VI. Analysis of the 2MASS Second Incremental Release Catalogs

3. Color Transformations for the 2MASS Second Incremental Data Release

Table 10: Primary LCO Standards

Name Coordinates (J2000) LCO Photometry 2MASS Photometry

RA Dec J EJ H EH K EK K_s EK_s J EJ H EH K_s EK_s N

9101 00:24:28.47 +07:49:00.6 11.622 0.005 11.298 0.005 11.223 0.008 11.223 0.005 11.620 0.029 11.286 0.028 11.198 0.027 1

9103 00:33:15.05 -39:24:10.1 10.932 0.006 10.657 0.004 10.596 0.005 10.594 0.004 10.916 0.024 10.646 0.026 10.591 0.025 1

9104 01:03:15.95 -04:20:49.3 11.045 0.005 10.750 0.005 10.693 0.010 10.695 0.005 11.036 0.032 10.752 0.032 10.722 0.030 1

9106 03:26:54.66 -39:50:50.7 12.153 0.007 11.842 0.005 11.772 0.010 11.788 0.006 12.120 0.021 11.832 0.020 11.765 0.021 2

9107 03:32:02.59 +37:20:39.4 11.934 0.005 11.610 0.004 11.492 0.011 11.503 0.005 11.943 0.021 11.620 0.023 11.519 0.023 1

9108 03:41:02.22 +06:56:16.5 11.737 0.009 11.431 0.006 11.337 0.008 11.336 0.005 11.738 0.014 11.432 0.016 11.348 0.019 2

9109 04:18:18.92 -69:27:34.6 11.552 0.002 11.326 0.002 11.255 0.027 11.269 0.002 11.552 0.035 11.313 0.033 11.237 0.031 1

9111 04:49:54.24 -35:11:13.8 11.246 0.006 11.031 0.006 10.992 0.033 10.980 0.006 11.226 0.032 11.016 0.030 10.988 0.029 1

9113 05:10:25.67 -44:52:44.5 11.059 0.005 10.766 0.005 10.708 0.034 10.713 0.005 11.029 0.026 10.788 0.036 10.697 0.027 1

9115 05:36:44.62 -34:46:36.9 12.069 0.007 11.874 0.005 11.826 0.007 11.831 0.005 12.001 0.021 11.833 0.019 11.814 0.021 2

9116 05:42:32.15 +00:09:02.1 11.426 0.009 11.148 0.009 11.077 0.014 11.058 0.008 11.437 0.025 11.107 0.033 11.072 0.029 1

9118 06:22:43.85 -00:36:28.9 11.723 0.011 11.357 0.009 11.264 0.016 11.261 0.010 11.758 0.025 11.375 0.037 11.272 0.027 1

9119 06:29:29.10 -59:39:30.8 12.114 0.006 11.838 0.005 11.765 0.009 11.781 0.005 12.106 0.020 11.831 0.025 11.770 0.028 2

9121 06:42:36.35 -45:09:06.8 11.719 0.004 11.434 0.004 --- --- 11.372 0.004 11.698 0.031 11.453 0.031 11.357 0.028 1

9122 07:00:51.80 +48:29:23.1 11.680 0.006 11.408 0.006 11.356 0.013 11.352 0.006 11.682 0.022 11.412 0.025 11.359 0.025 1

9123 06:59:45.85 -30:13:49.9 10.833 0.007 10.499 0.007 10.431 0.015 10.442 0.009 10.829 0.037 10.554 0.028 10.409 0.027 1

9125 07:19:37.39 -84:35:01.1 10.885 0.007 10.598 0.006 10.514 0.013 10.522 0.008 10.982 0.032 10.618 0.025 10.511 0.028 1

9126 07:30:34.46 +29:51:11.9 11.876 0.013 11.522 0.014 --- --- 11.450 0.022 11.868 0.025 11.529 0.022 11.457 0.025 2

9129 08:01:15.09 -50:19:37.0 10.914 0.007 10.585 0.006 10.487 0.021 10.496 0.009 10.885 0.033 10.547 0.030 10.418 0.027 1

