Swift Trigger: 945344;

Presumed name: GRB 191220A

BAT	18^h 45^m 33.84^s, +26° 40′ 01.2″
position:	(281.391, +26.667 ± 180″)
XRT	18^h 45^m 31.20^s, +26° 39′ 20.9″
position:	(281.3800, 26.6558 ± 2.3″)
UVOT	No position available.
Galactic N_HI:	1.01×10⁰ cm^-2
Galactic E(B-V):	0.148 mag

Best RA:	18^h 45^m 31.20^s	= 281.3800 d
Best Dec:	+26° 39′ 20.9″	= 26.6558 d

Gal Lat:	13.01
Gal Long:	56.45

Sun angle:	51.76°, -0.9 hr East of Sun

¹Sper #6 auto processing.

Galaxies within 3.33 of XRT position

	RA*	Dec*		Catalogue
5.4	281.3814	26.6566	B2=21.2, I=18.4, R1=19.3, R2=19.2	USNO-B1
5.4	281.3812	26.6564		NED
8.6	281.3775	26.6564		NED
21.5	281.3769	26.6505	B2=21.4, I=18.2, R2=20.0	USNO-B1
22.2	281.3863	26.6586		NED
22.4	281.3733	26.6539		NED
25.8	281.3865	26.6516	I=18.4, R2=19.2	USNO-B1
26.2	281.3867	26.6600		NED
26.4	281.3863	26.6514		NED
26.9	281.3846	26.6494		NED
31.3	281.3897	26.6561	B2=19.8, I=16.7, R1=18.5, R2=18.4	USNO-B1
32.0	281.3900	26.6561		NED
32.9	281.3838	26.6642		NED
38.6	281.3829	26.6453		NED
39.7	281.3675	26.6550		NED
44.8	281.3675	26.6500		NED
44.9	281.3933	26.6528		NED
45.9	281.3772	26.6433	B1=20.6, B2=20.8	USNO-B1
47.2	281.3913	26.6478		NED
47.3	281.3687	26.6642		NED
47.8	281.3933	26.6503		NED
51.2	281.3908	26.6664		NED
51.3	281.3742	26.6692		NED
51.8	281.3663	26.6481		NED
52.8	281.3909	26.6667	I=17.6, R2=17.6	USNO-B1
53.4	281.3864	26.6421	B2=21.2, I=18.1, R1=18.9, R2=19.5	USNO-B1
53.8	281.3875	26.6692		NED
54.4	281.3925	26.6456		NED
54.4	281.3960	26.6606	B1=20.1, B2=18.8, I=17.0, R1=17.8, R2=16.7	USNO-B1
54.8	281.3804	26.6406		NED
55.3	281.3949	26.6482	B1=19.4, B2=18.5, I=17.8, R1=18.2, R2=17.6	USNO-B1
55.3	281.3946	26.6481		NED
55.7	281.3917	26.6672		NED
55.9	281.3963	26.6606		NED
56.8	281.3696	26.6686		NED
57.2	281.3700	26.6689		NED
57.4	281.3637	26.6622		NED
58.0	281.3621	26.6531		NED
58.1	281.3625	26.6597		NED
58.6	281.3971	26.6614		NED
59.4	281.3867	26.6403		NED
59.4	281.3954	26.6647		NED
60.5	281.3615	26.6590	B2=21.9, R1=19.1, R2=18.3	USNO-B1
61.2	281.3742	26.6396	B2=21.7, R2=20.1	USNO-B1
61.7	281.3983	26.6514		NED
62.9	281.3608	26.6597		NED
64.4	281.3988	26.6622		NED
64.7	281.3988	26.6625		NED
66.5	281.3634	26.6448	B2=21.0, I=18.4, R2=18.9	USNO-B1
66.9	281.3633	26.6447		NED
68.5	281.3921	26.6400		NED
69.0	281.3613	26.6653		NED
69.3	281.3921	26.6400		NED
69.9	281.3925	26.6399	B1=19.5, B2=17.4, I=14.9, R1=15.3, R2=15.0	USNO-B1
70.2	281.3800	26.6364		NED
71.1	281.4008	26.6494		NED
71.1	281.3881	26.6374	I=17.4, R1=19.5	USNO-B1
71.2	281.3879	26.6375		NED
71.2	281.3871	26.6744		NED
71.7	281.3796	26.6758		NED
