Time of firing: 1505 MST
    Agency: University of Michigan for SCEL
    Altitude: 54.2 miles

UPPER AIR INSTRUMENTS

    Density-pressure-temperature: Shock wave angle measurement for temperature.
        Two needle probes and two ram probes. ram and cone surface pressure gages
        for temperature.
    Composition: Two evacuated air-sampling bottles with associated timer and
        pyrotechnic opening and sealing devices
    Solar radiation: Thermoluminescent detectors. Soft x-ray densiometers (NRL).
    Biological: Effect of cosmic rays on genes and chromosomes (NRL)

DATA RECOVERY INSTRUMENTS

    Telemeter: NRL type AN/DKT-2
    Airborne recorder: Cook Research Laboratories 13-channel FM magnetic tape
        recorder in parallel with telemeter
    Physical recovery: Warhead plus control compartment separated by detonation of
        eight one-half pound blocks of TNT

BALLISTIC INSTRUMENTS

    Firing Range
        Theodolites: Two Mitchell and seven Askania stations
        Cameras: Two ballistic and three Bowen-Knapp stations
        Telescopes: Four stations
        Radar: Two SCR-584 S-band units

    Airborne
        Radio Cutoff: AN/DRW-37
        Aspect: Three Giannini heliograph cameras
        Other: Missile performance instruments (G. E.)

ROCKET INFORMATION

    Payload weight: 2873 lb
    Unfueled rocket weight: 9530 lb
    Gross weight at takeoff: 28,973 lb

ROCKET PERFORMANCE

    Program angle: Seven degrees north from vertical
    Time to burnout: 62.66 sec
    Velocity at booster burnout: 3450 ft/sec (vertical)
    Altitude at burnout: 101,200 ft
    Time to zenith: 170.16 sec
    Altitude at zenith: 286,200 ft
    Time to tail blowoff: 248.05 sec
    Altitude at tail blowoff: 194,000 ft
    Impact Coordinates: Warhead - 20.9 mi. north, 0.32 mi. east of launcher; midbody -
        19.38 mi. north, 0.32 mi. east of launcher

BALLISTIC DATA

    Theodolites: Askania trajectory data form 0 to 357.16 sec
    Telescopes: Preliminary flight data from 25.3 to 328.2 sec

DATA RECOVERY

    Telemeter: Data recorded throughout the sensitivity ranges of both probe Pirani
        gages and ram and side Pirani gages
    Airborne recorder: Although magnetic tape recorder smashed on impact, casette
        containing flight tape recovered in good condition. Since a good-quality telemeter
        record was obtained, it, rather than the recorder record, was used for data
        reduction.
    Physical recovery: Two air-sampling bottles badly smashed. Three heliographs in
        excellent condition. Magnetic tape recorder casette and tape. Two thermo-
        luminescent detectors. Three of four soft x-ray densitometers. Four seed and
        bacteria containers.

EXPERIMENTAL DATA

    Both air-sampling bottles opened on impact - no samples. Excellent ram and side-
        cone pressure measurements made throughout range of ram and side Pirani
        gages. However, instrumental errors found to be too large ot five calculation
        of ambient temperature with useful accuracy. Five shock-wave signals in the
        vicinity of 100,00 ft were recorded. These were reduced to temperature using
        Askania altitude and velocity data. Results show good agreement with balloon
        temperature measurements taken at the same time. Thus the shock angle method
        was demonstrated as feasible for making instantaneous, independent temperature
        measurements.

COMMENTS

    Rocket modifications: Four Pirani gages mounted on extension rods were placed at
        90 degree intervals eight in. from the longitudinal axis of a 40-degree right
        circular cone. The rods were driven through an excursion of eight in. with a
        period of about three seconds in a direction parallel to the cone axis so as to
        intercept the shock wave.
            An opening for the ram-pressure Pirani gage was placed in the tip of the
        cone and four openings for cone side-pressure gages were placed at 90-degree
        intervals on the cone surface.
            The 40-degree cone ws filled with ice water to keep the Pirani gages at
        constant temperature.
    Rocket performance: A disturbance in the jet was noted at 43.4 sec, and from that
        time until command burnout there was intermittent burning of fuel. Hence peak
altitude was appreciably less than expected, and because some fuel remained in
        the tanks, the midbody exploded on impact.