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SPER data|
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Swift Trigger: 643949

Presumed name: V404 Cyg

Back to trigger list.

BAT 20h 24m 04.80s, +33° 51′ 00.0″
position:(306.020, 33.850 ± 180″)
XRT 20h 24m 03.96s, +33° 52′ 01.9″
position:(306.0165, 33.8672 ± 2.3″)
UVOT No position available.
Galactic NHI:6.66×100 cm-2
Galactic E(B-V):2.354 mag
Best RA:20h 24m 03.96s= 306.0165 d
Best Dec:+33° 52′ 01.9″= 33.8672 d
Gal Lat:-2.09
Gal Long:73.12
Sun angle:110.05°, 9.2 hr West

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

UVOT white image

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UVOT white image

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UVOT white image

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Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

Image of the SPER data

There are 5 SPER messages, and 1 objects have been found

See the SPER page for details of how this position was produced.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)RA DecDate reportedSource MiscQuery
1.0′′306.0162033.86730GCN #17929Swift trigger 643949 is V404 CygVizier logo
1.8′′306.0159133.86718ATEL #7742 e-EVN observations of V404 Cyg in outburst Vizier logo
3.9′′306.0154033.86660GCN #17946Swift triggers again on V404 CygVizier logo
6.2′′306.0180433.86606GCN #18777Trigger 668877: Swift detection of V 404 CygVizier logo
9.7′′306.0163033.86450GCN #17944Swift Trigger 644520 is V404 CygVizier logo
24.8′′306.0083333.86833GCN #17963Trigger 646721: Swift detection of V 404 CygVizier logo
33.2′′306.0240033.87400GCN #18716Trigger 668097: Swift detection of V 404 CygVizier logo
51.0′′306.0000033.86361GCN #17945Swift Trigger 644596 is V404 CygVizier logo
51.3′′306.0196133.88123ATEL #8509 T100 Observations of V404 Cyg during quiescence Vizier logo
52.4′′306.0020033.85900GCN #17949Trigger 645176: Swift detection of V404 CygVizier logo
61.9′′306.0166733.85000GCN #18778Trigger 668879: Swift detection of V 404 Cyg againVizier logo

There are 28 matches in total. See the full table for details.

Catalogue Searches. Searched 3.33′ around XRT position

Click on the distance to view the full details (not available for sources from the SSS catalogue). Click on the column headers to sort the table on that column (click again to invert sort order).

SIMBAD

RA*Dec*SIMBAD name Query
1.6306.016033.8673V* V404 CygB=14.20, H=12.684, J=13.575, K=12.321, R=16.800, U=14.50, V=12.7Query vizier around this object
139.4306.062733.8617IRAS 20222+3341Query vizier around this object

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query
1.6306.016033.86720.160591214598 +/- 0.00403296423041CHANDRAQuery vizier around this object
1.7306.015933.86720.0343876821153 +/- 0.000798587227605CHANDRAQuery vizier around this object
1.7306.015933.86730.154561 +/- 0.0023714XMM-NEWTONQuery vizier around this object
2.3306.015833.8675 +/- UNKNOWNQuery vizier around this object
2.4306.015833.8676 +/- UNKNOWNQuery vizier around this object
2.6306.015633.86720.0241999998688698 +/- 0.0012540000025183ROSATQuery vizier around this object
3.1306.015833.86660.0248000007122755 +/- 0.00130000000353903ROSATQuery vizier around this object
3.5306.015533.8677 +/- UNKNOWNQuery vizier around this object
4.8306.015433.86820.005687374 +/- 0.00060658101ROSATQuery vizier around this object
5.3306.015433.86830.00519799999892712 +/- 0.000661000027321279ROSATQuery vizier around this object

Queried the X-ray MASTER catalogue.

There are 27 X-ray sources within the position error. The full list is here.

* RA/Dec in equinox J2000

1Energy band for count-rate is mission specific.

Galaxies

RA*Dec*Redshift CatalogueQuery
1.6306.015833.8672NEDQuery vizier around this object
1.9306.015933.8672B1=19.0, B2=16.7, I=14.1, R1=16.3, R2=16.8USNO-B1Query vizier around this object
5.3306.015733.8659B1=21.0, R1=16.6, R2=17.4USNO-B1Query vizier around this object
8.5306.018533.8689B2=20.6, R1=17.7, R2=18.6USNO-B1Query vizier around this object
13.5306.015033.8707B2=20.4, I=15.6, R1=16.7, R2=17.3USNO-B1Query vizier around this object
19.3306.021233.8636B2=20.2, I=17.0, R1=17.7, R2=18.4USNO-B1Query vizier around this object
19.7306.022533.8649B1=19.0, B2=19.8, I=15.7, R1=16.5, R2=17.1USNO-B1Query vizier around this object
20.3306.010233.8692B1=20.7, B2=20.3, I=15.1, R1=16.4, R2=16.8USNO-B1Query vizier around this object
24.0306.012933.8612B1=20.1, B2=20.6, I=15.8, R1=16.9, R2=17.6USNO-B1Query vizier around this object
26.8306.023933.8714B2=20.6, I=15.7, R1=17.0, R2=17.4USNO-B1Query vizier around this object

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

There are 311 galaxies within the position error. The full list is here.

* 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

Stars

RA*Dec* CatalogueQuery
1.7306.015933.8673h=12.7, j=13.6, k=12.32MASSQuery vizier around this object
6.1306.015733.8656h=12.2, j=13.3, k=11.82MASSQuery vizier around this object
8.3306.018533.8688h=15.2, j=15.9, k=15.12MASSQuery vizier around this object
13.2306.015033.8706h=12.5, j=13.4, k=12.12MASSQuery vizier around this object
19.6306.021233.8634h=15.0, j=15.7, k=14.82MASSQuery vizier around this object
19.9306.022533.8649h=13.6, j=14.2, k=13.42MASSQuery vizier around this object
20.1306.010233.8691h=12.0, j=13.0, k=11.62MASSQuery vizier around this object
24.2306.012933.8612h=12.8, j=13.8, k=12.52MASSQuery vizier around this object
25.3306.009333.8636h=15.9, j=17.0, k=15.12MASSQuery vizier around this object
26.7306.023933.8713h=13.2, j=14.0, k=12.82MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 716 stars within the position error. The full list is here.

* 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.