2008.12.20

Updated TTV plot for HD 17156 (correcting small error in suggested ephemeris)
2008.12.19 HD 17156 (R) by Gregorio (Portugal)

2008.12.18

Corrected small errors in TTV ephemeris solutions for XO-2, TrES-2, XO-3, WASP-1, HD 189733, GJ 436 and CoRoT-1.
Added web page for new BTE WASP-12 & listed in AXA home page.
20070829 XO-2 (C) by Hentunen (Finland); updated TTV plot

2008.12.17

Upgraded TTV plot for TrES-2, with improved Chi-Sqr solution
20060926 TrES-2 (R) by Hentunen (Finland)
20080229 XO-3 (V) by Gregorio (Portugal)
Upgraded TTV plot for WASP-1 with improved Chi-Sqr solution
20081108 WASP-1 (R) by Enric Forne (Spain)
Upgraded TTV plot for XO-3 with improved Chi-Sqr solution
20081120 XO-3 (R) by new observer Josep Maria Coloma (Spain) & Enric Forne (Spain)

2008.12.16

2008.12.15

Upgraded TTV plot using new format
20081123 GJ 436 (R) by Gregorio (Portugal)

2008.12.14

20081106 CoRoT-1 (C) by Hentunen (Finland)
Decided, finally, to extend the V-mag criterion for BTE to 14.0 (from 13.0). This means that at this time 3 more BTEs will be added (all CoRoT). Hentunen's LC convinced me that amateurs are capable of making scientifically useful contributions for these fainter BTEs.

2008.12.13

2008.12.12

2008.12.11

20081211 XO-4 (R) by Foote (Utah)
20081123 WASP-2 (R) by Mendez (Spain)
20061019 WASP-1 (R) by Hentunen (Finland)

2008.12.10

Added web page for newly announced HAT-P-8
20081210 HD 17156 OOT (C) by Gary (Arizona)

2008.12.08

20060430 TrES-1 (C) by Hentunen (Finland)

2008.12.06

20081107 HD 17156 (V) by Foote (Utah)

2008.12.02

Corrected an error on the HD 17156 web page. There was a one day error for the mid-transit HJD for Vanmunster's 2008.05.11 observation. This observation is still a mystery since it occurs 11 days after the previous "b" trnaist and 10 days before the following "b" transit.

2008.11.30

2008.11.29

2008.11.27

2008.11.26

20081120 XO-3 (R) by Ayiomamitis (Greece)
20081117 WASP-10 (R) by Foote (Utah)

2008.11.25

20081114 WASP-1 (R) by Mendez (Spain)
Revised HAT-P-3 plots using re-processed LCs for 2008.05.12.
20070830 HAT-P-3 (R) by Hentunen (Finland)
20080510 HAT-P-4 (R) by Hentunen (Finland)

2008.11.24

Added professional mid-transit timing data to TTV plot: http://brucegary.net/AXA/HD17156/hd17156.htm

2008.11.23

20070824 TrES-3 (R) by Hentunen (Finland)

2008.11.22

2008.11.21

Upgraded TrES-4 web page (i.e., plots)
20070925 TrES-4 (C) by Hentunen (Finland)

2008.11.14

20081114 WASP-10 by Gary (Arizona)

2008.11.13

Changed some 3-character observer codes to conform to last-name-initial/first-name-initial rule (e.g., Bel, Costa, Forne, Puig)

2008.11.09

20071221 HAT-P-3 (C) by Hentunen (Finland)
20081105 HD 189733 (V) by Mendez (Spain)
20081107 HD 17156 (C) by Gary (Arizona).

2008.11.03

20080806 HD 189733 (C) by Petr Svoboda (Czech Republic) using a 1.33-inch aperture camera lens "telescope." 
    So far this is the smallest aperture (that has come to my attention) used to produce a scientifically useful exoplanet transit light curve.
    Petr Svoboda tentatively holds the record for an informal contest to demonstrate that "aperture isn't everything!" Congratulations Petr Svoboda of the Czech Republic!
20080226 TrES-2 (C) by Hentunen (Finland)

2008.11.02

20081102 CoRoT-2 (C) by Gary (Arizona). The shortness of this LC (0.8 hr) breaks all my rules, yet it seems to contribute something useful.

