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    New GRB 02/18/10

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    mountaingirl/NM

    Posts : 58
    Join date : 2010-02-17

    New GRB 02/18/10

    Post  mountaingirl/NM on Fri 19 Feb 2010, 5:00 pm

    affraid

    http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3/10431.gcn3

    TITLE: GCN CIRCULAR
    NUMBER: 10431
    SUBJECT: GRB 100218A : Fermi GBM detection
    DATE: 10/02/19 16:48:55 GMT
    FROM: David Tierney at UCD <david.tierney@ucd.ie>

    Dave Tierney (UCD)
    reports on behalf of the Fermi GBM Team:

    "At 04:38:45.93 UT on 18 February 2010, the Fermi Gamma-Ray Burst Monitor
    triggered and located GRB 100218A (trigger 288160727 / 100218194).

    The on-ground calculated location, using the GBM trigger
    data, is RA = 206.6, DEC = -11.9 (J2000 degrees,
    equivalent to 13 h 46 m, -11 d 54 '), with an uncertainty
    of 2.2 degrees (radius, 1-sigma containment,
    statistical only; there is additionally a systematic
    error which is currently estimated to be 2 to 3 degrees).
    The angle from the Fermi LAT boresight is 37 degrees.

    The GBM light curve consists of a single pulse
    with a duration (T90) of about 30.8 +/- 1.6 s (8-1000 keV).
    The time-averaged spectrum from T0-4.1 s to T0+28.67 s
    is best fit by a power law function with an exponential
    high energy cutoff. The power law index is -0.50 (+0.28/-0.25) and
    the cutoff energy, parameterized as Epeak, is 184.20 (+52.40/-29.70) keV
    (cstat 845 for 485 d.o.f.).

    The event fluence (8-1000 keV) in this time interval is
    (2.58 +/- 0.21)E-6 erg/cm^2. The 1-sec peak photon flux measured
    starting from T0+4.7 s in the 8-1000 keV band
    is 1.4 +/- 0.2 ph/s/cm^2.

    A Band function fits the spectrum equally well (cstat 840 for 484 d.o.f.)
    with Epeak= 131.60 (+32.70/-21.70) keV, alpha = -0.14 (+0.41/-0.33)
    and beta = -2.00 (+0.18/-0.30).


    The spectral analysis results presented above are preliminary;
    final results will be published in the GBM GRB Catalog."
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    Polly, AZ

    Posts : 241
    Join date : 2010-02-17
    Location : Sedona, AZ

    Thank You Mountaingirl!

    Post  Polly, AZ on Sat 20 Feb 2010, 7:27 am

    mountaingirl/NM wrote:affraid

    http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3/10431.gcn3

    TITLE: GCN CIRCULAR
    NUMBER: 10431
    SUBJECT: GRB 100218A : Fermi GBM detection
    DATE: 10/02/19 16:48:55 GMT
    FROM: David Tierney at UCD <david.tierney@ucd.ie>

    Dave Tierney (UCD)
    reports on behalf of the Fermi GBM Team:

    "At 04:38:45.93 UT on 18 February 2010, the Fermi Gamma-Ray Burst Monitor
    triggered and located GRB 100218A (trigger 288160727 / 100218194).

    The on-ground calculated location, using the GBM trigger
    data, is RA = 206.6, DEC = -11.9 (J2000 degrees,
    equivalent to 13 h 46 m, -11 d 54 '), with an uncertainty
    of 2.2 degrees (radius, 1-sigma containment,
    statistical only; there is additionally a systematic
    error which is currently estimated to be 2 to 3 degrees).
    The angle from the Fermi LAT boresight is 37 degrees.

    The GBM light curve consists of a single pulse
    with a duration (T90) of about 30.8 +/- 1.6 s (8-1000 keV).
    The time-averaged spectrum from T0-4.1 s to T0+28.67 s
    is best fit by a power law function with an exponential
    high energy cutoff. The power law index is -0.50 (+0.28/-0.25) and
    the cutoff energy, parameterized as Epeak, is 184.20 (+52.40/-29.70) keV
    (cstat 845 for 485 d.o.f.).

    The event fluence (8-1000 keV) in this time interval is
    (2.58 +/- 0.21)E-6 erg/cm^2. The 1-sec peak photon flux measured
    starting from T0+4.7 s in the 8-1000 keV band
    is 1.4 +/- 0.2 ph/s/cm^2.

    A Band function fits the spectrum equally well (cstat 840 for 484 d.o.f.)
    with Epeak= 131.60 (+32.70/-21.70) keV, alpha = -0.14 (+0.41/-0.33)
    and beta = -2.00 (+0.18/-0.30).


    The spectral analysis results presented above are preliminary;
    final results will be published in the GBM GRB Catalog."

    I miss the solar and GRB updates. I can check them all out myself, but it was just so easy to have it all on the EB board. I htink that maybe we were spoiled and maybe didn't appreciate what we had.
    avatar
    TrishNrthrdgCA

    Posts : 59
    Join date : 2010-02-18
    Location : Northridge, CA

    Hyder Flare

    Post  TrishNrthrdgCA on Mon 22 Feb 2010, 3:11 am

    Hey MountainGirl,

    Check out the Hyder flare on SpaceWeather today ... plus the funny post about space pee!

    Trish

    PS: Cute photo btw!!http://www.spaceweather.com/

    Joy in Hawai'i

    Posts : 6
    Join date : 2010-02-19

    Re: New GRB 02/18/10

    Post  Joy in Hawai'i on Mon 22 Feb 2010, 5:07 am

    "I miss the solar and GRB updates. I can check them all out myself, but it was just so easy to have it all on the EB board. I think that maybe we were spoiled and maybe didn't appreciate what we had."

    Sorry Polly, but I don't think it was lack of appreciation. I think folks are gettin' outta Dodge. Ryan tended this flock as best he could for as long as he could. By "jumping a groove" he may mean moving across the Continental Divide, moving to Canada, or just moving his life in a different direction. All this fancy stuff with new little compartments, scoring the number of posts, and the cute little faces (I like 'em. too!) serve only to distract and increase the distance between us all.

    The first person who picks up the Talk Shop software will have me back as regular! Of course that MAY guarantee that nobody will! Shocked Ryan didn't see the need for much change when he reconstituted Syzygy and JOB didn't express any displeasure. Why can't somebody else do the same? Is the Talk Shop software no longer available? We're scattered over four or five forums and things are spread out everywhere. I'm getting used to this one but I have some reservations.... Suspect

    I don't mean to sound unappreciative of others work, and any port in a storm drunken , but the more we are distracted with bells and whistles, the more entangled we become in the web. The harder they make it for us to communicate and find stuff, the more vulnerable we become to "my way or the highway" and being divided not against each other but FROM each other. How many folks are just dropping out all together?

    I really noticed it when Ryan added the Science board. It went nowhere! They locked themselves up just like the Environmental board. You get too specialized and communication STOPS!

    Maybe it has something to do with FREE boards. I can't fault anyone for that! I don't have diddly to pitch in, myself. This is not a gripe with anyone here, just a red flag that we are being watered down, will ye or nil ye, we ARE being watered down.... affraid

    Peace and Starlight,
    Joy
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    April/NC

    Posts : 10
    Join date : 2010-02-17

    Re: New GRB 02/18/10

    Post  April/NC on Tue 23 Feb 2010, 12:23 am

    MG!! So nice to SEE you!! =)

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