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Swift Trigger: 430094;

Presumed name: GRB 100727A

Back to trigger list.

BAT 10h 16m 39.84s, -21° 21′ 51.8″
position:(154.166, -21.3644 ± 180″)
XRT 10h 16m 42.55s, -21° 23′ 25.1″
position:(154.1773, -21.3903 ± 2.3″)
UVOT No position available.
Galactic NHI:0.00×100 cm-2
Galactic E(B-V):0.050 mag
Best RA:10h 16m 42.55s= 154.1773 d
Best Dec:-21° 23′ 25.1″= -21.3903 d
Gal Lat:
Gal Long:
Sun angle:not found

Stars within 3.33 of XRT position

RA*Dec* CatalogueQuery
8.3154.1781-21.3881B1=19.4, B2=21.6USNO-B1Query vizier around this object
33.1154.1865-21.3936B2=20.7, I=18.5, R1=19.5, R2=19.0USNO-B1Query vizier around this object
34.6154.1690-21.3845h=15.6, j=16.4, k=15.52MASSQuery vizier around this object
39.8154.1731-21.4007B1=21.0, B2=20.3, R1=20.0, R2=19.6USNO-B1Query vizier around this object
40.0154.1698-21.3816B1=17.5, B2=20.6USNO-B1Query vizier around this object
46.5154.1818-21.4025B2=20.4, I=18.2, R1=19.0, R2=19.0USNO-B1Query vizier around this object
55.6154.1700-21.3765B2=21.4, R2=19.2USNO-B1Query vizier around this object
60.2154.1618-21.3819B1=18.4, R1=16.7USNO-B1Query vizier around this object
62.9154.1779-21.3728B2=19.7, I=18.9, R1=19.1, R2=18.7USNO-B1Query vizier around this object
64.6154.1583-21.3934B1=20.6, B2=20.0, I=18.0, R1=18.5, R2=18.4USNO-B1Query vizier around this object
64.8154.1756-21.3724B1=18.1, B2=17.9, I=16.8, R1=16.8, R2=16.9USNO-B1Query vizier around this object
64.8154.1582-21.3933h=16.0, j=16.7, k=15.82MASSQuery vizier around this object
65.1154.1579-21.3893B1=17.3, B2=15.4, I=16.4, R1=16.4, R2=15.8USNO-B1Query vizier around this object
65.2154.1756-21.3723h=15.8, j=16.0, k=15.52MASSQuery vizier around this object
70.4154.1600-21.3792B1=19.4, R1=17.2USNO-B1Query vizier around this object
71.5154.1848-21.4089B1=19.2, B2=18.6, I=17.5, R1=17.8, R2=17.5USNO-B1Query vizier around this object
71.7154.1848-21.4089h=16.1, j=16.6, k=15.92MASSQuery vizier around this object
72.3154.1581-21.3995R1=19.6, R2=19.7USNO-B1Query vizier around this object
75.8154.1598-21.3769B1=19.3, I=18.0, R1=17.0USNO-B1Query vizier around this object
77.8154.1870-21.4099B2=19.9, I=18.4, R1=19.5, R2=18.6USNO-B1Query vizier around this object
82.8154.1704-21.3682h=15.8, j=16.5, k=14.82MASSQuery vizier around this object
83.0154.1703-21.3682B2=19.4, I=16.8, R1=18.0, R2=16.4USNO-B1Query vizier around this object
83.9154.1708-21.3678B2=20.8, I=18.3, R1=16.3USNO-B1Query vizier around this object
85.2154.1587-21.4064B1=20.5, I=19.1, R1=17.1USNO-B1Query vizier around this object
85.9154.1633-21.3703B1=18.7, B2=18.4, I=17.1, R1=17.4, R2=17.5USNO-B1Query vizier around this object
86.0154.1633-21.3703h=16.2, j=16.3, k=16.52MASSQuery vizier around this object
88.7154.2026-21.3832B1=17.4, R2=19.7USNO-B1Query vizier around this object
89.7154.1755-21.3655B1=17.9, B2=17.8, I=16.4, R1=16.9, R2=16.7USNO-B1Query vizier around this object
89.8154.1958-21.3723B1=20.0, B2=19.6, I=17.8, R1=18.5, R2=18.2USNO-B1Query vizier around this object