9131 08:25:42.85 +73:01:17.9 10.819 0.008 10.546 0.007 10.499 0.010 10.515 0.008 10.851 0.047 10.541 0.039 10.514 0.040 1

9132 08:25:35.53 -39:05:56.5 11.949 0.006 11.669 0.005 11.608 0.004 11.609 0.004 11.925 0.022 11.645 0.024 11.592 0.022 2

9133 08:27:12.87 -25:07:58.8 11.521 0.007 11.048 0.008 10.965 0.016 10.960 0.010 11.479 0.024 11.044 0.023 10.932 0.028 1

9134 08:29:25.11 +05:56:08.5 11.881 0.007 11.624 0.005 11.575 0.005 11.596 0.006 11.859 0.033 11.612 0.037 11.592 0.029 1

9135 08:36:12.64 -10:13:37.1 12.362 0.010 12.098 0.011 --- --- 12.040 0.014 12.351 0.023 12.108 0.026 11.970 0.029 1

9136 08:54:21.38 -54:48:10.6 12.489 0.008 12.214 0.008 12.138 0.018 12.142 0.011 12.491 0.023 12.176 0.031 12.113 0.030 1

9137 09:15:50.39 -36:32:33.2 11.153 0.007 10.891 0.007 10.830 0.019 10.836 0.010 11.203 0.029 10.882 0.037 10.836 0.031 1

9138 09:41:35.89 +00:33:14.8 11.354 0.006 11.041 0.006 10.981 0.015 10.982 0.008 11.366 0.030 11.051 0.022 10.985 0.029 1

9139 09:42:58.45 +59:03:42.3 11.683 0.008 11.338 0.007 11.276 0.011 11.282 0.010 11.665 0.029 11.332 0.030 11.273 0.032 1

9140 09:45:43.19 -45:49:37.7 11.409 0.011 11.085 0.008 --- --- 11.022 0.012 11.361 0.018 11.053 0.019 10.989 0.020 2

9141 09:48:56.40 -10:30:32.3 11.081 0.008 10.775 0.008 10.715 0.035 10.718 0.010 11.055 0.026 10.760 0.029 10.705 0.028 1

9142 10:06:28.87 +41:01:24.7 11.993 0.006 11.729 0.005 11.686 0.009 11.697 0.007 12.009 0.032 11.739 0.035 11.672 0.033 1

9143 10:33:51.71 +04:49:03.4 12.344 0.007 12.121 0.005 12.067 0.006 12.081 0.005 12.354 0.025 12.126 0.025 12.073 0.027 1

9144 10:47:23.92 -44:34:05.8 11.642 0.009 11.335 0.008 11.263 0.018 11.280 0.010 11.592 0.039 11.321 0.025 11.258 0.028 1

9145 12:13:11.97 +64:28:56.4 11.958 0.009 11.711 0.008 11.664 0.011 11.675 0.009 11.947 0.027 --- --- --- --- 1

9146 12:01:45.16 -50:03:10.6 11.323 0.007 11.002 0.005 10.931 0.003 10.936 0.004 11.322 0.024 10.990 0.027 10.921 0.022 1

9147 12:03:30.97 -69:04:48.7 12.111 0.007 11.803 0.007 11.722 0.013 11.724 0.007 12.090 0.025 11.815 0.030 11.736 0.033 1

9148 12:14:25.37 +35:35:54.7 11.642 0.009 11.378 0.008 11.324 0.011 11.343 0.008 11.623 0.025 11.371 0.027 11.331 0.031 1

9149 12:21:39.27 -00:07:12.0 12.213 0.007 11.917 0.006 11.861 0.005 11.865 0.005 12.200 0.018 11.910 0.021 11.868 0.022 2

9150 13:17:29.35 -05:32:38.3 11.661 0.008 11.310 0.007 11.250 0.014 11.267 0.008 11.648 0.032 11.318 0.030 11.306 0.030 1

