[vsnet-grb 297252] AMON IceCube EHE Notice type is available in GCN

Sat Jul 16 05:31:00 JST 2016

TO:  All GCN Notice recipients
RE:  AMON IceCube EHE Notice type is available
DT:  15 July 2016

INTRODUCTION:
The GCN system has been modified to incorporate the distribution
of the AMON_ICECUBE_EHE (Extreme High Energy) Notice type. 
The ICECUBE_EHE event is due to a single extemely high energy neutrino.
Like all the other sources of transient information within the GCN system,
users can elect to receive this AMON_ICECUBE_EHE Notice type.

OCCURRENCE RATE:
There will be about 4-6 AMON_ICECUBE_EHE Notices per year.

TIME DELAY:
The time delays for this notice type will range from 0.5 to 3 minutes
after the neutrino interacts in the IceCube detector.

LOCATION ERROR:
The location uncertainties are in the 0.1-0.4 deg range (radius, stat+sys, 50% containment).
The uncertainty in the location is nearly flat across neutrino energies
for this stream of through going neutrino tracks. This uncertainty represents
a quality of the online position reconstruction, and it is computed in
real time for each alert.

NOTICE TYPE, CONTENT, and PURPOSE:
The AMON_ICECUBE_EHE is the second notice type to be released (the AMON_ICECUBE_HESE was the first).
The AMON_ICECUBE_EHE is the result of IceCube detecting a single high-energy neutrino (>1 PeV)
in their detector with a good track-like deposition (ie not cascade-like).
These can be caused by Supernova, GRBs, other astrophysical transients, and sometimes background.
The Notices contain the date, time, and trigger number, the probability
of an event being astrophysical in origin, and false_positive probability and
the p-value probability.  It contains the RA,Dec location
of the direction that this single high-energy neutrino came from.

ACTION ITEM:
If, after reviewing the information below, you want to receive
these AMON_ICECUBE_EHE notices, please send me a request to have them enabled.
You can do this by forwarding this email (which has your sitename identifier)
to sbarthel at milkyway.gsfc.nasa.gov .
OR
You can go to  http://gcn.gsfc.nasa.gov/gcn/config_builder.html
and select "#2 Modify an existing config" (and type in your sitename).
You can also take this opportunity to make other changes to your configuration.

ARCHIVE STORAGE:
The GCN/AMON_ICECUBE_EHE Notices are archived within the GCN website
in the Table of AMON_ICECUBE_EHE Notices:
    http://gcn.gsfc.nasa.gov/gcn/amon_ehe_events.html

MORE INFORMATION:
Can be found at:  http://gcn.gsfc.nasa.gov/gcn/amon.html

NOTICE EXAMPLE:
Here is an example of a full-format email AMON ICECUBE EHE Notice:

    TITLE:            GCN/AMON NOTICE
    NOTICE_DATE:      Sun 01 Jul 16 19:56:28 UT
    NOTICE_TYPE:      AMON ICECUBE EHE
    RUN_NUM:          128223
    EVENT_NUM:        26476564
    SRC_RA:           128.4989d {+08h 34m 00s} (J2000),
                      128.6472d {+08h 34m 35s} (current),
                      128.0502d {+08h 32m 12s} (1950)
    SRC_DEC:          -41.3631d {-41d 21' 46"} (J2000),
                      -41.4205d {-41d 25' 13"} (current),
                      -41.1906d {-41d 11' 25"} (1950)
    SRC_ERROR:        32.98 [arcmin radius, stat+sys, 50% containment]
    DISCOVERY_DATE:   17579 TJD;   192 DOY;   16/07/01 (yy/mm/dd)
    DISCOVERY_TIME:   71753 SOD {19:55:53.00} UT
    REVISION:         0
    N_EVENTS:         1 [number of neutrinos]
    STREAM:           2
    DELTA_T:          0.0000 [sec]
    SIGMA_T:          0.0000 [sec]
    SIGNALNESS:       2.4519e-04 [dn]
    SUN_POSTN:        110.54d {+07h 22m 10s}  +22.09d {+22d 05' 38"}
    SUN_DIST:          65.70 [deg]   Sun_angle= -1.2 [hr] (East of Sun)
    MOON_POSTN:       186.11d {+12h 24m 27s}   -0.56d {-00d 33' 45"}   
    MOON_DIST:         65.81 [deg]
    GAL_COORDS:       260.35, -0.70 [deg] galactic lon,lat of the event
    ECL_COORDS:       149.42,-57.13 [deg] ecliptic lon,lat of the event
    COMMENTS:         AMON_ICECUBE_EHE.

The socket packets (Type=169) contents can be found at:
http://gcn.gsfc.nasa.gov/gcn/sock_pkt_def_doc.html

REMINDER OF RECENT ADDITIONS TO GCN:
In case you have missed them, here is a brief list of the most recent additions
to the GCN system.  You might consider signing up for these Notice types as well.
The full announcements/descriptions for each of these can be found at:
http://gcn.gsfc.nasa.gov/gcn/whats_new.html
AMON_ICECUBE_HESE  (Apr 2016)          // ICECUBE Extremely High Energy Starting Events
CALET_LC  (Mar 2016)                   // The Flight- & Ground-produced CALET-GBM lightcurves 
SNEWS  (Dec 2015)                      // SNEWS neutrino coincidences and singles from supernovae
2nd VOEvent Ver 2.0 server (Nov 2015)  // A redundant Ver 2.0 VOevent server added
FERMI_GBM LOCATION MAPS (Apr 2014)     // GBM Location_Map URL available
FERMI_GBM_LIGHTCURVE (Apr 2014)        // GBM Lightcurve URL available
FERMI_LAT_OFFLINE (Feb 2014)           // LAT detections found in off-line ground processing
SUZAKU_LIGHTCURVE (Nov 2013)           // Lightcurves from Suzaku-WAM
IPN_RAW resumes (Aug 2012)             // IPN Team resumes producing the IPN_RAW notices
SWIFT_BAT_SUB_SUB_THRESHOLD (May 2012) // Swift-BAT Triggers with very low significance; use for temporal coincidences
VOEvent Direct Server (Mar 2012)       // Added 3 VOEvent servers to allow for direct distribution of VOEvents
FERMI_LAT_MON/_TRANS (Aug 2011)        // Flare-ups from known sources monitored by Fermi-LAT & non-GRB transients
FERMI_LAT_GND (Aug 2011)               // Automated ground processing to get GRB positions

Sincerely,
Scott

Scott Barthelmy                      NASA-GSFC, Code 661, Greenbelt, MD
20771
PHONE:  301-286-3106                 (office)       CELL:   301-346-3733
FAX:    301-286-1684                 (1st choice,  -1682 2nd choice)
EMAIL:  scott at lheamail.gsfc.nasa.gov
PAGER:  3013463733 at cingularme.com
WEB:    http://gcn.gsfc.nasa.gov/gcn

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DATES      25jun05   23oct07
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