... Standard magnitudes can only be computed for the U, B and V filters and hence the only standard colours that can be calculated are U-B, B-V and U-V. An important point to note, is that these standard colours can be computed using the following instrumental colours - U-B, B-V, U-V, (UVW1-U), (UVW1-B), (UVW1-V), (UVW2-B) and (UVW2-V). ... The program loops through these colours and if the relevant instrumental magnitudes are present computes the standard magnitudes and standard colour. ...

... Questions: . ... Find some information on the design and potential of the Advanced Gas Turbine. ... Find some information on the frequency and amount of oil spills which occur in the world's oceans in a given year. ... We don't care how many you get correct. However, of the questions there, explain which one had an answer that most surprised you and how should that answer affect our future policies? ... Find some information about the history of Dam failures in the US and Canada since 1900. ...

... The next step after loading is to apply a number of ``fixes'' that are important for 3-mm data. ... By default atfix applies the ``standard'' gain/elevation model for the antennas. ... As mentioned above, the ATCA uses the chopper wheel method to measure an above atmosphere system temperature. ... On the night of an ATCA reconfiguration, a solution for the antenna positions is derived. ... Task atfix corrects the data for an improved antenna location solution via the dantpos parameter. ... ATFIX . ...

Observatory Support . ... The science header keyword ORIENTAT is populated by adding the angle between the HST V3 axis and the detector Y axis to what we will call the "commanded roll" (North to V3 through East). The V3-detY angles that were relevant at a given observation's epoch are given as a header keyword (beta_2) in the Observation Log files (aka jitter files). ... The commanded roll and the jitter file's ROLL_AVG should agree to within 0.05 degrees, usually better than 0.02deg. ...