9152 13:58:40.20 +52:06:25.7 11.149 0.009 10.878 0.007 10.831 0.011 10.839 0.010 11.119 0.023 10.910 0.020 10.826 0.020 2

9153 14:07:33.76 +12:23:50.6 11.947 0.008 11.605 0.008 11.560 0.013 11.540 0.008 11.933 0.021 11.567 0.030 11.501 0.032 1

9155 14:40:57.95 -00:27:46.1 12.045 0.008 11.701 0.005 11.622 0.005 11.633 0.005 12.032 0.016 11.689 0.020 11.627 0.020 1

9156 14:51:57.96 +71:43:17.3 10.873 0.008 10.588 0.006 10.523 0.009 10.530 0.007 10.836 0.017 10.565 0.021 10.478 0.019 2

9157 14:56:51.43 -44:49:14.1 11.341 0.007 10.924 0.005 10.851 0.004 10.849 0.004 11.333 0.022 10.912 0.024 10.847 0.022 1

9158 14:58:33.17 +37:08:32.2 11.640 0.008 11.277 0.006 11.210 0.008 11.223 0.007 11.631 0.026 11.276 0.027 11.215 0.030 1

9162 15:59:13.59 +47:36:42.0 12.258 0.012 11.924 0.008 11.857 0.013 11.868 0.012 12.283 0.037 12.004 0.035 11.867 0.031 1

9164 16:26:42.85 +05:52:23.7 12.180 0.007 11.895 0.006 11.842 0.007 11.844 0.006 12.178 0.017 11.904 0.019 11.849 0.022 1

9166 16:31:33.82 +30:08:46.6 11.816 0.007 11.479 0.005 11.419 0.007 11.429 0.006 11.806 0.026 11.479 0.028 11.431 0.029 1

9169 17:13:44.92 +54:33:17.9 11.355 0.007 11.118 0.005 11.075 0.008 11.080 0.007 11.331 0.024 11.138 0.031 11.057 0.033 1

9170 17:27:22.26 -00:19:23.5 11.132 0.005 10.835 0.005 10.739 0.006 10.744 0.005 11.094 0.033 10.824 0.028 10.716 0.028 1

9172 17:48:22.22 -45:25:44.8 12.477 0.009 12.118 0.006 12.026 0.006 12.031 0.006 12.463 0.024 12.110 0.025 12.030 0.024 2

9175 18:28:08.43 -69:26:03.1 12.252 0.006 11.916 0.007 11.834 0.011 11.839 0.007 12.217 0.018 11.881 0.022 11.788 0.028 2

9177 18:39:33.87 +49:05:37.6 12.104 0.005 11.764 0.004 11.688 0.006 11.696 0.005 12.099 0.026 11.770 0.030 11.699 0.031 1

9178 19:01:55.41 -04:29:12.0 10.966 0.007 10.658 0.008 10.566 0.014 10.575 0.008 10.935 0.015 10.620 0.017 10.548 0.016 1

9181 20:31:19.59 -49:38:48.5 12.464 0.011 12.127 0.008 12.095 0.007 12.070 0.007 12.479 0.029 12.134 0.030 12.056 0.028 1

9182 20:41:05.44 -05:03:43.4 11.479 0.005 11.142 0.005 11.082 0.010 11.085 0.005 11.467 0.019 11.136 0.021 11.085 0.022 1

9183 20:52:47.36 +06:40:04.4 12.247 0.004 11.940 0.004 11.873 0.007 11.880 0.005 12.242 0.034 11.910 0.042 11.857 0.035 1

9185 22:02:05.75 -01:06:01.0 12.021 0.005 11.662 0.004 11.586 0.012 11.585 0.005 --- --- 11.638 0.033 11.572 0.031 1

9187 23:23:34.33 -15:21:09.1 11.857 0.003 11.596 0.003 11.538 0.009 11.542 0.003 11.850 0.029 11.551 0.023 11.492 0.031 1

9188 23:30:33.13 +38:18:57.8 11.634 0.005 11.337 0.004 11.257 0.008 11.262 0.006 11.641 0.025 11.362 0.025 11.275 0.032 1

