Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Greek Designation | Collegiate Institution | Charter Date | Status | City | U.S. State/District |
| --- | --- | --- | --- | --- | --- |
| Alpha Chapter | SUNY Binghamton | February 20, 1994 | Active | Vestal | New York |
| Beta Chapter | SUNY Buffalo | December 3, 1994 | Active | Buffalo | New York |
| Gamma Chapter | Hofstra University | December 7, 1996 | Inactive | Hempstead | New York |
| Delta Chapter | SUNY Stony Brook | May 17, 1997 | Active | Stony Brook | New York |
| Zeta Chapter | New York University | May 17, 1997 | Active | New York | New York |
| Eta Chapter | SUNY Albany | December 13, 1997 | Active | Albany | New York |
| Theta Chapter | Rensselaer Polytechnic Institute | December 13, 1997 | Active | Troy | New York |
| Iota Chapter | University of Rochester | November 24, 1997 | Active | Rochester | New York |
| Kappa Chapter | Cornell University | April 25, 1998 | Active | Ithaca | New York |
| Lambda Chapter | Rutgers University | November 21, 1998 | Active | New Brunswick | New Jersey |
| Mu Chapter | The Ohio State University | April 22, 2000 | Active | Columbus | Ohio |
| Nu Chapter | Carnegie Mellon University | December 8, 2001 | Inactive | Pittsburgh | Pennsylvania |
| Xi Chapter | University of Massachusetts Amherst | November 24, 1999 | Active | Amherst | Massachusetts |
| Omicron Chapter | The George Washington University | November 15, 2003 | Active | Washington | District of Columbia |
| Pi Chapter | University of Maryland at College Park | November 13, 2004 | Inactive | College Park | Maryland |
| Rho Chapter | University of California, Riverside | March 30, 2002 | Active | Riverside | California |
| Sigma Chapter | University of Florida | November 13, 2004 | Active | Gainesville | Florida |
| Tau Chapter | Pennsylvania State University | April 19, 2003 | Active | University Park | Pennsylvania |
| Upsilon Chapter | Rochester Institute of Technology | November 18, 2006 | Active | Henrietta | New York |
| Phi Chapter | University of Central Florida | April 7, 2008 | Active | Orlando | Florida |
| Chi Chapter | University of South Florida | November 9, 2008 | Active | Tampa | Florida |
| Psi Chapter | Saint John's University | November 8, 2008 | Active | Queens | New York |
| Omega Chapter | University of Connecticut | April 12, 2008 | Active | Storrs | Connecticut |
| Alpha Alpha Chapter | Northeastern University | November 19, 2005 | Active | Boston | Massachusetts |
| Associate Chapter | Columbia University | April 23, 2005 | Active | New York | New York |
| Established Colony | University of Colorado at Boulder | December 6, 2009 | Active | Boulder | Colorado |
| Established Colony | CUNY Baruch | December 5, 2010 | Active | New York | New York |
| Established Colony | University of Minnesota | April 17, 2011 | Active | Minneapolis | Minnesota |
| Established Colony | University of California, Berkeley | December 4, 2011 | Active | Berkeley | California |
| Established Colony | George Mason University | November 17, 2012 | Active | Fairfax | Virginia |
Question:
What's the greek designation of the new york chapter with a charter date of april 23, 2005?
Answer:
Associate Chapter