71.8	281.3625	26.6683		NED
71.9	281.3796	26.6758		NED
72.0	281.3626	26.6684	B1=17.9, B2=17.3, I=16.5, R1=16.7, R2=16.4	USNO-B1
72.5	281.3968	26.6692	B2=20.0, R1=19.0, R2=18.6	USNO-B1
72.8	281.3933	26.6394		NED
72.9	281.3575	26.6531		NED
73.5	281.3579	26.6619		NED
73.8	281.3581	26.6619	I=17.9, R2=19.2	USNO-B1
74.0	281.3975	26.6689		NED
75.1	281.3775	26.6767		NED
75.1	281.3929	26.6731		NED
75.2	281.3860	26.6760	B1=19.2, B2=17.9, I=17.9, R1=17.3, R2=16.4	USNO-B1
76.4	281.3658	26.6731		NED
76.5	281.3750	26.6350		NED
77.0	281.3658	26.6731		NED
78.1	281.3796	26.6342		NED
79.5	281.3657	26.6378	B1=20.8, B2=20.7	USNO-B1
79.9	281.4042	26.6517		NED
80.6	281.3645	26.6734	B2=21.1, R1=19.1, R2=19.1	USNO-B1
80.8	281.4046	26.6594		NED
81.4	281.3558	26.6492		NED
82.0	281.3867	26.6778		NED
85.1	281.3762	26.6792		NED
85.2	281.3587	26.6419		NED
85.6	281.3762	26.6794		NED
85.9	281.3829	26.6322		NED
86.3	281.4067	26.6528		NED
87.1	281.3650	26.6356		NED
87.8	281.3629	26.6367		NED
89.2	281.3979	26.6747		NED
90.3	281.3592	26.6389		NED
90.9	281.3804	26.6306		NED
91.4	281.3637	26.6767		NED
91.6	281.3629	26.6764		NED
91.7	281.3635	26.6766	B1=20.2, B2=20.1, I=17.7, R1=18.1, R2=18.3	USNO-B1
91.7	281.4058	26.6664		NED
92.9	281.3913	26.6319		NED
93.2	281.3621	26.6761		NED
93.5	281.4054	26.6431		NED
93.7	281.3800	26.6819		NED
94.3	281.3583	26.6733		NED
94.7	281.3992	26.6358		NED
95.0	281.3991	26.6357	B1=18.5, B2=17.7, I=17.1, R1=17.2, R2=16.7	USNO-B1
95.3	281.3988	26.6356		NED
96.6	281.3500	26.6547	B2=20.5, I=18.4, R1=18.8, R2=19.2	USNO-B1
97.5	281.3833	26.6828		NED
97.7	281.3779	26.6286		NED
97.9	281.4104	26.6559	B1=20.3, B2=18.5, I=16.4, R1=17.3, R2=16.8	USNO-B1
97.9	281.4104	26.6558		NED
101.1	281.3921	26.6817		NED
101.6	281.3921	26.6819		NED
101.7	281.3971	26.6794		NED
101.8	281.3858	26.6281		NED
101.9	281.3536	26.6401	B1=20.3, B2=19.4, I=18.1, R1=19.4, R2=19.1	USNO-B1
102.1	281.3504	26.6450		NED
102.1	281.4087	26.6436		NED
102.2	281.4087	26.6436	B1=17.4, B2=16.7, I=16.0, R1=16.2, R2=15.9	USNO-B1
102.4	281.3975	26.6794		NED
102.5	281.3965	26.6802	B1=20.0, B2=18.8, I=18.1, R1=18.7, R2=18.2	USNO-B1
103.3	281.4108	26.6642		NED
103.3	281.3525	26.6411		NED
103.8	281.3868	26.6276	I=18.2, R2=20.2	USNO-B1
104.6	281.3950	26.6300		NED
104.8	281.3871	26.6842		NED
105.0	281.3562	26.6356		NED
105.0	281.3537	26.6383		NED
105.1	281.3475	26.6589		NED
105.3	281.3983	26.6800		NED
106.2	281.3537	26.6381		NED
107.5	281.3921	26.6836		NED
108.0	281.3762	26.6258		NED
108.8	281.4108	26.6678		NED
109.2	281.4025	26.6331		NED
110.2	281.3458	26.6531		NED