2008.11.01

20081026 XO-4 (C) by Srdoc (Croatia) using a 2.5-inch telescope! Congratulations Gregor, this is one of the smallest apertures used for a successful measurement of any exoplanet transit.
    And this transit depth is only ~9.5 mmag. This could become a bragging rights contest, and I invite a competition.
20081026 WASP-2 (R) by Mendez (Spain)

2008.10.31

Added combined LC for 20081028 transit of HAT-P-6 by Foote & Gary, showing coincident brightening within transit ("sunspot"?)
20050625 TrES-1 (R) by Poddany (Czech Republic)

2008.10.30

20080307 WASP-3 (R) by Hentunen (Finland)
20080422 XO-2 (R) by Hentunen (Finland)

2008.10.29

20081028 HAT-P-6 (R) by Foote (Utah)

2008.10.28

2008.10.23

20081022 WASP-1 (C) by Gary (Arizona)

2008.10.20

20080324 GJ 436 (C) by Hentunen (Finland)

2008.10.20

2008.10.18

2008.10.17

2008.10.15

20080503 HAT-P-5 (C) by new observer Hentunen (Finland)
20081015 HD 209458 (R) by Gary (Arizona)

2008.10.14

20081014 WASP-10 (BB) by Gary (Arizona. First obsn in ~4 mo due to Meade neglecting repair of 14-inch; using temporary 11-inch telescope)

2008.10.11

2008.10.08

20081007 WASP-10 (C) by Kalajian (Maine)
20081006 TrES-3 (R) by Ogmen (Cyprus)

2008.10.06

20080928 TrES-3 (R) by Naves (Spain)

2008.10.04

20080808 TrES-3 (R) by new observer Ramon Costa (Spain)
20070910 TrES-3 (C) by new observer Joal Bel (Spain)

2008.10.03

Rearranged TransitSearch web page (link)

2008.10.02

Re-processed all HATp-P-3 data files & created transit parameter property plots
20080320 HAT-P-3 (R) by new observer Xavier Puig (Spain)
20080622 TrES-3 (R) by Forn (Spain)

2008.10.01

20080206 XO-2 (R) by Forn
Created & posted TrES-1 transit parameter plots; slight period adjustment suggested. Replaced some LC plots w/ new format versions.
20080714 TrES-1 (R) by new observer Enric Forn (Spain)

2008.09.30

Created plots for XO-2
20080206 XO-2 by (R) by Casas (Spain)
20080331 HAT-P-4 (R) by Casas (Spain)

2008.09.29

Corrected BTE name & web page location for WASP-11/HAT-P-10 (using WASP-11 in main BTE table)
    (Observers: Please use short name "WASP-11" instead of WASP-11/HAT-P-10 in the header of your data file submissions)
20070726 TrES-2 (R) by new observer Ricard Casas (Spain)
20070901 TrES-2 (R) by new observer Ricard Casas (Spain)

2008.09.26

Updated BTE_ephem.xls, ephemeris for predicting transit events at observer lat/lon for any date (available at http://brucegary.net/book_EOA/xls.htm)
Updated BTE_list.xls, list of BTE info (available at http://brucegary.net/book_EOA/xls.htm)
Updated AXA home page with refined D and L values (including WASP-11/HAT-P-10)
Created web page for new exoplanet HAT-P-10

2008.09.24

20080923 WASP-4 (R) by Fernando Tifner (new observer, Argentina, first Southern Hemisphere AXA contributor)
20080922 CoRoT-2 OOT by Ogmen

2008.09.18

20080918 WASP-2 (V) by Roe
20080918 HD 189733 (V) by Roe

2008.09.16

20080915 HD 189733 (R) by Naves

2008.09.14

20080913 TrES-2 (R) by Muler

2008.09.11

20080910 WASP-10 (R) b Kalajian (new observer)

20080910

20080908 HAT-P-7 (R) by Naves

2008.09.09

2008.09.05

20070913 WASP-2 (V) by Poddany
20070913 WASP-2 (R) by Poddany

2008.09.03

20080830 TrES-2 (V) by Roe
20080902 HD 209458 (B) by Ayiomamitis
20080822 CoRoT-2 (R) by Foote
20080822 HAT-P-7 (R) by Foote

2008.09.02

20080828 WASP-10 (R) by Ayiomamitis (1st submission for this BTE)
20080216 GJ 436 (R) by Salvaggio & Marino
Correction to 20080227 XO-2 (R) by Salvaggio & Marino

2008.09.01

20080227 XO-2 (R) by Salvaggio & Marino

2008.08.29

2008.08.27

20080826 HD 189733 (R) by Poddany
20080824 WASP-3 (R) by Mendez

2008.08.26

20080825 TrES-3 (R) by Mendez

2008.08.25

Added "Data Rejection Criteria" to web page Data Format

2008.08.23

Moved parts of AXA home page to separate web pages ("Data File Format" and "Ground Rules for Professional Use of Data Files").