89.9154.1690-21.3666B2=20.6, I=18.2, R1=19.5, R2=18.5USNO-B1Query vizier around this object
90.0154.1754-21.3654h=15.4, j=15.9, k=15.52MASSQuery vizier around this object
90.0154.1959-21.3722h=15.9, j=16.6, k=17.02MASSQuery vizier around this object
91.1154.1579-21.4080B2=20.4, I=17.9, R1=19.3, R2=18.8USNO-B1Query vizier around this object
91.2154.1579-21.4080h=15.8, j=16.5, k=15.62MASSQuery vizier around this object
95.6154.1997-21.3739B2=20.2, I=18.9, R1=19.6, R2=19.2USNO-B1Query vizier around this object
97.9154.1567-21.4096B1=21.0, B2=20.2, I=18.6, R1=19.2, R2=19.1USNO-B1Query vizier around this object
99.3154.1488-21.3979B2=21.1, I=17.6, R1=19.8, R2=18.9USNO-B1Query vizier around this object
100.4154.1486-21.3983h=15.9, j=16.3, k=15.52MASSQuery vizier around this object
101.0154.1612-21.3666B1=17.0, B2=17.9, I=16.8, R1=17.1USNO-B1Query vizier around this object
102.1154.1603-21.3668B1=17.8, B2=17.7, I=16.4, R1=16.9, R2=16.3USNO-B1Query vizier around this object
103.1154.1600-21.3666h=15.9, j=16.3, k=15.72MASSQuery vizier around this object
103.3154.1465-21.3902B2=21.0, R1=20.2, R2=19.6USNO-B1Query vizier around this object
104.8154.1580-21.3674B1=20.8, B2=20.2, I=18.6, R1=18.8, R2=18.7USNO-B1Query vizier around this object
105.0154.1579-21.3674h=15.9, j=17.0, k=15.72MASSQuery vizier around this object
106.0154.2038-21.3743B1=17.7, B2=21.0, R2=19.7USNO-B1Query vizier around this object
106.4154.1565-21.4126h=13.8, j=14.4, k=13.62MASSQuery vizier around this object
106.5154.1565-21.4126B1=18.7, B2=18.0, I=15.4, R1=16.4, R2=16.2USNO-B1Query vizier around this object
109.4154.1702-21.3606R1=19.6, R2=19.7USNO-B1Query vizier around this object
110.1154.2005-21.3687B1=20.3, B2=19.6, I=18.7, R1=19.3, R2=19.2USNO-B1Query vizier around this object
113.3154.1512-21.3704B2=21.3, R1=15.7, R2=19.7USNO-B1Query vizier around this object
114.3154.1873-21.3599B2=20.9, R2=19.6USNO-B1Query vizier around this object
114.5154.2066-21.3739B1=17.8, R1=20.8USNO-B1Query vizier around this object
115.0154.1594-21.3631B1=14.2, R1=16.1USNO-B1Query vizier around this object
115.1154.2089-21.4029h=14.7, j=15.1, k=13.02MASSQuery vizier around this object
115.9154.2089-21.4034B1=16.7, B2=16.6, I=13.9, R1=15.2, R2=15.2USNO-B1Query vizier around this object
116.5154.2088-21.4039h=12.9, j=13.6, k=12.62MASSQuery vizier around this object
117.9154.2125-21.3905B1=17.6, B2=15.8, I=15.0, R1=15.6, R2=15.3USNO-B1Query vizier around this object
118.5154.2127-21.3904h=14.7, j=15.5, k=14.42MASSQuery vizier around this object
120.2154.1895-21.3589B2=20.8, I=19.0, R1=20.3, R2=19.6USNO-B1Query vizier around this object
123.6154.1543-21.3635B2=21.2, R1=17.5USNO-B1Query vizier around this object
124.5154.1479-21.3692B2=21.4, R1=17.8, R2=19.7USNO-B1Query vizier around this object
124.8154.1596-21.4208R1=19.9, R2=19.7USNO-B1Query vizier around this object
124.8154.1997-21.3626h=16.0, j=16.6, k=15.72MASSQuery vizier around this object
125.1154.1417-21.3798B2=21.8, R1=16.6USNO-B1Query vizier around this object