110.4	281.3783	26.6864		NED
112.4	281.4146	26.6606		NED
113.1	281.3462	26.6469		NED
113.5	281.3542	26.6772		NED
114.4	281.3721	26.6247		NED
114.4	281.3541	26.6776	B1=20.0, B2=19.3, I=18.6, R1=19.1, R2=18.6	USNO-B1
115.1	281.4137	26.6667		NED
115.2	281.4104	26.6392		NED
115.7	281.3554	26.6792	R1=19.0, R2=18.5	USNO-B1
115.8	281.4107	26.6391	B1=19.8, B2=18.7, I=18.3, R1=18.5, R2=17.9	USNO-B1
115.8	281.4017	26.6814		NED
115.9	281.3764	26.6878	B1=20.0, B2=20.1, R2=18.6	USNO-B1
116.3	281.4021	26.6814		NED
117.1	281.3963	26.6269		NED
117.2	281.3487	26.6386		NED
117.3	281.3467	26.6428		NED
118.7	281.3971	26.6264		NED
118.9	281.3446	26.6653		NED
119.1	281.3971	26.6853		NED
119.4	281.3971	26.6852	B1=19.1, B2=17.7, I=16.2, R1=16.7, R2=16.1	USNO-B1
120.0	281.4109	26.6744	B1=20.0, B2=18.6, R1=18.1, R2=17.4	USNO-B1
120.1	281.4108	26.6744		NED
120.7	281.3596	26.6278		NED
121.4	281.3425	26.6522		NED
121.7	281.3725	26.6228		NED
122.3	281.3827	26.6219	B1=20.4, B2=20.0, I=18.6, R2=19.3	USNO-B1
122.7	281.3996	26.6267		NED
123.2	281.3593	26.6270	B1=20.0, B2=18.7	USNO-B1
124.5	281.4144	26.6399	B1=21.0, B2=19.8, R1=19.8	USNO-B1
124.5	281.3843	26.6214	B1=19.7, B2=19.1, I=17.8, R1=18.6, R2=18.2	USNO-B1
124.7	281.3846	26.6214		NED
125.3	281.4108	26.6767		NED
125.5	281.4111	26.6768	B1=20.9, B2=19.4, I=17.4, R1=18.7, R2=17.5	USNO-B1
126.1	281.4179	26.6642		NED
126.1	281.4180	26.6643	B1=18.9, B2=17.8, I=16.4, R1=17.3, R2=17.0	USNO-B1
126.4	281.3450	26.6717		NED
126.8	281.3958	26.6881		NED
127.0	281.3413	26.6619		NED
127.3	281.3558	26.6839		NED
127.7	281.3525	26.6817		NED
127.8	281.3989	26.6246	I=18.5, R2=19.9	USNO-B1
128.0	281.3915	26.6898	B1=19.1, B2=18.3, I=17.8, R1=17.9, R2=17.1	USNO-B1
128.1	281.3988	26.6244		NED
128.5	281.3913	26.6900		NED
129.1	281.4196	26.6615	B1=16.0, B2=20.3, R1=16.1	USNO-B1
129.2	281.3729	26.6206		NED
129.5	281.4146	26.6375		NED
130.0	281.4196	26.6631		NED
130.3	281.4025	26.6858		NED
130.7	281.4025	26.6861	B1=20.3, B2=18.8, I=17.1, R1=18.2, R2=17.5	USNO-B1
131.2	281.3904	26.6206		NED
131.9	281.4104	26.6803		NED
132.4	281.3487	26.6797		NED
132.7	281.4200	26.6647		NED
132.9	281.3483	26.6322		NED
133.0	281.3692	26.6914		NED
133.6	281.3579	26.6244		NED
133.9	281.3383	26.6572		NED
134.8	281.3400	26.6672		NED
134.8	281.4104	26.6814		NED
135.1	281.4201	26.6670	B1=18.0, B2=17.2, R1=16.4, R2=16.0	USNO-B1
135.1	281.4200	26.6669		NED
135.2	281.3921	26.6917		NED
136.1	281.4108	26.6817		NED
136.3	281.4071	26.6850		NED
137.0	281.3883	26.6931		NED
137.1	281.4179	26.6733		NED
137.3	281.3629	26.6208		NED
137.4	281.3637	26.6911		NED