2008.08.22

Discontinued Excel file downloads (BTE_ephem.xls, LCx_template, etc). Too many problems with incompatible Excel versions.
20080819 CoRoT-2 (V) by Roe
20080818 WASP-2 (R) by Naves

2008.08.21

20080818 HD 189733 (R) by Naves

2008.08.16

Updated LCx_template.zip (link)
20080803 TrES-2 (R) by Naves
20080806 CoRoT-2 (R) by Naves

2008.08.15

20080813 WASP-3 (R) Scarmato (new observer)

2008.08.13

Started a "poor man's" discussion board. See link for instructions on how to use.
20080813 CoRoT-2 (R) by Mendez

2008.08.13

WASP-3 (R) by Mendez - showing brightening before ingress and after egress: link

2008.08.12

20080808 TrES-3 (R) Mendez

2008.08.10

Added plots to WASP-2 web page; strong evidence for shorter period
20080808 WASP-2 (V) by Roe

2008.08.09

20080809 HD 189733 (R) by Rodriguez

2008.08.08

20080717 HD 189733 (R) by Marino

2008.08.06

CoRoT-2 (V) by Roe
Updated discussion of the case against GJ 436c (http://brucegary.net/AXA/GJ436/gj436.htm#Comments)
CoRoT-2 TTV caution (http://brucegary.net/AXA/COROT2/corot2.htm#Comments)

2008.08.05

2008.07.31 CoRoT-2 (R) by Mendez; confirming an interesting departure of mid-transit time from ephemeris.

2008.08.03

2008.07.26 WASP-14 (R) by Naves
2008.07.22 TrES-3 (R) by Naves - the 300th data submission to the AXA!

2008.08.01

Added new version of "Ground Rules for Professional Use of Data Files" suggested for adoption by Caltech's NStED/AXA when it opens-for-business.

2008.07.31

20080728 CoRoT-2 (I) by Roe
20080728 CoRoT-2 (V) by Roe
20080728 HAT-P-5 (V) by Roe
Added observer web page for Fabio Salvaggio (SFX)

2008.07.30

Added observer web page for Cindy Foote (FCN)

2008.07.29

20080729 HAT-P-7 (R) by Mendez

2008.07.25

20080724 TrES-3 OOT by Ogmen

2008.07.24

20080724 TrES-1 (R) by Mendez

2008.07.22

Added observer web page for Manuel Mendez (Spain): MQZ

2008.07.20

Added observer web page for Tonny Vanmunster (very long overdue): VMT

2008.07.19

20080719 HD 209458 (R) by Naves

2008.07.18

Updated Landolt and Henden database files (essential for all-sky photometry).

2008.07.17

E-mailed monthly AXA status report to active contributors
Updated observer web page for Standa Poddany

2008.07.16

Added observer web page for Standa Poddany (Czech Republic)

2008.07.15

20080627 HD 189733 by new observer Standa Poddany (Czech Republic)

2008.07.13

Revised 20080401 GJ 436 (R) by Mendez (correcting my earlier error)

2008.07.12

20080601 WASP-3 (R) by Mendez

2008.07.11

20080602 TrES-3 by Mendez; updated table & plots

2008.07.10

20080709 TrES-3 by Ogmen; updated table & plots
20080622 TrES-3 by Mendez
Added table & plots for TrES-3 (including suggested ephemeris change)

2008.07.09

20080708 TrES-1 (C) by Ayiomamitis
20080708 WASP-3 (R) by Mendez

2008.07.08

Added personal web page for Yenal Ogmen (Cyprus)
20080706 TrES-3 (R) by Manuel Mendez

