Accuracy is the maximum deviation from the ideal outcome (e.g., moving to an exact position, exactly measuring a quantity, or bonding a stack of pre-aligned wafers without disturbing the alignment) and the actual outcome. V-slot profile consisting of lengths of square or rectangular extruded aluminum, typically 6105-T5 aluminium alloy, with a T-slot down the center line of one or more sides. It is also known as 80/20 framing, after the company 80/20, Inc., one of the prominent V-slot framing brands, the name of which is based on the 80/20 principle. T slot is great for assembly, but will not allow you to run it as a linear guide rail. A v-slot rail is either a single purpose or modified t-slot rail with angled sides In the slot that will let you run a self-centering wheel / guide rail.
The following study, commissioned by the Air Force, concludes that, 'All the SPS PS assertions examined in the report were met in 2019.' The assertions evaluated include those of accuracy, integrity, continuity, and availability of the GPS signal-in-space (SIS) along with the assertions on accuracy of positioning and time transfer.
2019 GPS SPS Performance AnalysisDownload 4 MB
2019 Performance Metrics
The following data from the report above summarizes the SPS Performance Standard metrics examined for 2019. Document references are linked to corresponding pages in the 2008 SPS Performance Standard (1.7 MB PDF). ✔ means 'Met.'
Document Section | Performance Metric | 2019 Status |
---|---|---|
3.3.1 SIS Per-Satellite Coverage | 100% Coverage of Terrestrial Service Volume | not eval. |
3.3.2 SIS Constellation Coverage | 100% Coverage of Terrestrial Service Volume | ✔ |
3.4.1 SIS URE Accuracy | ≤ 7.8 m 95% Global average URE during normal operations over all AODs | ✔ |
≤ 6.0 m 95% Global average URE during normal operations at zero AOD | ✔ | |
≤ 12.8 m 95% Global average URE during normal operations at any AOD | ✔ | |
≤ 30 m 99.94% Global average URE during normal operations | ✔ | |
≤ 30 m 99.79% Worst case single point average URE during normal operations | ✔ | |
≤ 388 m 95% Global average URE after 14 days without upload | N/A | |
3.4.2 SIS URRE Accuracy | ≤ 0.006 m/s 95% Global average at any AOD | ✔ |
3.4.3 SIS URAE Accuracy | ≤ 0.002 m/s2 95% Global average at any AOD | ✔ |
3.4.4 SIS UTCOE Accuracy | ≤ 40 nsec 95% Global average at any AOD | ✔ |
3.5.1 SIS Instantaneous URE Integrity | ≤ 1×10−5 Probability over any hour of exceeding the NTE tolerance without a timely alert | ✔ |
3.5.4 SIS Instantaneous UTCOE Integrity | ≤ 1×10−5 Probability over any hour of exceeding the NTE tolerance without a timely alert | ✔ |
3.6.1 SIS Continuity - Unscheduled Failure Interruptions | ≥ 0.9998 Probability over any hour of not losing the SPS SIS availability from the slot due to unscheduled interruption | ✔ |
3.6.3 Status and Problems Reporting | Appropriate NANU issued at least 48 hours prior to a scheduled event | ✔ |
3.7.1 SIS Per-Slot Availability | ≥ 0.957 Probability that (a.) a slot in the baseline 24-slot will be occupied by a satellite broadcasting a healthy SPS SIS, or (b.) a slot in the expanded configuration will be occupied by a pair of satellites each broadcasting a healthy SIS | ✔ |
3.7.2 SIS Constellation Availability | ≥ 0.98 Probability that at least 21 slots out of the 24 slots will be occupied by a satellite (or pair of satellites for expanded slots) broadcasting a healthy SIS | ✔ |
≥ 0.99999 Probability that at least 20 slots out of the 24 slots will be occupied by a satellite (or pair of satellites for expanded slots) broadcasting a healthy SIS | ✔ | |
3.7.3 Operational Satellite Counts | ≥ 0.95 Probability that the constellation will have at least 24 operational satellites regardless of whether those operational satellites are located in slots or not | ✔ |
3.8.1 PDOP Availability | ≥ 98% Global PDOP of 6 or less | ✔ |
≥ 88% Worst site PDOP of 6 or less | ✔ | |
3.8.2 Position Service Availability | ≥ 99% Horizontal, average location | ✔ |
≥ 99% Vertical, average location | ||
≥ 90% Horizontal, worst-case location | ||
≥ 90% Vertical, worst-case location | ||
3.8.3 Position Accuracy | ≤ 9 m 95% Horizontal, global average | ✔ |
≤ 15 m 95% Vertical, global average | ||
≤ 17 m 95% Horizontal, worst site | ||
≤ 37 m 95% Vertical, worst site | ||
≤ 40 nsec time transfer error 95% of the time | ✔ |
Previous Year Performance Reports
FAA Data
The Federal Aviation Administration publishes additional data on GPS performance as monitored by the ground reference network of the Wide Area Augmentation System (WAAS). The data include:
UTC Offset Anomaly
Accuracy
Top 10 Contents[]
- Best Range Gear OSRS
Many people were not happy with the direction of development that RuneScape bosses have chosen. This gave birth to the Old School RuneScape with all its retro charm, special features, mechanics and, of course, the gear and the unique ways it works in a full set. It's hard to choose the best range gear OSRS can offer simply because certain gear fits certain needs. Here are the selected, top-class contestants that desperately need your vote. Gambling age rating. OSRS best range gear is to be defined right here and now by the most hardcore players that have ever existed. Want to join the party?