Table 10: Primary LCO Standards
Name	Coordinates (J2000)	LCO Photometry	2MASS Photometry
	RA	Dec	J	EJ	H	EH	K	EK	K_s	EK_s	J	EJ	H	EH	K_s	EK_s	N
9101	00:24:28.47	+07:49:00.6	11.622	0.005	11.298	0.005	11.223	0.008	11.223	0.005	11.620	0.029	11.286	0.028	11.198	0.027	1
9103	00:33:15.05	-39:24:10.1	10.932	0.006	10.657	0.004	10.596	0.005	10.594	0.004	10.916	0.024	10.646	0.026	10.591	0.025	1
9104	01:03:15.95	-04:20:49.3	11.045	0.005	10.750	0.005	10.693	0.010	10.695	0.005	11.036	0.032	10.752	0.032	10.722	0.030	1
9106	03:26:54.66	-39:50:50.7	12.153	0.007	11.842	0.005	11.772	0.010	11.788	0.006	12.120	0.021	11.832	0.020	11.765	0.021	2
9107	03:32:02.59	+37:20:39.4	11.934	0.005	11.610	0.004	11.492	0.011	11.503	0.005	11.943	0.021	11.620	0.023	11.519	0.023	1
9108	03:41:02.22	+06:56:16.5	11.737	0.009	11.431	0.006	11.337	0.008	11.336	0.005	11.738	0.014	11.432	0.016	11.348	0.019	2
9109	04:18:18.92	-69:27:34.6	11.552	0.002	11.326	0.002	11.255	0.027	11.269	0.002	11.552	0.035	11.313	0.033	11.237	0.031	1
9111	04:49:54.24	-35:11:13.8	11.246	0.006	11.031	0.006	10.992	0.033	10.980	0.006	11.226	0.032	11.016	0.030	10.988	0.029	1
9113	05:10:25.67	-44:52:44.5	11.059	0.005	10.766	0.005	10.708	0.034	10.713	0.005	11.029	0.026	10.788	0.036	10.697	0.027	1
9115	05:36:44.62	-34:46:36.9	12.069	0.007	11.874	0.005	11.826	0.007	11.831	0.005	12.001	0.021	11.833	0.019	11.814	0.021	2
9116	05:42:32.15	+00:09:02.1	11.426	0.009	11.148	0.009	11.077	0.014	11.058	0.008	11.437	0.025	11.107	0.033	11.072	0.029	1
9118	06:22:43.85	-00:36:28.9	11.723	0.011	11.357	0.009	11.264	0.016	11.261	0.010	11.758	0.025	11.375	0.037	11.272	0.027	1
9119	06:29:29.10	-59:39:30.8	12.114	0.006	11.838	0.005	11.765	0.009	11.781	0.005	12.106	0.020	11.831	0.025	11.770	0.028	2
9121	06:42:36.35	-45:09:06.8	11.719	0.004	11.434	0.004	---	---	11.372	0.004	11.698	0.031	11.453	0.031	11.357	0.028	1
9122	07:00:51.80	+48:29:23.1	11.680	0.006	11.408	0.006	11.356	0.013	11.352	0.006	11.682	0.022	11.412	0.025	11.359	0.025	1
9123	06:59:45.85	-30:13:49.9	10.833	0.007	10.499	0.007	10.431	0.015	10.442	0.009	10.829	0.037	10.554	0.028	10.409	0.027	1
9125	07:19:37.39	-84:35:01.1	10.885	0.007	10.598	0.006	10.514	0.013	10.522	0.008	10.982	0.032	10.618	0.025	10.511	0.028	1
9126	07:30:34.46	+29:51:11.9	11.876	0.013	11.522	0.014	---	---	11.450	0.022	11.868	0.025	11.529	0.022	11.457	0.025	2
9129	08:01:15.09	-50:19:37.0	10.914	0.007	10.585	0.006	10.487	0.021	10.496	0.009	10.885	0.033	10.547	0.030	10.418	0.027	1