137.9	281.4221	26.6486		NED
138.0	281.4212	26.6656		NED
138.1	281.3996	26.6900		NED
138.4	281.4216	26.6657	B1=16.1, B2=15.4, I=14.7, R1=14.4, R2=14.4	USNO-B1
138.5	281.4217	26.6656		NED
138.5	281.3371	26.6517		NED
138.8	281.4154	26.6339		NED
140.7	281.3492	26.6833		NED
141.0	281.3446	26.6325		NED
141.1	281.3448	26.6324	B2=20.2, I=17.4, R1=19.0, R2=18.6	USNO-B1
141.9	281.3446	26.6323	B2=20.5, I=17.9, R1=18.5, R2=18.0	USNO-B1
142.7	281.3604	26.6914		NED
142.7	281.3362	26.6495	R1=19.7, R2=19.2	USNO-B1
142.9	281.4217	26.6419		NED
143.0	281.4216	26.6419	B1=16.9, B2=16.1, I=15.0, R1=15.5, R2=15.2	USNO-B1
143.9	281.3421	26.6347		NED
144.4	281.3650	26.6936		NED
144.6	281.4238	26.6639		NED
145.1	281.3954	26.6936		NED
145.2	281.4250	26.6525	B1=18.7, B2=17.2, I=16.8, R1=17.2, R2=16.0	USNO-B1
145.2	281.4250	26.6525		NED
145.2	281.4242	26.6642	B1=20.5, B2=19.0, I=17.7, R1=18.7, R2=18.5	USNO-B1
145.6	281.4229	26.6689		NED
145.6	281.3592	26.6197		NED
145.6	281.3725	26.6158		NED
146.2	281.3353	26.6486	I=18.8, R2=19.2	USNO-B1
146.4	281.3350	26.6489		NED
147.2	281.3792	26.6967		NED
148.1	281.4087	26.6878		NED
148.6	281.4096	26.6242		NED
149.3	281.3618	26.6940	B2=21.0, R2=19.5	USNO-B1
149.6	281.3892	26.6150		NED
150.1	281.3867	26.6969		NED
150.1	281.3363	26.6417		NED
150.8	281.3958	26.6164		NED
151.4	281.4196	26.6331		NED
151.8	281.3654	26.6958		NED
151.9	281.4196	26.6789		NED
152.3	281.4200	26.6786		NED
153.2	281.4208	26.6342		NED
153.4	281.4208	26.6342		NED
153.4	281.3575	26.6933		NED
153.7	281.3383	26.6347		NED
153.9	281.4246	26.6717		NED
154.0	281.3788	26.6131		NED
154.4	281.3792	26.6131		NED
154.7	281.3571	26.6936		NED
155.2	281.4175	26.6831		NED
155.4	281.4183	26.6297		NED
155.8	281.4017	26.6172		NED
155.8	281.4008	26.6947		NED
155.9	281.4250	26.6397		NED
156.8	281.4288	26.6550		NED
157.1	281.3312	26.6575		NED
157.8	281.3743	26.6122	B2=20.2, R2=19.2	USNO-B1
158.1	281.4200	26.6306		NED
158.8	281.3312	26.6625		NED
159.2	281.4168	26.6263	B1=20.9, B2=19.9, R1=19.4	USNO-B1
159.3	281.4290	26.6496	B1=20.3, B2=18.6, R2=18.8	USNO-B1
160.0	281.4029	26.6950		NED
160.1	281.4150	26.6875		NED
160.3	281.3429	26.6856		NED
160.3	281.3517	26.6192		NED
161.3	281.4156	26.6874	B1=20.7, B2=19.7, I=17.9, R1=19.0, R2=18.6	USNO-B1
161.5	281.3792	26.7006		NED
161.6	281.3525	26.6936		NED
161.8	281.3774	26.7007	B1=20.6, B2=20.6, R2=18.8	USNO-B1
162.0	281.4067	26.6939		NED
162.1	281.3525	26.6936		NED
162.2	281.4295	26.6642	B1=20.9, R2=19.2	USNO-B1
162.3	281.3546	26.6947		NED
163.3	281.4170	26.6248	B2=19.9, I=17.8, R2=17.4	USNO-B1
163.4	281.4054	26.6164		NED