125.6154.1482-21.4123h=14.3, j=15.1, k=14.12MASSQuery vizier around this object
125.9154.1482-21.4124B1=18.1, B2=15.2, I=14.5, R1=15.1, R2=14.6USNO-B1Query vizier around this object
127.2154.1810-21.3551B1=15.9, B2=15.8, I=14.1, R1=15.0, R2=14.7USNO-B1Query vizier around this object
127.4154.1810-21.3551h=13.3, j=13.6, k=13.22MASSQuery vizier around this object
128.9154.1529-21.3627B2=21.2, R1=17.3, R2=19.7USNO-B1Query vizier around this object
129.8154.1405-21.3790B1=20.7, R1=15.6USNO-B1Query vizier around this object
130.8154.1768-21.3540B1=19.0, R1=17.9USNO-B1Query vizier around this object
131.0154.1786-21.3539B1=17.6, R2=19.7USNO-B1Query vizier around this object
132.2154.1936-21.3569B2=21.9, R1=17.2USNO-B1Query vizier around this object
133.9154.2007-21.3601B2=21.5, R1=20.8, R2=19.7USNO-B1Query vizier around this object
135.5154.1562-21.3582B2=20.1, I=18.7, R1=19.4, R2=19.0USNO-B1Query vizier around this object
136.8154.1731-21.3525B1=18.3, B2=20.6USNO-B1Query vizier around this object
136.8154.2064-21.3637B1=18.1, R1=18.7, R2=19.4USNO-B1Query vizier around this object
136.9154.2054-21.3627h=16.4, j=16.8, k=15.42MASSQuery vizier around this object
137.0154.2055-21.3628B1=21.0, B2=20.4, I=18.1, R1=19.0, R2=18.9USNO-B1Query vizier around this object
137.4154.1379-21.4008h=15.3, j=16.0, k=14.72MASSQuery vizier around this object
137.5154.1379-21.4010B1=18.1, B2=16.8, I=15.8, R1=16.3, R2=15.8USNO-B1Query vizier around this object
137.9154.2067-21.3635B1=19.7, B2=20.4, R2=19.7USNO-B1Query vizier around this object
140.9154.1583-21.3554B1=18.0, R1=20.6USNO-B1Query vizier around this object
143.1154.1365-21.4021B1=20.1, B2=20.4, I=18.9, R1=18.9, R2=18.2USNO-B1Query vizier around this object
144.3154.1582-21.3544B1=16.6, R1=17.1USNO-B1Query vizier around this object
146.1154.1452-21.3628B1=18.1, B2=19.4, I=18.2, R1=18.5, R2=18.6USNO-B1Query vizier around this object
146.3154.2176-21.4060h=14.9, j=15.5, k=14.52MASSQuery vizier around this object
146.7154.2177-21.4060B2=20.6, I=17.1, R1=18.7, R2=18.9USNO-B1Query vizier around this object
147.2154.1409-21.3675B2=21.5, R1=18.3, R2=19.7USNO-B1Query vizier around this object
147.9154.2089-21.4190h=13.7, j=14.4, k=13.62MASSQuery vizier around this object
148.0154.2089-21.4190B1=19.4, B2=18.6, I=15.5, R1=16.9, R2=16.8USNO-B1Query vizier around this object
148.5154.1817-21.3493B2=20.5, R1=19.5, R2=19.7USNO-B1Query vizier around this object
148.6154.1681-21.3499B1=20.1, B2=19.4, I=18.5, R1=18.9, R2=18.8USNO-B1Query vizier around this object
149.4154.2203-21.4011B1=21.1, I=18.9, R2=19.7USNO-B1Query vizier around this object
150.0154.2182-21.3735h=15.9, j=16.8, k=15.52MASSQuery vizier around this object
151.7154.1328-21.3825B2=21.6, R2=19.7USNO-B1Query vizier around this object
152.3154.1831-21.3483B2=19.9, I=18.9, R1=19.8, R2=19.1USNO-B1Query vizier around this object
154.5154.1365-21.4102B2=20.7, R1=20.7, R2=19.7USNO-B1Query vizier around this object
157.9154.2242-21.3859h=14.0, j=14.6, k=13.92MASSQuery vizier around this object
