    CROSSMATCH

1.  .  Stilts.jar  Crossmatch.jar     .
2.      .
3.   : java -jar Crossmatch.jar []

	 :
	
	ra -  
	dec - 
	area_radius -    
	crossmatch_radius -    
	
	     ,         :
	
	apass_crossmatch_radius -       APASS.     2*crossmatch_radius

	main_catalogue -   .      IPHAS,  : ALLWISE, URAT1, 2MASS, USNOB1, UCAC5, GAIA, VPHAS

	filter -     .  : filter=[_]: " ".    ;  
	   .       ,   filter   ,  
	    .       ,       
	 || ()  && ().
	(!          .      UCD- , 
	      VizieR,        "_"    ucd$.)
	      VPHAS: "fprimary == 1".        .
	       ALLWISE ("equals (ccf, padWithZeros (0, 4) )")  2MASS ("equals (Cflg, padWithZeros (0, 3) )").

	addcol -  .  : addcol=[_]: " ".    ;   
	    .
	     ,        ,      .

	addcat -  .  : addcat=[_]: " ".    .   
	     VizieR,     ,    ,    (, II/341  GAIA).
	  addcat   addcol    ,     .
	     URL,           .
	      ,       "PATH:[  ]".     ,   
	.    ,  .csv,     ASCII.

	magic_value -   .       999.99;    , : magic_value=off

	out -  ,   .      match_[ra]_[dec]_[area_radius]_[crossmatch_radius].txt 
	    ASCII.      CSV.
	
!             .

       (java heap memory),   ,   .      , 
  -Xmx. , -Xmx512m   java heap memory  512 .
	
 :

java -Xmx512m -jar Crossmatch.jar ra=298.052 dec=29.408 area_radius=0.1667 crossmatch_radius=2 magic_value=off out=test.txt

      298.052 +29.408   0.1667  ( 10 ).    2    
,  APASS -      4 .   - IPHAS,  .      test.txt  
 ASCII     .     512 .

java -jar Crossmatch.jar ra=298.052 dec=29.408 area_radius=0.1667 crossmatch_radius=2 apass_crossmatch_radius=3

     APASS,   .      298.052_29.408_0.1667_2.txt    
  999.99.

java -jar Crossmatch.jar ra=298.052 dec=29.408 area_radius=0.1667 crossmatch_radius=2 main_catalogue=UCAC5

      UCAC5.

java -jar Crossmatch.jar ra=298.052 dec=29.408 area_radius=0.1667 crossmatch_radius=2 filter=IPHAS: "r < 19 || i < 19" filter=GAIA: "ucd$phot_mag_stat_mean_em_opt < 19"

       .   IPHAS    r  i    19.   GAIA   
<Gmag>    19,             ""  "",    
 UCD-           "_".

java -jar Crossmatch.jar ra=298.052 dec=29.408 area_radius=0.1667 crossmatch_radius=2 addcol=2MASS: "dup use"

      dup  use   2MASS.

java -jar Crossmatch.jar ra=298.052 dec=29.408 area_radius=0.1667 crossmatch_radius=2 addcat=NOMAD: "I/297" addcol=NOMAD: "RAJ2000 DEJ2000 e_RAJ2000 e_DEJ2000"

  NOMAD.          .        RAJ2000  DEJ2000.

java -jar Crossmatch.jar ra=298.052 dec=29.408 area_radius=0.1667 crossmatch_radius=2 addcat=NOMAD: "PATH:c:\nomad.dat" addcol=NOMAD: "RAJ2000 DEJ2000 e_RAJ2000 e_DEJ2000"

    ,     NOMAD       ASCII.