163.7	281.3292	26.6517		NED
163.7	281.4261	26.6365	B1=17.7, B2=16.6, I=15.7, R1=16.0, R2=15.6	USNO-B1
163.8	281.4258	26.6364		NED
164.3	281.3583	26.6144		NED
164.6	281.4154	26.6228		NED
165.0	281.3667	26.6115	B2=18.2, I=17.7, R1=18.4, R2=18.5	USNO-B1
165.2	281.3442	26.6228		NED
165.6	281.3346	26.6775		NED
165.6	281.3847	26.7016	B2=19.6, R2=18.4	USNO-B1
165.8	281.4096	26.6183		NED
165.8	281.3342	26.6772		NED
166.3	281.3850	26.6097		NED
166.4	281.4238	26.6311		NED
166.9	281.3966	26.6119	B1=20.0, B2=18.8, I=17.4, R1=18.0, R2=17.5	USNO-B1
166.9	281.3967	26.6119		NED
167.2	281.4279	26.6739		NED
167.6	281.3852	26.7021	B1=20.6, B2=20.1, I=18.6, R1=18.8, R2=19.2	USNO-B1
167.6	281.3933	26.7008		NED
167.9	281.3775	26.7025		NED
167.9	281.3919	26.6104	B2=21.5, I=18.0, R1=19.6, R2=19.2	USNO-B1
167.9	281.3917	26.6103		NED
167.9	281.3775	26.7025		NED
168.1	281.3333	26.6767		NED
168.1	281.3625	26.6118	B1=18.7, I=18.7, R2=19.9	USNO-B1
168.1	281.3288	26.6661		NED
168.3	281.3283	26.6472		NED
169.4	281.3317	26.6369		NED
169.6	281.4108	26.6939		NED
169.7	281.4038	26.6978		NED
170.0	281.4242	26.6817		NED
170.0	281.4108	26.6942		NED
170.2	281.3746	26.7028	B2=21.1, R2=20.3	USNO-B1
170.2	281.3664	26.6101	B1=17.2, B2=16.8, I=15.4, R1=15.8, R2=15.6	USNO-B1
170.5	281.3950	26.6103		NED
170.5	281.4137	26.6194		NED
170.6	281.3663	26.6100		NED
170.6	281.3271	26.6500		NED
170.9	281.3271	26.6506		NED
171.0	281.4127	26.6183	B1=19.7, B2=18.8, I=18.1, R1=18.4, R2=17.9	USNO-B1
171.6	281.3433	26.6903		NED
171.7	281.3267	26.6539		NED
171.7	281.3446	26.6914		NED
171.9	281.3446	26.6917		NED
171.9	281.3267	26.6508		NED
171.9	281.3800	26.7036		NED
171.9	281.3266	26.6539	B1=19.9, B2=18.9, I=17.2, R1=18.0, R2=17.6	USNO-B1
172.7	281.3321	26.6772		NED
173.1	281.3317	26.6347		NED
173.2	281.4329	26.6483		NED
173.3	281.3279	26.6689		NED
173.5	281.3625	26.7014		NED
173.8	281.3426	26.6906	B2=19.7, R1=18.6, R2=18.9	USNO-B1
173.8	281.3775	26.6075		NED
174.0	281.3487	26.6953		NED
174.1	281.3296	26.6739		NED
174.3	281.3346	26.6293	B1=18.8, B2=18.4, I=16.8, R1=17.2, R2=16.9	USNO-B1
174.4	281.4336	26.6487	B1=20.4, I=17.8	USNO-B1
174.4	281.3346	26.6292		NED
174.6	281.4304	26.6381		NED
175.0	281.3358	26.6272		NED
175.6	281.3771	26.6069		NED
175.6	281.4308	26.6383		NED
175.7	281.3275	26.6422		NED
176.2	281.3271	26.6428		NED
176.7	281.4318	26.6396	B1=20.2, B2=18.7, I=18.3, R1=18.9, R2=17.9	USNO-B1
177.0	281.3288	26.6381		NED
177.5	281.4208	26.6889		NED
177.9	281.3254	26.6472		NED
178.0	281.4246	26.6267		NED
178.0	281.4074	26.6128	I=17.9, R1=19.8	USNO-B1
178.2	281.4075	26.6128		NED