Ring slot Archers ring (i) +8/ Archers ring +4.
An upgraded Archers ring OSRS range gear. It can be earned as a prize at the Nightmare Zone. 650,000 reward points is the price that you need to pay to get it. The imbued status will be lost if the holder dies in a PvP match, this doesn't carry over to deaths in PvE, though.
Shield slot: None/ Odium ward/ DFS
Depending on the weapon in use, you can increase your range armor in OSRS. Odium ward offers one of the best ranged attack bonuses, outmatched only by the Twisted Buckler. DFS, in turn, is often listed among the best shields in the entire game. It's both an anti-dragon and anti-frost the same time.
Weapon slot: Heavy ballista +120/ Armadyl crossbow +100/ Toxic blowpipe +60.
Let's move on from the ranged armor in OSRS and discuss the weapon slot. Heavy ballista provides tons of damage, offers speed comparable to the Godsword and a Concentrated Shot special attack. Armadyl crossbow is notorious for the faith bonus and extended range. Toxic blowpipe is a dart weapon with stackable range, depending on ammo used.
Cape slot: Ava's Accumulator +4
This OSRS ranged gear is rewarded through Animal Magnetism quest. It provides the wearer with the best ranged bonus that can be found in the game for this particular gear slot. It attracts random metal items and provides the ability to pick up ammunition when weapons are fired.
The following study, commissioned by the Air Force, concludes that, 'All the SPS PS assertions examined in the report were met in 2019.' The assertions evaluated include those of accuracy, integrity, continuity, and availability of the GPS signal-in-space (SIS) along with the assertions on accuracy of positioning and time transfer.
2019 GPS SPS Performance AnalysisDownload 4 MB
2019 Performance Metrics
The following data from the report above summarizes the SPS Performance Standard metrics examined for 2019. Document references are linked to corresponding pages in the 2008 SPS Performance Standard (1.7 MB PDF). ✔ means 'Met.'
← Drag table to scroll →Document Section | Performance Metric | 2019 Status |
---|---|---|
3.3.1 SIS Per-Satellite Coverage | 100% Coverage of Terrestrial Service Volume | not eval. |
3.3.2 SIS Constellation Coverage | 100% Coverage of Terrestrial Service Volume | ✔ |
3.4.1 SIS URE Accuracy | ≤ 7.8 m 95% Global average URE during normal operations over all AODs | ✔ |
≤ 6.0 m 95% Global average URE during normal operations at zero AOD | ✔ | |
≤ 12.8 m 95% Global average URE during normal operations at any AOD | ✔ | |
≤ 30 m 99.94% Global average URE during normal operations | ✔ | |
≤ 30 m 99.79% Worst case single point average URE during normal operations | ✔ | |
≤ 388 m 95% Global average URE after 14 days without upload | N/A | |
3.4.2 SIS URRE Accuracy | ≤ 0.006 m/s 95% Global average at any AOD | ✔ |
3.4.3 SIS URAE Accuracy | ≤ 0.002 m/s2 95% Global average at any AOD | ✔ |
3.4.4 SIS UTCOE Accuracy | ≤ 40 nsec 95% Global average at any AOD | ✔ |
3.5.1 SIS Instantaneous URE Integrity | ≤ 1×10−5 Probability over any hour of exceeding the NTE tolerance without a timely alert | ✔ |
3.5.4 SIS Instantaneous UTCOE Integrity | ≤ 1×10−5 Probability over any hour of exceeding the NTE tolerance without a timely alert | ✔ |
3.6.1 SIS Continuity - Unscheduled Failure Interruptions | ≥ 0.9998 Probability over any hour of not losing the SPS SIS availability from the slot due to unscheduled interruption | ✔ |
3.6.3 Status and Problems Reporting | Appropriate NANU issued at least 48 hours prior to a scheduled event | ✔ |
3.7.1 SIS Per-Slot Availability | ≥ 0.957 Probability that (a.) a slot in the baseline 24-slot will be occupied by a satellite broadcasting a healthy SPS SIS, or (b.) a slot in the expanded configuration will be occupied by a pair of satellites each broadcasting a healthy SIS | ✔ |