2008.07.07

20080706 HD 189733 (R) by Salvaggio (excellent LC quality, especially for 9-inch telescope)
20080704 TrES-2 (V) by Darrel Moon

2008.07.06

Added TTV plots to XO-1 page
20080703 TrES-3 (V) by Darrel Moon (new observer in Utah)
20080703 TrES-3 (I) by Darrel Moon (new observer in Utah)

2008.07.03

20080702 TrES-1 (R) by Ogmen

2008.07.02

20080701 XO-1 OOT (BB) by Gary
20080701 TrES-2 (R) by Mendez
20080630 XO-1 (R) by Mendez

2008.07.01

20080630 TrES-3 (R) by Yenal Ogmen (new observer; first submission)
20080630 XO-1 (R) by Srdoc

2008.06.29

20080628 HD 189733 (B) by Ayiomamitis

2008.06.28

Added web page describing differences between AAVSO variable star observing and image analysis and those required for exoplanets: link

2008.06.27

20080625 TrES-3 (R) OOT by Srdoc
20080626 TrES-2 (C) by Ayiomamitis
Refined ephemeris for HD 149026

2008.06.26

Updated BTE_list.xls and BTE_ephem.xls
Added HAT-P-9 info on home page; added HAT-P-9 web page

2008.06.25

20060520 XO-1 (R) Holman et al (downloaded from NStED & processed using AXA pipeline)
20080624 TrES-3 (C) by Foote

2008.06.24

20071113 XO-3 (R) by Foote
20080607 XO-1 (R) by Foote
20080607 XO-1 (V) by Foote
20080607 XO-1 (B) by Foote

2008.06.23

20071025 XO-3 (R) by Foote
20080622 TrES-3 (R) by Naves

2008.06.22

20071025 XO-3 (I) by Foote

2008.06.21

Uploaded major upgrade to LCx_template.xle, an Excel spreadsheet used to produce graph of LC. This upgrade has better instructions and is easier to use than the previous versions.

2008.06.19

20071009 XO-3 (R) by Foote

2008.06.18

20080615 XO-1 (V) by Roe
20080616 HD 189733 (R) by new observer Giuseppe Marino (Italy)
20080616 HD 189733 (R) by Salvaggio; data file links & plots added
20080617 HAT-P-7 (V) by Roe
Added many plots of transit properties for HAT-P-7; added data file links

2008.06.17

Updated BTE_list.xls and BTE_ephem.xls to include WASP-14 and WASP-10.
Added WASP-10 to BTE list. Added its web page.
Added WASP-14 to BTE list. Added its web page

2008.06.15

20080614 HAT-P-7 (R) by new observers Fabio Salvaggio and Emilio Lo Savio (Italy)  

2008.06.14

Added tables & graphs for WASP-3
20080613 WASP-3 (I) by Ayiomamitis

2008.06.12

20071009 XO-3 (I) by Foote
20080612 TrES-2 (V) by Roe
20080611 XO-1 (V) by Roe
New and improved BTE_ephem.xls uploaded.
    (One user has problems with an earlier version, which I can't reproduce, so if you have problems please let me know.)

2008.06.11

Updated BTE_ephem.xls (corrected for high latitude observers; fast review of future dates using slide bar).

2008.06.10

Improved BTE_ephem.xls uploaded to http://brucegary.net/book_EOA/xls.htm
    (This new ephemeris displays on one page all transits viewable on a given night at an observers site, thanks to a clever addition by Anthony Ayiomamitis.)
20080609 TrES-3 by Gregor Srdoc

2008.06.09

Added many data files to XO-3 page
20070215 XO-3 by Foote (V)
Corrected CoRoT-2 20080606 LCs by Stelios Kleidis; data file link
20080606 CoRoT-2 by Anthony Ayiomamitis (C), data file link
All data files for XO-5 added
20080210 XO-5 Foote (R)
20080120 XO-5 by Foote (I)

2008.06.08

20080602 TrES-2 by Bruce Gary (BB), incl data file

2008.06.07

New LCx_templatee.xls uploaded (allows for weighted avg'g of ref stars)
20080607 CoRoT-2 by Stelios Kleidis (new observer; welcome aboard)

2008.06.06

Re-organized the AXA home page somewhat, and added a section "Ground Rules for Proessional Use of Data Files."
Updated LCx_template.xls at link
Updated BTE_ephem.xls at link
Updated BTE_list.xls at link
Updated XO-3 ephemeris based on Winn et al, 2008