157.9154.2242-21.3859B1=17.6, B2=17.4, I=15.4, R1=16.2, R2=15.8USNO-B1Query vizier around this object
157.9154.1385-21.3654B1=18.3, B2=21.0, R2=19.6USNO-B1Query vizier around this object
158.9154.1416-21.3612B1=21.0, R1=17.2USNO-B1Query vizier around this object
159.2154.1539-21.3518B2=21.3, R1=16.3USNO-B1Query vizier around this object
159.9154.1935-21.4321B1=20.2, B2=19.9, R1=19.8, R2=18.9USNO-B1Query vizier around this object
162.8154.1351-21.4127B1=19.6, B2=18.7, I=17.4, R1=17.7, R2=17.6USNO-B1Query vizier around this object
162.9154.1437-21.4230h=15.1, j=15.9, k=14.62MASSQuery vizier around this object
163.0154.1350-21.4127h=16.2, j=16.4, k=16.12MASSQuery vizier around this object
163.4154.1858-21.4350h=15.5, j=16.1, k=15.62MASSQuery vizier around this object
163.4154.1437-21.4232B1=16.9, B2=14.7, I=14.7, R1=15.1, R2=14.7USNO-B1Query vizier around this object
163.7154.1859-21.4351B1=20.3, B2=19.4, I=17.4, R1=18.1, R2=17.8USNO-B1Query vizier around this object
163.8154.2020-21.3510B1=17.7, R1=19.8USNO-B1Query vizier around this object
164.4154.1718-21.4357B1=21.3, I=18.8, R2=19.7USNO-B1Query vizier around this object
164.4154.2023-21.3510B1=18.0, R1=19.8USNO-B1Query vizier around this object
164.5154.1405-21.3601h=16.5, j=16.6, k=15.82MASSQuery vizier around this object
164.7154.1404-21.3601B2=22.0, I=18.3, R1=20.2, R2=19.6USNO-B1Query vizier around this object
164.7154.1357-21.3659B1=20.4, B2=19.1, I=17.7, R1=18.3, R2=18.3USNO-B1Query vizier around this object
165.6154.1424-21.4229B1=17.6, I=18.8, R1=15.2USNO-B1Query vizier around this object
165.7154.2140-21.4211B1=19.7, B2=21.4, R2=19.7USNO-B1Query vizier around this object
165.8154.1858-21.4357B1=21.3, I=19.1USNO-B1Query vizier around this object
168.6154.2173-21.3620B1=18.2, I=18.7, R1=12.1USNO-B1Query vizier around this object
169.3154.1282-21.3793B1=21.1, B2=20.6, I=18.9, R1=19.6, R2=19.4USNO-B1Query vizier around this object
169.4154.1268-21.3922B1=18.1, B2=21.6, R2=19.7USNO-B1Query vizier around this object
171.0154.1616-21.4355B1=21.2, R1=20.3USNO-B1Query vizier around this object
171.3154.1784-21.3427B2=20.8, I=18.2, R1=18.8, R2=18.6USNO-B1Query vizier around this object
172.0154.1266-21.3975B1=18.3, B2=17.8, I=15.9, R1=16.4, R2=16.4USNO-B1Query vizier around this object
172.1154.1265-21.3975h=14.4, j=15.0, k=14.42MASSQuery vizier around this object
173.3154.2106-21.3535B1=17.8, R1=19.3USNO-B1Query vizier around this object
174.1154.1378-21.4217h=15.1, j=15.7, k=14.62MASSQuery vizier around this object
174.3154.1377-21.4217B1=17.1, B2=15.1, I=14.4, R1=15.0, R2=15.0USNO-B1Query vizier around this object
175.3154.2117-21.3536B1=20.3, B2=19.6, I=18.4, R1=19.4, R2=18.9USNO-B1Query vizier around this object
176.1154.1446-21.4286B2=20.5, I=18.1, R1=19.3, R2=18.7USNO-B1Query vizier around this object
176.4154.1250-21.3853B1=20.9, B2=20.2, I=17.9, R1=18.7, R2=18.5USNO-B1Query vizier around this object
176.6154.1249-21.3853h=15.7, j=16.5, k=15.72MASSQuery vizier around this object
