In 2007 – 2008, NRL with NOFS used NPOI to obtain first-ever closure phase image precursors of satellites orbiting in geostationary orbit.

The Navy Precision Optical Interferometer ( NPOI ) is a major astronomical interferometer ( world's largest baselines ), operated by the Naval Observatory Flagstaff Station ( NOFS ) in collaboration with the Naval Research Laboratory ( NRL ) and Lowell Observatory.

In 2009 NOFS began final plans for NPOI to incorporate four aperture optical-infrared telescopes into the array, which were accepted by the Navy in 2010, and assigned to the Naval Observatory Flagstaff Station.

The OAP commissioned the chief scientist and director of the NPOI to effect the science and operations for the Panel ; this manager is a senior member of the NOFS staff and reports to the NOFS Director.

NPOI is a successful example of the venerable Michelson Interferometer design, with the principle science managed by NOFS.

NOFS funds all principle operations, and from this contracts Lowell Observatory to maintain the Anderson Mesa facility and make the observations for NOFS to conduct the primary astrometry.

Lowell Observatory and NRL join in the scientific efforts through their fractions of time to use the interferometer ; science time is 85 % Navy ( NOFS and NRL ); and 15 % Lowell.

Installation plans for the 1. 8m Array were developed in 2010-2012 by the scientific and engineering staffs at NOFS, based on the funded science performed by NOFS and NRL.

NOFS operates and leads the science for the Navy Precision Optical Interferometer, as noted, in collaboration with Lowell Observatory and the Naval Research Laboratory at Anderson Mesa.

Today, the observatory's primary observational work is done at the U. S. Navy's higher elevation United States Naval Observatory, Flagstaff Station ( NOFS ) near Flagstaff, Arizona.

The final dark sky site chosen was Flagstaff, Arizona, and so the 40-inch telescope was moved to that location, beginning operations at the new Navy command, now called the Naval Observatory Flagstaff Station ( NOFS ).

Those operations commenced in 1955, and within a decade, the Navy's largest telescope, the 61-inch " Kaj Strand Astrometric Reflector " was built, seeing light at NOFS in 1964.

In 2012 NOFS, with support from USNO, CNMOC and the Chief of Naval Operations ' Oceanographer staff, began developing funding and programming plans in order to install the array.

USNO continues to maintain its dark-sky observatory, NOFS, near Flagstaff, Arizona, which also now oversees the Navy Precision Optical Interferometer.

NOFS opens to the public one weekend annually, in the autumn.

NOFS endeavors to facilitate construction starts in the 2012-2015 timeframe.

In the field of the social sciences a considerable fund of tested knowledge has been accumulated that can be used to good advantage.

However, as a practicing historian, he, himself, has left few clues to the amount of professional scholarship that he used when writing history.

Patchen has almost never used strict poetic forms ; ;

A driver of a dairy truck, who begins work at 1 a.m. finishes before breakfast, then goes out and grows a garden, and who has used the cannery to save and feed a family of five, asked, `` What in the world will we do ''??

Gloria ( surname: Ziraldo ), circa 30, who was born in Italy and once did `` chorus work '' in Toronto, has been around longer than most of the others, wistfully remembers the old days when `` we used to get the seamen from the ships, you know, with big turtleneck sweaters and handkerchiefs and all.

An acoustical interferometer has been constructed and used, with helium gas as the thermometric fluid, to measure temperatures near 4.2 and 2.1 Af.

Even if the electric power fails after an attack, any time that the heater has been used will make the shelter that much more comfortable.

If your state has no provisions for the numbering of pleasure boats, you must apply for a number from the U.S. Coast Guard for any kind of boat with mechanical propulsion rated at more than 10 horsepower before it can be used on Federal waterways.

`` Selective selling '' -- concentrating sales on the larger accounts -- has been used effectively by some manufacturers.

Harris has indicated that two devices, the Launder-Ometer and Terg-O-Tometer are most widely used for rapid detergent testing, and he has listed the commercially available standard soiled fabrics.

Oliver has recently used the second-level approach with the largest snakes, and has come to these conclusions: the anaconda reaches a length of at least 37 feet, the reticulate python 33, the African rock python 25, the amethystine python at least 22, the Indian python 20, and the boa constrictor 18-1/2.

In some programs, treatment is concentrated over a short period of time, while in others, after the initial contact is established, flexible spacing of interviews has been experimentally used with apparent success.

This subject, who has been undergoing psychoanalytic psychotherapy for five years, did not give a positive Kohnstamm reaction under any of the four standardized conditions used in this experiment while sober.

While the U. S. Department of Labor has a program of projecting industry and occupational employment trends and publishing current outlook statements, there is little tangible evidence that these projections have been used extensively in local curriculum planning.

The consuming public has used up a good part of these liquid assets, or they have been drained by the rising price level, and we have apparently gotten to the end of the line in making consumer or home mortgage terms easier.

A careful student has suggested that `` In any new revision ( of the Judicial Code ) the legislators would do well to remember that the allocation of power to the federal courts should be limited to those matters in which their expertise in federal law might be used, leaving to the state judiciaries the primary obligation of pronouncing state law ''.

Each teacher has in his classroom a metal file, equipped with a lock, which is used to store cumulative record folders.

Moreover, whereas in Interstate Commerce Commission parlance `` variable cost '' means a cost deemed to vary in direct proportion to changes in rate of output, in the type of analysis now under review `` variable cost '' has been used more broadly, so as to cover costs which, while a function of some one variable ( such as output of energy, or number of customers ), are not necessarily a linear function.

Once he has been identified, however, a new melody is used to accompany his narrative, a bleak motif with barren octaves creating a rather ancient effect:

`` Disaffiliation '', by the way, is the term used by the critic and poet, Lawrence Lipton, who has written several articles on this subject, the first of which, in The Nation, quoted as Epigraph: `` We disaffiliate.

Accepted crystallographic symbolism has been used ; ;

Merchant has found that the same basic relationships which describe the geometry and force systems in the case of the cutting mechanism can also be applied to the discontinuous chip formation provided the proper values of instantaneous shear angle and instantaneous chip thickness or cross-sectional area are used.

This country has not used them, and I hope that we never will be compelled to use them.

The NPOI has been continuously upgraded and expanded since then, and has been operational for a decade.

To date NPOI has produced the highest resolution optical images of any astronomical instrument, though this may change when the CHARA array and Magdalena Ridge Observatory Interferometer begin optical-band operations.

The first astronomical object imaged ( resolved ) by NPOI was Mizar, and since, a significant amount of astrometry, reference tie frame, rapid rotator star, and Be stellar disk study has been performed.