2008.06.05

Began uploading GJ 436 data files for public download (for observers who have consented)
2008.01.27 XO-4 OOT by Joao Gregorio

2008.06.04

Added graphs of depth, length & TTV for XO-4 and XO-5
2008.01.20 XO-4 by Cindy Foote (B-band)
2008.01.20 XO-4 by Cindy Foote (V-band)
2008.01.20 XO-4 by Cindy Foote (R-band)
2008.06.01 WASP-3 by Gregor Srdoc
2008.06.03 HAT-P-7 by Anthony Ayiomamitis (excellent LC using a 6.3-inch telescope)

2008.06.03

2008.06.02 TrES-3 by Gregor Srdoc
2008.01.20 XO-5 by Joao Gregorio
2008.06.03 XO-1 by Bruce Gary (BB-band)
2008.06.03 XO-1 by Cindy Foote (R-band)

2008.06.01

Web hosting provider had "electrical fire" that caused AXA web pages to be off-line. Created "mirror site" at http://reductionism.net.seanic.net/AXA/x.htm
(mirror site removed on 2008.06.04 when this site came back up)

2008.05.31

2008.05.30

Added TrES-2 for 2008.05.11 by Tonny Vanmunster
Added XO-1for 2008.05.30 by Cindy Foote

2008.05.29

Added TrES-3 for 2008.05.28 by Jim Roe
Added HAT-P-5 for 2008.05.28 by Anthony Ayiomamitis
Added HD 17156 OOT for 2008.05.28 by Gregor Srdoc
Added WASP-3 LC for 2008.05.28 by Bruce Gary.

2008.05.26

Added picture of Joao Gregorio's "team"
Added XO-3 for 2007.02.15 by Cindy Foote
Added GJ 436 OOT on 2008.03.25 by Cindy Foote
Added observer web page for James Roe (Missouri; USA)
Added TrES-3 for 2008.05.25 by Jim Roe

2008.05.25

Added XO-3 for 2006.11.08 by Cindy Foote (V-band)
Added XO-3 for 2006.11.08 by Cindy Foote (R-band)
Added XO-3 for 2006.11.08 by Cindy Foote (B-band)
Added XO-3 for 2006.10.26 by Cindy Foote (V-band)
Added XO-3 for 2006.10.26 by Cindy Foote (R-band)

2008.05.24

Begin using new version of table summarizing tranist LC solutions, starting with XO-3
Added XO-3 for 2006.10.26 by Cindy Foote (B-band)
Added XO-3 for 2006.10.23 by Cindy Foote (V-band)
Added XO-3 for 2006.10.23 by Cindy Foote (R-band)
Added XO-3 for 2006.10.23 by Cindy Foote (B-band)
Added XO-3 for 2006.09.21 by Cindy Foote (R-band)
Added XO-2 for 2007.01.18 by Cindy Foote (1st amateur LC of XO-2).

2008.05.23

Updated GJ 436 plots of TTV, Depth(t), Depth(filter) and Length(t).
Added GJ 436 for 2008.05.22 by Jim Roe

2008.05.22

Added TrES-3 for 2008.05.21 by Jim Roe
Added TrES-4 for 2008.05.21 by Jim Roe
Added HD 189733 for 2008.05.21 by Jim Roe
Added HD 17156 OOT for 2008.05.11 by Tonny Vanmunster, showing an inexplicable transit when none should occur.

2008.05.21

Added WASP-7 info to AXA home page & added web page for this object.
Updated BTE_ephem.xls and BTE_list.xls: http://brucegary.net/book_EOA/xls.htm

2008.05.20

Added info for XO-4 and a web page for it.
Added info for XO-5 and a web page for it.
Uploaded new BTE_List.xls and BTE_Ephem.xls that includes XO-4 and XO-5 info:

2008.05.18

Replaced light curve example on AXA home page and changed description of it. The information lines between the panels are easier to read.
Uploaded new LCx_template.xls. A couple bugs were fixed.

