Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ASCBC PHASE 1 AND 2 > ASCBC DAY 3 TEST > Flashcards

ASCBC DAY 3 TEST Flashcards

1
Q

What is the Space Surveillance Network (SSN)?

A

Detect-Track-Identify/ Characterize-Catalog and monitor man-made objects in Space.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are two types of sensors used by the SSN?

A

Active- Radar

Passive- Optical (telescope/ camera)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which Organization is the primary C2 center for the SSN?

A

CspOC-Combined Space Operation Center - Vandenberg, CA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does Metric Data Provide?

Falls under SSN capabilities

A

Describes ‘where is it’ …describes the ELSET (a satellites position in orbit now and in the future.

Also, supplies information on cataloged objects, new domestic and foreign launches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does SOI (Space Object Identification) data provide?

A

“What is it”-Determines they physical and dynamic properties (shape/ size) of an object being tracked to identify payload missions and any changes to satellite configuration.

Think the example withe ‘claw’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are some reasons why we track satellite re-entries?

A
  1. Could be mistaken for a missile attack
  2. Inform appropriate agency of potential threat
  3. Notify nations about a re-entering object
  4. Assess blame and collect reparations
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Define 3 categories of sensors used by the SSN

A
  1. Dedicated: Primary Mission of SSN / Owned by SPACECOM
  2. Collateral: Not-Primary Mission of SSN (missile defense)/ Owned by STRATCOM
  3. Contributing: Under contract/ provide SSN support
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the function of Telemetry Operations?

A

Receive information from the satellite regarding its ‘health’.

Allows the SOC (Satellite Operations Center) to receive the state of health

ex: solar array position, battery temperature, reaction wheel speed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the functions of Tracking Operations?

A

Tracking Operations gives TEARR data and allows the tracking station to lock onto a satellite for duration of mission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the function of Commanding Operations?

A

Command the satellite to perform a task. Enter a command into a computer on Satellite to make it ‘burn for 0.35 seconds, for example

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What Satellites are controlled by 1 SOPS

A
  • GSSAP

- SBSS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What Satellites are controlled by 2 SOPS

A

GPS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What Satellites are controlled by 4 SOPS

A

DSCS (Bus Only)

WGS (Bus Only)

AEHF

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What Satellites are controlled by 6 SOPS

A

DMPS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the function of the 53d Signal BN?

Where is the HQs located?

A

Controls the DSCS and WGS payload/ sensor

Colorado Springs, CO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Explain the function of a WSOC (Wideband Satellite Operations Center)

How many WSOCs are there?

A

Responsible for:

  • Control Terminal Access
  • Maintain Operational Databases (ODB)
  • Monitor the Health and Welfare of the SHF Satellites

-5 total WSOCs

(Any WSOCs has the ability to C2 any satellite-BUS Only)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the relevance of SATCOM to the Army?

A

BLOS and data relay

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

List 3 types of orbits used for communications satellites

What is the primary orbit for SATCOM?

A

GEO, LEO, HEO

Primary: GEO

Iridium: LEO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

List the 3 frequency bands that are utilized for Satellite Communications

A

UHF: Narrowband (300MHz-3GHz)

SHF: Wideband (3GHz-30GHz)

EHF: Protected (30GHz-300GHz)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What frequency band is most susceptible to jamming?

A

UHF: Narrowband

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which Frequency Band is most susceptible to atmospheric absorption, such as Earth Weather?

A

EHF: Protected Band

22
Q

What frequency band is most susceptible to ionospheric disturbances, such as scintillation/ space weather?

A

UHF: Narrowband

23
Q

SHF MILSATCOM satellites have jamming mitigation capabilities. List the constellation and the name of the method associated with the listed jamming mitigation capability.

A

DSCS: Beam Nulling

WGS: Beam Shaping

24
Q

What is beam shaping?

A

Beam shaping is WGS satellites ability to shape the coverage area of the footprint

25
Q

what is beam nulling?

A

DSCS satellite’s ability to turn off a specific spot within the footprint

26
Q

What make Iridium satellite constellation unique?

A

Global Coverage

Within LEO

66 Satellites

Possess crosslink capabilities

In Hawaii is the DOD Gateway to support Iridium to home telephone

27
Q

What is the web-portal for submitting electromagnetic interference (EMI) reports?