179.1	281.3611	26.6090	B2=21.1, R2=19.2	USNO-B1
179.2	281.3613	26.6089		NED
179.5	281.4125	26.6961		NED
179.7	281.4212	26.6221	B1=17.8, B2=16.6, I=14.5, R1=15.1, R2=14.8	USNO-B1
179.7	281.3367	26.6872		NED
179.8	281.4208	26.6219		NED
180.0	281.4129	26.6156		NED
180.5	281.4079	26.6123	B2=19.8, I=17.8, R1=19.2, R2=17.8	USNO-B1
180.7	281.4115	26.6973	B1=15.6, B2=15.7, I=14.6, R2=14.0	USNO-B1
181.2	281.3858	26.7058		NED
181.3	281.4112	26.6978		NED
181.9	281.4058	26.7006		NED
182.2	281.3842	26.6053		NED
182.4	281.4342	26.6409	B1=20.0, B2=18.3, I=16.2, R1=17.0, R2=16.6	USNO-B1
182.5	281.4342	26.6408		NED
182.5	281.4286	26.6297	I=17.8, R1=19.1, R2=19.4	USNO-B1
182.6	281.3908	26.7056		NED
182.6	281.4288	26.6297		NED
182.7	281.4028	26.6093	B2=20.4, R2=19.3	USNO-B1
183.1	281.4233	26.6231		NED
183.1	281.3842	26.6050		NED
184.3	281.3562	26.7023	B2=21.6, R2=20.1	USNO-B1
186.7	281.4346	26.6733		NED
187.2	281.4218	26.6196	B2=20.3, I=17.5, R2=18.1	USNO-B1
187.3	281.4362	26.6431		NED
187.4	281.3304	26.6285	B2=20.3, R2=19.8	USNO-B1
187.5	281.3983	26.7052	B2=20.7, R2=20.0	USNO-B1
187.6	281.4371	26.6458		NED
187.7	281.4217	26.6194		NED
188.3	281.3275	26.6794		NED
189.7	281.3425	26.6150		NED
190.0	281.3725	26.7081		NED
190.4	281.4387	26.6625		NED
190.6	281.3288	26.6828		NED
190.9	281.3592	26.6061		NED
191.0	281.4387	26.6631		NED
191.1	281.3371	26.6925		NED
191.3	281.3896	26.6033		NED
191.9	281.3250	26.6353		NED
192.1	281.3567	26.7050		NED
192.7	281.3900	26.6031		NED
194.2	281.4275	26.6892		NED
194.3	281.4400	26.6606		NED
194.6	281.3870	26.7095	B1=20.4, B2=20.1, R2=19.6	USNO-B1
194.8	281.3613	26.7072		NED
194.9	281.3901	26.6024	I=17.7, R1=19.2, R2=19.0	USNO-B1
194.9	281.4142	26.6111		NED
195.5	281.3221	26.6719		NED
195.8	281.3512	26.7036		NED
195.9	281.3671	26.7089		NED
196.0	281.3367	26.6175		NED
196.1	281.4275	26.6219		NED
196.1	281.3204	26.6433		NED
196.3	281.4208	26.6964		NED
196.4	281.3900	26.6019		NED
196.7	281.4404	26.6631		NED
196.8	281.3673	26.7093	B2=21.0, I=18.1, R2=19.0	USNO-B1
196.9	281.3192	26.6494	I=18.6, R1=19.5, R2=19.4	USNO-B1
197.0	281.4333	26.6828		NED
197.1	281.4333	26.6828	B1=19.0, B2=17.5, I=16.6, R1=17.0, R2=16.4	USNO-B1
197.6	281.3275	26.6272		NED
197.7	281.4000	26.7078		NED
198.1	281.4071	26.6064		NED
198.3	281.3358	26.6944		NED
198.4	281.3575	26.7072		NED
198.6	281.4417	26.6594		NED
198.7	281.3808	26.7111		NED
198.7	281.3810	26.7110	B1=17.3, B2=16.5, I=15.0, R1=15.5, R2=15.2	USNO-B1
199.6	281.4419	26.6597	B1=20.3, B2=18.7, I=17.2, R1=17.7, R2=17.5	USNO-B1

Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example