Re: Herschel/Planck

Date: Fri May 15 2009 - 18:36:52 UTC

  • Next message: Marco Langbroek: "SATOBS ML (4353), 15 May 2009: STSS-ATRR r"

    I should add that a V filter was used for imaging, and the photometry of the 
    three objects yielded the following mean V magnitudes and standard 
    deviations in brightness for the objects on 2009 May 15.63 when they were at 
    a range of 226,000 km from the observatory at Siding Spring, Australia:
    Herschel:  15.16 +/- 0.22
    Planck:  16.54 +/- 0.55
    SYLDA:  17.02 +/- 0.03
    Absolute calibration was good to +/-0.03 mag.
    Richard Miles,
    ----- Original Message ----- 
    From: "Gerhard HOLTKAMP" <>
    To: <>
    Cc: "Jonathan McDowell" <>
    Sent: Friday, May 15, 2009 5:15 PM
    Subject: Re: Herschel/Planck
    On Friday 15 May 2009 14:53, Jonathan McDowell wrote:
    > If anyone does make observations of Herschel/Planck: Arianespace
    > tells me they don't have detailed orbits for the four objects
    > but that in order of apogee from lowest to highest they are
    > Planck, Herschel, SYLDA and ESC-A.
    > It's not clear what the fate of the last two will be, so it would
    > be great if anyone got measurements...
    The ESA Optical Ground Station in Tenerife has taken a series of pictures
    showing these objects. See the article
    I don't know whether anyone has bothered to process them astrometrically 
    regard to SYLDA and ESC-A.
    Gerhard HOLTKAMP
    Darmstadt, Germany
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:

    This archive was generated by hypermail 2b29 : Fri May 15 2009 - 18:37:36 UTC