Asteroidal Occultation Results for North America 

Last Update: 04/16/2017 07:04:14 PM EDT


Welcome to the IOTA Asteroid Occultation Results Webpage.  Check here often for all the latest Results.


UTC Date and Time


(do NOT use this time for timing occultations)


Report Form Templates


Minor Planet Bulletin Articles


"A Trio of Well-Observed Asteroidal Occultations in 2008"


"Occultations by 81 Terpsichore and 694 Ekard in 2009 at Different Rotational Phase Angles"


North American HomePage


What Information Should I Submit after Observing an Occultation?


2017 Asteroidal Occultation Results


2016 Asteroidal Occultation Events

2015 Asteroidal Occultation Events

2014 Asteroidal Occultation Events

   2013 Asteroidal Occultation Results  

2012 Asteroidal Occultation Results

2011 Asteroidal Occultation Results

2010 Asteroidal Occultation Results

2009 Asteroidal Occultation Results

2008 Asteroidal Occultation Results

2007 Asteroidal Occultation Results

2006 Asteroidal Occultation Results 


Palmer Divide Observatory (Light Curves)


DAMIT  (3-D asteroid models)

*Source: Interactive service for asteroid models (ISAM)

  Interactive Service for Asteroid Models - ISAM


 Frederick Pilcher Light Curve


Miriade Ephemeris Generator

Event Date(UT)




Asteroid Prediction







2017/04/16 838 Seraphina   C. Anderson/Ky. Hansen/Ka. Hansen  
2017/04/14 96 Aegle   P. Maley, T. George (m)  
2017/04/11 105 Artemis   T. Blank (2+), P. Maley, C. Anderson  
2017/04/10 599 Luisa   D./J. Dunham (2+. 2m), R. Venable (2+, 1m), C. Ellington  
2017/04/08 1300 Marcelle   R. Dunford, B. Billard (m)  
2017/04/01 238 Hypatia


(only 1+)

P. Maley, W. Thomas (m) AZ
2017/03/30 467 Laura


(only 1+)

P. Maley, T. George (m) AZ
2017/03/30 68 Leto


(only 1+)

R. Bria CT
2017/03/29 304 Olga


(only 1+)

M. Fulbright NC
2017/03/27 581 Tauntonia


(only 1+)

P. Maley AZ
2017/03/24 1467 Mashona


(only 1+)

D./J. Dunham MD
2017/03/18 461 Saskia


(only 1+)

D. Breit CA
2017/03/15 147 Protogeneia


with Damit Model 558

G. Mroz, D. Breit All
2017/03/14 311 Amalthea pending

T. Blank (3+, 1m), W. Thomas, P. Maley, R. Campbell, D. Eisfeldt,

S. Insana (m), S. Deen (m)

West    TX
2017/03/09 648 Pippa


(only 1+)

D. Caton NC
2017/03/08 686 Gersuind


with Damit Model 1003

D. Oesper, R. Trank, B. Dunford (2m) All
2017/03/08 235 Carolina OCCULT

G. Lyzenga, P. Maley, D. Klinglesmith, W. Owen,

P. Eschman et al (m), T. George (m), M. Smith (m), C. McPartlin (m)

2017/03/05 225 Henrietta OCCULT P. Maley, T. George, T. Blank, W. Thomas AZ
2017/03/03 25 Phocaea


(only 1+)

(possible double?)

B. Dunford IL
2017/03/02 1186 Turnera OCCULT P. Maley, W. Thomas, J. Keller et al, L. Palmer (m), T. George (m), P. Facuna (m) All
2017/03/02 739 Mandeville


(only 1+)

R. Nugent TX
2017/02/24 578 Happelia

OCCULT with Damit Model 660

(only 1+)

possible satellite

M. Smith TX
2017/02/05 204 Kallisto OCCULT J. Moore, S. Messner OK
2017/02/04 178 Belisana


(only 1+)

S. Messner OK
2017/02/01 121 Hermione


with Damit Model 156

G. Mroz, P. Maley, T. George (m) All
2017/01/31 206 Hersilia OCCULT D. Dunham (4+, 1m), B. Sandy, B. Gimple, J. Bardecker, P. Maley, D. Caton (m) East     West
2017/01/29 514 Armida OCCULT

S. Conard, E. Warner, A. Scheck, C. Terrill/M. Chesnes, D. Dunham,

W. Owen, G. Lyzenga, B. Billard (m)

East 1    East 2


2017/01/26 693 Zerbinetta OCCULT P. Maley, D. Roemer et al All
2017/01/20 5153 Gierasch


(only 1+)

D/J Dunham, A. Scheck (m) All
2017/01/18 52 Europa


with Damit Model 463

C. Anderson, J. Moore All
2017/01/16 165 Loreley


with Damit Model 295

C. McPartlin, P. Maley, B. Krobusek All
2017/01/08 171 Ophelia


(only 1+)

N. Smith GA
2017/01/08 2906 Caltech


(only 1+)

A. Olsen, B. Dunford (m) IL
2017/01/07 362 Havnia preliminary T. George, W. Thomas, M. Buie, C. Wiesenborn, P. Maley (m) All
2017/01/04 785 Zwetana


(only 1+)

C. Ellington, S. Preston (m) WA




Miscellaneous Results (from other regions)


2016/12/24 22 Kalliope OCCULT India and Europe India      Europe


Reports without links are Incomplete - awaiting further observations.

(m) indicates a Miss observation within an event with at least 1 positive observation

*Profiles provided here are preliminary.

Profiles shown for the "only 1+" events are for observer feedback only.

Asteroid profiles only show the line of sight view at the time of the occultation.

The true size/shape of an asteroid in 3-dimensions cannot be determined from a single occultation.

Dave Herald should be contacted for "official" profile information.

Determining the Profile of an asteroid from a limited number of observations can lead to misrepresentations.




Please direct all questions/concerns to the Webmaster:  Brad Timerson