9131	08:25:42.85	+73:01:17.9	10.819	0.008	10.546	0.007	10.499	0.010	10.515	0.008	10.851	0.047	10.541	0.039	10.514	0.040	1
9132	08:25:35.53	-39:05:56.5	11.949	0.006	11.669	0.005	11.608	0.004	11.609	0.004	11.925	0.022	11.645	0.024	11.592	0.022	2
9133	08:27:12.87	-25:07:58.8	11.521	0.007	11.048	0.008	10.965	0.016	10.960	0.010	11.479	0.024	11.044	0.023	10.932	0.028	1
9134	08:29:25.11	+05:56:08.5	11.881	0.007	11.624	0.005	11.575	0.005	11.596	0.006	11.859	0.033	11.612	0.037	11.592	0.029	1
9135	08:36:12.64	-10:13:37.1	12.362	0.010	12.098	0.011	---	---	12.040	0.014	12.351	0.023	12.108	0.026	11.970	0.029	1
9136	08:54:21.38	-54:48:10.6	12.489	0.008	12.214	0.008	12.138	0.018	12.142	0.011	12.491	0.023	12.176	0.031	12.113	0.030	1
9137	09:15:50.39	-36:32:33.2	11.153	0.007	10.891	0.007	10.830	0.019	10.836	0.010	11.203	0.029	10.882	0.037	10.836	0.031	1
9138	09:41:35.89	+00:33:14.8	11.354	0.006	11.041	0.006	10.981	0.015	10.982	0.008	11.366	0.030	11.051	0.022	10.985	0.029	1
9139	09:42:58.45	+59:03:42.3	11.683	0.008	11.338	0.007	11.276	0.011	11.282	0.010	11.665	0.029	11.332	0.030	11.273	0.032	1
9140	09:45:43.19	-45:49:37.7	11.409	0.011	11.085	0.008	---	---	11.022	0.012	11.361	0.018	11.053	0.019	10.989	0.020	2
9141	09:48:56.40	-10:30:32.3	11.081	0.008	10.775	0.008	10.715	0.035	10.718	0.010	11.055	0.026	10.760	0.029	10.705	0.028	1
9142	10:06:28.87	+41:01:24.7	11.993	0.006	11.729	0.005	11.686	0.009	11.697	0.007	12.009	0.032	11.739	0.035	11.672	0.033	1
9143	10:33:51.71	+04:49:03.4	12.344	0.007	12.121	0.005	12.067	0.006	12.081	0.005	12.354	0.025	12.126	0.025	12.073	0.027	1
9144	10:47:23.92	-44:34:05.8	11.642	0.009	11.335	0.008	11.263	0.018	11.280	0.010	11.592	0.039	11.321	0.025	11.258	0.028	1
9145	12:13:11.97	+64:28:56.4	11.958	0.009	11.711	0.008	11.664	0.011	11.675	0.009	11.947	0.027	---	---	---	---	1
9146	12:01:45.16	-50:03:10.6	11.323	0.007	11.002	0.005	10.931	0.003	10.936	0.004	11.322	0.024	10.990	0.027	10.921	0.022	1
9147	12:03:30.97	-69:04:48.7	12.111	0.007	11.803	0.007	11.722	0.013	11.724	0.007	12.090	0.025	11.815	0.030	11.736	0.033	1
9148	12:14:25.37	+35:35:54.7	11.642	0.009	11.378	0.008	11.324	0.011	11.343	0.008	11.623	0.025	11.371	0.027	11.331	0.031	1
9149	12:21:39.27	-00:07:12.0	12.213	0.007	11.917	0.006	11.861	0.005	11.865	0.005	12.200	0.018	11.910	0.021	11.868	0.022	2
9150	13:17:29.35	-05:32:38.3	11.661	0.008	11.310	0.007	11.250	0.014	11.267	0.008	11.648	0.032	11.318	0.030	11.306	0.030	1
9152	13:58:40.20	+52:06:25.7	11.149	0.009	10.878	0.007	10.831	0.011	10.839	0.010	11.119	0.023	10.910	0.020	10.826	0.020	2