3.7.2 SIS Constellation Availability | ≥ 0.98 Probability that at least 21 slots out of the 24 slots will be occupied by a satellite (or pair of satellites for expanded slots) broadcasting a healthy SIS | ✔ |
≥ 0.99999 Probability that at least 20 slots out of the 24 slots will be occupied by a satellite (or pair of satellites for expanded slots) broadcasting a healthy SIS | ✔ | |
3.7.3 Operational Satellite Counts | ≥ 0.95 Probability that the constellation will have at least 24 operational satellites regardless of whether those operational satellites are located in slots or not | ✔ |
3.8.1 PDOP Availability | ≥ 98% Global PDOP of 6 or less | ✔ |
≥ 88% Worst site PDOP of 6 or less | ✔ | |
3.8.2 Position Service Availability | ≥ 99% Horizontal, average location | ✔ |
≥ 99% Vertical, average location | ||
≥ 90% Horizontal, worst-case location | ||
≥ 90% Vertical, worst-case location | ||
3.8.3 Position Accuracy | ≤ 9 m 95% Horizontal, global average | ✔ |
≤ 15 m 95% Vertical, global average | ||
≤ 17 m 95% Horizontal, worst site | ||
≤ 37 m 95% Vertical, worst site | ||
≤ 40 nsec time transfer error 95% of the time | ✔ |
Previous Year Performance Reports
FAA Data
The Federal Aviation Administration publishes additional data on GPS performance as monitored by the ground reference network of the Wide Area Augmentation System (WAAS). The data include:
UTC Offset Anomaly
Accuracy
Top 10 Contents[]
- Best Range Gear OSRS
Many people were not happy with the direction of development that RuneScape bosses have chosen. This gave birth to the Old School RuneScape with all its retro charm, special features, mechanics and, of course, the gear and the unique ways it works in a full set. It's hard to choose the best range gear OSRS can offer simply because certain gear fits certain needs. Here are the selected, top-class contestants that desperately need your vote. Gambling age rating. OSRS best range gear is to be defined right here and now by the most hardcore players that have ever existed. Want to join the party?
Ring slot Archers ring (i) +8/ Archers ring +4.
An upgraded Archers ring OSRS range gear. It can be earned as a prize at the Nightmare Zone. 650,000 reward points is the price that you need to pay to get it. The imbued status will be lost if the holder dies in a PvP match, this doesn't carry over to deaths in PvE, though.
Shield slot: None/ Odium ward/ DFS
Depending on the weapon in use, you can increase your range armor in OSRS. Odium ward offers one of the best ranged attack bonuses, outmatched only by the Twisted Buckler. DFS, in turn, is often listed among the best shields in the entire game. It's both an anti-dragon and anti-frost the same time.
Weapon slot: Heavy ballista +120/ Armadyl crossbow +100/ Toxic blowpipe +60.
Let's move on from the ranged armor in OSRS and discuss the weapon slot. Heavy ballista provides tons of damage, offers speed comparable to the Godsword and a Concentrated Shot special attack. Armadyl crossbow is notorious for the faith bonus and extended range. Toxic blowpipe is a dart weapon with stackable range, depending on ammo used.
Cape slot: Ava's Accumulator +4
This OSRS ranged gear is rewarded through Animal Magnetism quest. It provides the wearer with the best ranged bonus that can be found in the game for this particular gear slot. It attracts random metal items and provides the ability to pick up ammunition when weapons are fired.
V Slot Accuracy Test
Amulet slot: Necklace of Anguish +15/ Amulet of Fury +10/ Amulet of glory +10
V Slot Accuracy Tool
Regarding the amulet slot for OSRS range gear, we have three powerful items. Necklace of anguish requires 75 HP to wear and offers powerful offensive bonuses for the Ranged class. Amulet of Fury, on the contrary, focuses mainly on defense, strength, and prayer skills. Amulet of glory is cheaper but still provides decent attack bonuses.