2008.05.15

Added HD 17156d (TransitSearch candidate) for 2008.05.15 by Gregor Srdoc (no transit feature)

2008.05.13

Added HAT-P-7 egress for 2008.05.12 by Gregor Srdoc
Added HAT-P-5 egress for 2008.05.12 by Jim Roe
Added HAT-P-3 egress for 2008.05.12 by Jim Roe
Added TrES-3 for 2008.05.12 by Jim Roe

2008.05.12

Added HAPT-P-3 for 2008.05.12 by Miguel Rodriguez

2008.05.10

Added HAPT-P-3 for 2008.05.09 by Cindy Foote

2008.05.09

Added WASP-3 for 2008.05.07 by Ramon Naves
Added GJ 436 for 2008.05.06 by James Roe

2008.05.08

Updated AXA home page table of exoplanet properties
Added web pages for CoRoT-2 and HAT-P-7
Updated BTE_list.xls (downloadable from http://brucegary.net/book_EOA/xls.htm)
Updated BTE_ephem.xls (downloadable from http://brucegary.net/book_EOA/xls.htm)

2008.05.06

Added GJ 436 for 2008.04.30 by Miguel Mendez

2008.05.05

Added TrES-3 for 2008.05.03 by Gregor Srdoc (Croatia)

2008.05.04

Added TrES-3 for 2008.05.03 by new observer Anthony Ayiomamitis (Greece)

Added TrES-4 for 2008.05.03 by Cindy Foote (Utah)

2008.05.03

Added XO-1 OOT for 2008.04.23 by Cindy Foote (Utah)

2008.05.02

Changed some instructions for submitting data. Also changed the example light curve for illustrating how to "read" the new format ones on the exoplanet web pages.

2008.05.01

Changed the light curve presentation format, as explained on the AXA home page. Starting May 1 all submissions will use the new format.

2008.05.01

Added new observer page: Miguel Rodriguez

2008.04.28

Uploaded newer version of LCx_template.xls
Updated GJ 436 plots of TTV, depth & length
Added GJ 436 LC for 2008.04.28 by Bruce Gary (AZ)

2008.04.27

Added GJ 436 OOT for 2008.04.27 by Bruce Gary (AZ)
Added GJ 436 OOT for 2008.04.26 by Bruce Gary (AZ)

2008.04.26

Added GJ 436 transit on 2008.04.15 by Miguel Rodriguez (Spain)

2008.04.24

Added GJ 436 transit on 2008.04.22 by Ramon Naves (Spain)

Added GJ 436 OOT for 2008.04.24 (1 mmag variations?) by Bruce Gary (AZ)

2008.04.22

Added HD 17156d LC for 2008.04.21 predicted transit (no show) by Bruce Gary (AZ)

2008.04.21

Updated GJ 436 plots of TTV, depth and length

Added XO-2 LC for 2007.03.09 by Cindy Foote (Utah)

Uploaded improved version of LCx_template.xls

2008.04.17

Added HAT-P-3 LC for 2008.03.18 by Nicolaj Haarup (Denmark)

2008.04.16

Uploaded LCx_template.xls (version date 2008.04.17) to http://brucegary.net/book_EOA/xls.htm (big improvments)

Added GJ 436 B-band by James Roe (Missouri) ( a little puzzing result, but we need to keep observing to verify)

Added new observer page for Nicolaj Haarup (Denmark)

2008.04.15

Added XO-1 20080413 ingress by Nicolaj Haarup (Denmark).

Added a web page describing my procedure for fitting LC data submitted to the AXA with a very simple "model": link.

Replaced GJ 436 for 2008.04.01 by Manuel Mendez (Spain) w/ new format versions.

2008.04.14

Added XO-1 OOT for 20080413 by Gary (AZ). It's one of the most precise amateur LCs and since it was made when a transit did not happen it can be used to assess what amateurs are capable of for the goal of searching for small depth transits. The RMS for 2-minute averages is 1.5 mmag, so 10 minute data chunks should exhibit ~0.7 mmag RMS. Any transit lasting 3 hours could be analyzed using 1-hour data groupings exhibiting 0.27 mmag SE, assuming systemtics are removed (which looks possible for this LC). In other words, transit depths as small as ~0.8 mmag should be detectable at the 3-sigma level using amateur LCs taken under ideal sky conditions with a 14-inch telescope and a blue-blocking filter. This OOT LC is at: http://brucegary.net/AXA/XO1/xo1.htm#Out-of-Transit

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This site opened:  April 15, 2008.  Last Update:  2008.12.20