179.4154.1517-21.4341B1=21.2, B2=21.6, R1=21.0USNO-B1Query vizier around this object
179.4154.1332-21.3620B2=20.8, I=19.1, R1=13.4, R2=19.6USNO-B1Query vizier around this object
181.1154.1553-21.3444B2=21.1, R2=19.7USNO-B1Query vizier around this object
182.7154.1688-21.3402B1=20.8, B2=19.5, I=18.4, R1=18.9, R2=18.4USNO-B1Query vizier around this object
185.0154.1548-21.3434R1=20.3, R2=19.6USNO-B1Query vizier around this object
186.3154.2325-21.3840B1=19.6, B2=21.3, R2=19.7USNO-B1Query vizier around this object
187.4154.2249-21.4177B2=18.9, I=18.3, R1=18.9, R2=18.6USNO-B1Query vizier around this object
187.7154.2075-21.4342B1=20.8, B2=19.5, R1=19.9, R2=19.2USNO-B1Query vizier around this object
188.2154.1756-21.4426B2=20.9, R1=17.6, R2=19.7USNO-B1Query vizier around this object
188.3154.1266-21.3678B2=20.8, I=18.2, R1=17.1, R2=19.0USNO-B1Query vizier around this object
188.5154.1942-21.4402h=14.8, j=15.3, k=14.92MASSQuery vizier around this object
188.5154.2250-21.4180B1=19.6, R1=18.4, R2=19.7USNO-B1Query vizier around this object
188.6154.1942-21.4403B1=18.0, B2=17.8, I=16.1, R1=16.7, R2=16.6USNO-B1Query vizier around this object
188.7154.2227-21.3593I=19.0, R1=14.6, R2=19.7USNO-B1Query vizier around this object
188.9154.1267-21.3672h=16.0, j=16.5, k=15.42MASSQuery vizier around this object
189.4154.1972-21.4396B1=21.3, R1=16.9USNO-B1Query vizier around this object
189.7154.1888-21.3387B2=20.4, I=18.1, R1=18.8, R2=18.7USNO-B1Query vizier around this object
189.8154.1888-21.3387h=16.1, j=16.7, k=15.92MASSQuery vizier around this object
190.2154.2291-21.4118h=12.1, j=12.6, k=12.02MASSQuery vizier around this object
190.6154.2292-21.4119B1=15.3, B2=15.0, I=13.2, R1=14.0, R2=14.0USNO-B1Query vizier around this object
190.8154.2001-21.4389B1=20.9, R1=19.8USNO-B1Query vizier around this object
191.8154.1201-21.3927B2=21.0, I=18.2, R1=19.2, R2=18.8USNO-B1Query vizier around this object
191.9154.1201-21.3927h=16.3, j=16.7, k=15.32MASSQuery vizier around this object
192.7154.2322-21.3744B2=19.6, I=18.1, R1=18.8, R2=18.4USNO-B1Query vizier around this object
192.9154.1941-21.4416B2=21.6, R1=15.9, R2=19.7USNO-B1Query vizier around this object
193.3154.2260-21.3615B1=19.6, B2=18.8, I=18.0, R1=18.1, R2=18.0USNO-B1Query vizier around this object
193.5154.2260-21.3615h=16.9, j=16.8, k=15.82MASSQuery vizier around this object
194.9154.1661-21.3372B2=21.5, R1=20.4, R2=19.7USNO-B1Query vizier around this object
195.9154.1240-21.3681B1=20.6, B2=19.0, I=17.8, R1=18.8, R2=18.1USNO-B1Query vizier around this object
196.2154.1651-21.4436B2=21.2, I=18.1, R1=19.2, R2=18.7USNO-B1Query vizier around this object
196.5154.1725-21.4447B1=21.3, B2=21.1, I=18.6, R2=19.2USNO-B1Query vizier around this object
197.7154.1201-21.3769B1=18.7, B2=20.9, R1=19.9, R2=19.4USNO-B1Query vizier around this object
198.8154.1212-21.3725B1=18.5, B2=21.6, R1=17.2USNO-B1Query vizier around this object
199.6154.1781-21.3349B2=21.1, R1=19.9, R2=19.7USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

* 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.