A

JSIR-O

28
Q

UHF Military Satellites

A

FLTSAT

UFO

MUOS

29
Q

UHF Band Capabilities

A

Small terminal capabilities (think TACSAT…)

Easier for antenna pointing

Weather has marginal effects

Foliage penetration

30
Q

UHF Limitations

A

Access limitations: 1.6-2.4kbps

Channels are limited

Limited bandwidth

31
Q

UHF Band Vulnerabilities

A

Easily Jammed

Easily pirated: use guard bands for example

Scintillation

32
Q

SHF Military Satellites

A

DSCS

WGS

33
Q

SHF Band Capabilities

A

High Data Rates

High Bandwidth “considered the sweet spot”

NIPR/SIPR/VOIP/ UAVs

34
Q

SHF Band Limitations

A

Antenna is not man-portable (looks like RHN)

Limited mobility with some terminals

High Satellite and terminal cost

35
Q

SHF Band Vulnerabilities

A

Jamming (not as bad as UHF band)

Rain/ Snow

Scintillation

36
Q

EHF Military Satellites

A

AEHF

MILSTAR

37
Q

EHF Band Capabilities

A

Jam Resistant

Extensive Bandwidth

Uncrowded Spectrum

Crosslinking Capability

Scintillation Resistant

38
Q

EHF Band Limitations

A

Newer technology

Space and Ground Equipment is expensive to purchase

Trade-off between data rates/ protection…lower data rates, higher protection

39
Q

Commercial Satellite Capabilities

A

Surge Capacity

Redundancy

Flexibility

Short Acquisition Time

40
Q

Commercial Satellite Limitations

A

Coverage limitations - small footprint designed around customer

Receive/ Transmit equipment compatibility

“peaceful” use restrictions: Host Nation Agreement

41
Q

Commercial Satellite Vulnerabilities

A

limited security

limited survivability

no control of spacecraft

no control of teleports

42
Q

What are the 4 types of electromagnetic Interference?

Which is considered Intentional?

A
  1. Natural: caused by nature (solar storm)
  2. Friendly: Unintentional interference by US/ Coalition forces (blue on blue)
  3. Neutral: Unintentional interference by others
  4. Enemy: Intentional jamming by an adversary
43
Q

How can satellite owners protect their satellites from space hazards or malicious activities against their satellites?

A
  1. Maneuver out of the way
  2. shuttering optics, sensors
  3. shield against the space environment
44
Q

Describe two main types of Jamming, give an example for both

A
  1. Uplink Jamming: Ground to Satellite on the ‘ear’ side to jam on the ‘mouth’ side. Must have access to the receiver
  2. Downlink Jamming: asset on ground jams the downlink signal, preventing the signal from reaching the nodes on ground
45
Q

What is defensive Space Control?

A

Active and Passive measures taken to protect friendly space capabilities from attack, interference, or intentional hazards (JP 3-14)

46
Q

Geolocation of potential sources of electromagnetic interference can be accomplished through the use of the following 2 measurements:

A

TDOA

FDOA

47
Q

Describe TDOA

A

TDOA: Time Difference on Arrival –> Measures the different TIME of the signal received over two paths

48
Q

Describe FDOA

A

FDOA: Frequency Difference on Arrival –> measures the change in FREQUENCY using DOPPLER SHIFT

49
Q

What is Offensive Space Control?

A

Operations Conducted for Space Negation, where Negation involves measures to Deceive, Disrupt, Deny, Degrade, and/or Destroy systems

50
Q

What is the DODs preferred approach to Space Control negation?

A

Tactical Denial: preferred using temporary effects and it is reversible

ex: screw up a satellite signal…then undo and move out….like nothing happened, just a ‘whoopsie, had interference’.

51
Q

What are the 3 Ds of Space Control? Describe their definitions and which are preferred for Tactical Denial

A
  1. Deceive: Mislead adversary by manipulation, distortion, or falsification of evidence or information (TD)
  2. Disrupt: Temporarily impair w/o physical damage (TD)
  3. Deny: Temporarily eliminate w/o physical damage (TD)
  4. Degrade: Permanently impair w/ some physical damage (i.e: spary optic) (Not TD)
  5. Destroy: Permanently eliminate w/ physical damage (Not TD)
52
Q

EHF has Anti-Jamming Capability

UHF has Accessibility

EHF has most Bandwidth

and

SHF is the sweet spot

A

ASCBC PHASE 1 AND 2 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions