LD One Lunar Distance (LD) is approximately 384,000 kilometers (see glossary for definition). au One Astronomical Unit (au) is approximately 150 million kilometers (see glossary for definition). 'n/a' means that a frequency estimate is not available. Rarity A measure of how infrequent the Earth close approach is for asteroids of the same size and larger: 0 means an average frequency of 100 per year, i.e., roughly every few days or less, 1 corresponds to roughly once a month, 2 to roughly once a year, 3 to roughly once a decade, etc. Diameter Diameter value when known or a range (min - max) estimated using the asteroid's absolute magnitude (H) and limiting albedos of 0.25 and 0.05. H (mag) Asteroid absolute magnitude (in general, smaller H implies larger asteroid diameter). This can take some practice, so if you miss the first time around, just spin the dial. V infinity ( km/s) Object velocity relative to a massless Earth at close-approach. Twist the dial counterclockwise to the last number and open the safe. This is accomplished by rotating the dial, at minimum, three times past the. V relative ( km/s) Object velocity relative to Earth at close-approach. You should feel a click and can now open the safe. The minimum possible distance is based on the 3-sigma Earth target-plane error ellipse. CA Distance Minimum ( au) The minimum possible close-approach distance (Earth center to NEO center), in astronomical units. CA Distance Nominal ( au) The most likely (Nominal) close-approach distance (Earth center to NEO center), in astronomical units. View CA Open the close-approach viewer and render the high-precision trajectory during the close approach. Insert the key in the silver lock, which is located under the lid in the middle of the safe. The safes can be bulky and a little heavy. Place your Sentry safe on a sturdy surface.
What time does sentry safe open how to#
The 3-sigma uncertainty in the time is given in the +/- column in days_hours:minutes format (for example, "2_15:23" is 2 days, 15 hours, 23 minutes "< 00:01" is less than 1 minute). Moreover, how do you open a Sentry safe with a key How to Open a Sentry Safe With a Key. All Products Water and Fireproof Safes Security. Discount applies to items shipped within the contiguous United States only. "Nominal Date" is given to appropriate precision. will receive these emails from SentrySafe.
Object Object primary designation Close-Approach (CA) Date Date and time (TDB) of closest Earth approach.
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