9153	14:07:33.76	+12:23:50.6	11.947	0.008	11.605	0.008	11.560	0.013	11.540	0.008	11.933	0.021	11.567	0.030	11.501	0.032	1
9155	14:40:57.95	-00:27:46.1	12.045	0.008	11.701	0.005	11.622	0.005	11.633	0.005	12.032	0.016	11.689	0.020	11.627	0.020	1
9156	14:51:57.96	+71:43:17.3	10.873	0.008	10.588	0.006	10.523	0.009	10.530	0.007	10.836	0.017	10.565	0.021	10.478	0.019	2
9157	14:56:51.43	-44:49:14.1	11.341	0.007	10.924	0.005	10.851	0.004	10.849	0.004	11.333	0.022	10.912	0.024	10.847	0.022	1
9158	14:58:33.17	+37:08:32.2	11.640	0.008	11.277	0.006	11.210	0.008	11.223	0.007	11.631	0.026	11.276	0.027	11.215	0.030	1
9162	15:59:13.59	+47:36:42.0	12.258	0.012	11.924	0.008	11.857	0.013	11.868	0.012	12.283	0.037	12.004	0.035	11.867	0.031	1
9164	16:26:42.85	+05:52:23.7	12.180	0.007	11.895	0.006	11.842	0.007	11.844	0.006	12.178	0.017	11.904	0.019	11.849	0.022	1
9166	16:31:33.82	+30:08:46.6	11.816	0.007	11.479	0.005	11.419	0.007	11.429	0.006	11.806	0.026	11.479	0.028	11.431	0.029	1
9169	17:13:44.92	+54:33:17.9	11.355	0.007	11.118	0.005	11.075	0.008	11.080	0.007	11.331	0.024	11.138	0.031	11.057	0.033	1
9170	17:27:22.26	-00:19:23.5	11.132	0.005	10.835	0.005	10.739	0.006	10.744	0.005	11.094	0.033	10.824	0.028	10.716	0.028	1
9172	17:48:22.22	-45:25:44.8	12.477	0.009	12.118	0.006	12.026	0.006	12.031	0.006	12.463	0.024	12.110	0.025	12.030	0.024	2
9175	18:28:08.43	-69:26:03.1	12.252	0.006	11.916	0.007	11.834	0.011	11.839	0.007	12.217	0.018	11.881	0.022	11.788	0.028	2
9177	18:39:33.87	+49:05:37.6	12.104	0.005	11.764	0.004	11.688	0.006	11.696	0.005	12.099	0.026	11.770	0.030	11.699	0.031	1
9178	19:01:55.41	-04:29:12.0	10.966	0.007	10.658	0.008	10.566	0.014	10.575	0.008	10.935	0.015	10.620	0.017	10.548	0.016	1
9181	20:31:19.59	-49:38:48.5	12.464	0.011	12.127	0.008	12.095	0.007	12.070	0.007	12.479	0.029	12.134	0.030	12.056	0.028	1
9182	20:41:05.44	-05:03:43.4	11.479	0.005	11.142	0.005	11.082	0.010	11.085	0.005	11.467	0.019	11.136	0.021	11.085	0.022	1
9183	20:52:47.36	+06:40:04.4	12.247	0.004	11.940	0.004	11.873	0.007	11.880	0.005	12.242	0.034	11.910	0.042	11.857	0.035	1
9185	22:02:05.75	-01:06:01.0	12.021	0.005	11.662	0.004	11.586	0.012	11.585	0.005	---	---	11.638	0.033	11.572	0.031	1
9187	23:23:34.33	-15:21:09.1	11.857	0.003	11.596	0.003	11.538	0.009	11.542	0.003	11.850	0.029	11.551	0.023	11.492	0.031	1
9188	23:30:33.13	+38:18:57.8	11.634	0.005	11.337	0.004	11.257	0.008	11.262	0.006	11.641	0.025	11.362	0.025	11.275	0.032	1

Return to Section VI.3.