary for Sky and Telescope

Roger Venable Edit of David Dunham Venus Occultation

(4.4 Mb)

Alternate Video (mpg2)  (1.2 Mb)

IOTA Handout - mid-August 2017 Asteroidal Occultations

provided by David Dunham

  CYGNSS satellites (P. Maley)

2015 April 2  4:54 UT

Prediction Map

Orientation of 90 Antiope and Satellite from IMCCE

Orientation along Predicted Path

How To Observe the Argentina Occultation

By Steve Conard (Word document)

Venus occults lambda Aquarii - 16 April 2014

Animation of Event from behind Earth

 

Miscellaneous Files

D. Dunham's Mid-Atlantic Occultation Summary  

Quadea, the Incredible Shrinking Asteroid

presentation to APL Astronomy Club by David Dunham

Interactive maps for North American Lunar grazing occultations

(Brad Timerson's Graze page)
(Includes forms & procedures for reporting lunar total and grazing occultation observations)

IOTA Plans for the 2017 Total Solar Eclipse (PPT)

David Dunham

Solar Eclipse Google Map

 

 

The Index of Worldwide Asteroidal Occultation Reports

compiled by Hayato Watanabe

 

Primary North American Coordinator

Backup Coordinators

North American Asteroidal Occultation Results

2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017

Report your Observations

Report Form Templates

Text Form

 

Predictions Important IOTA Pages

Other Web Links

 

Steve Preston's Page

Derek Breit's Page

David Dunham's Page

Steve Messner's Page

OccultWatcher

 

Predictions of stellar occultations by

TNOs and Centaurs in 2017

Josselin Desmars

 

Asteroidal Occultations in 2017 Worldwide List

Asteroidal Occultations in 2017 North/Central America

(provided by Edwin Goffin)

ReadMe Notes

 

 

IOTA Main Page

 

IOTA Lunar Occultations Page

 

IOTA Annual Meetings:  1983 - present

 

2007-2014 IOTA Annual Meetings Page

 

2015 Annual Meeting Page

2016 Annual Meeting Page

 

IOTA Awards Page

 

Euraster

Australia/New Zealand

Japan

Latin America

(English)

Worldwide Homepage

 

 

 

Downloads Miscellaneous Files Publications

 

An Occultation Observer Primer  (text file)

 

An Occultation Timing Primer Word  HTML

 

Introduction to Occultations (pdf)

Paul Maley, Richard Nugent

 

Occultations by Asteroid Satellites

 

Lunar Occultations of Comets  Word    Text

 

Chasing the Shadow:

The IOTA Occultation Observer's Manual

 

FREE Software Downloads

 

OCCULT4

Occultation Prediction Software

by Dave Herald

 

OccultWatcher

Occultation Planning Software by Hristo Pavlov

(highly recommended planning software, informs you of
  asteroidal and TNO occultations visible from your
  site or region; IOTA's main tool for coordinating
  observations to optimally cover event paths)

 

LiMovie

software for measuring occultation light curves

User webpage (NEW!)

Version 0.9.97.3 zip file (latest version)

Version 0.9.98.2a zip file

 

Tangra3

software for measuring occultation light curves and photometry

 

OccRec

OccuRec is a video recorder for Windows that has been specifically created to provide better options for recording Asteroidal Occultations

 

Occular 4.0

Occular 4.0 Download File (zipfile)

Installation Instructions (text file)

 

Important Paper!

Analysis of Camera Delay Corrections (Word file)

Analysis of Camera Delay Corrections (PDF file)

by Tony George

 

 

VirtualDub

video editing software

 

AviSynth

video editing software

 

 R-code Occultation Timing Extractor

(R-OTE) v. 4.5.9

(105 Mb file)

August 2017 update

 

IOTA Video Capture

Additional Details

 

 

Important:  KIWI-VTI Startup Procedures

by Dave Gault

 

The "Mighty-Mini" Videocamera System

by Scotty Degenhardt

 

NEW!! 

PVC Video Camera Carrier

by Ted Blank

 

Timing Using CCD Drift Scanning

Drift Scan Description

 

The Effects of Optical Miniaturization on Occultations

by Scott Degenhardt (webpage)

 

My Metis Meteor  by Scott Degenhardt

 

Multi-Station Occultation Observing (7.5 Mb PP)

by Scotty Degenhardt

 

Scotty Degenhardt's Time Code

Procedures with the Canon ZR

( 850kb ZIP file)

 

How Scotty Degenhardt Sets Up Multiple Remote Stations

(16 kb ZIP file)

 

How to Download and Reduce Asteroid Occultation  DV Tapes

Richard Nolthenius

 

WWVB-based video time inserter

John Wright

 

JXD990-8000 Video Recorder Manual

 

"Maxi" Mount for use with 120mm refractor

(August 2013 update)

 

Spreadsheet to Determine D and R times from

Canon ZR Date Code (Excel)

 

How to Reduce Time-Stamped Videos - KIWI-VTI (Word)

How to Reduce Time-Stamped Videos - IOTA-VTI (Word)

(uses above Excel Form)

 

How To Basics. Using various Software programs.

Richard Nolthenius

 

Suggestions for Cold Weather Deployments (zipfile)

 

Video Camera and Focal Reducer Connections

 

Camera and focal reducer Hyades comparisons

(David and Joan Dunham)

 

 

The "Hercules" Club

Observers who have positioned themselves between the two shadows

of a double asteroid,

so as to observe an occultation by neither component.

 

Powerpoint Presentation to

N. Virginia Astronomy Club

by David Dunham - April 13, 2008 ( 5 Mb)

 

Richard Nugent's Solar Eclipse Summary

 

----------  Minor Planet Bulletin articles  ----------

A Trio of Well-Observed Asteroidal

Occultations in 2008

Minor Planet Bulletin, 2009 July-Sept.

pp. 98-100

 

Occultations by 81 Terpsichore and 694 Ekard

in 2009 at Different Rotational Phase Angles

Minor Planet Bulletin, 2010 Oct-Dec

pp. 140-142

 

Several Well-Observed Asteroidal Occultations in 2010

Minor Planet Bulletin, 2011 Oct-Dec

pp. 200-204

 

Occultation Evidence for a satellite of the

Trojan asteroid 911 Agamemnon

Planetary and Space Science

Vol. 87, October 2013, pp. 78-84

Full text (as PDF download) available from

Cornell University Library

 

Asteroidal Occultation by 82 Alkmene and the

Inversion Model Match

Minor Planet Bulletin, 2015 Apr-Jun

pp. 129-131

 

 

----------  JDSO New Double Star articles  ----------

(select Archives)

Vol 6, No 2   1049 Feodosia

Vol 7, No 2   675 Ludmilla

Vol 7, No 3   790 Pretoria

Vol 7, No 3   160 Una

Vol. 8, No. 4   336 Lacadiera

 

-----------------------------------------------------

Review of the 29 May Eudora Occultation

(by D. Dunham)

 

 Gravic Astronomy Workshop - Saturday, October 8th

(proposed agenda)

Summary of the Astronomy Workshop at Gravic

 

 

Basic Information on Occultations (Eclipses) and the

July 19, 2011 occultation by Antiope

David Dunham

 

 

North American Annular Eclipse, May 20, 2012

Richard Nugent

 

 

 

 

 

North American weather satellite image

 

Western North America weather satellite image

 

Comments/Suggestion to Webmaster