Transcript Slide 1

LRO SRR
LRO Mission Level 1 Requirements
NASA’s Goddard Space Flight Center
06 - 1
LRO Mission Level 1 Requirements
LEVEL 1
ESMD-RLEP-0010
LRO Level 1
Requirements
431-PLAN-000002
Person
LRO Project Plan
XX/XX/XX Rev:
Tooley
XX/XX/XX Rev:
Launch Vehicle
LRO Mission
LEVEL 2
XXX-XXX-XXXXXX
431-RQMT-000004
Mission Requirements
Document (MRD)
431-SPEC-000012
431-SPEC-000008
431-PLAN-000101
431-RQMT-000006
431-OPS-000042
LRO Tech
Resoures Reqt
Mechanical
Systems Spec
LRO Electrical
Systems Spec
Observatory
Verification Plan
RLEP Mission
Assurance Reqt
Mission Concept of
Operations Doc
G. Rosanova
Pryzby
07/28/05 Rev:
07/28/05 Rev:
P. Luers
Houghton
R. Kolecki
R. Saylor
07/28/05 Rev:
07/28/05 Rev:
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07/28/05 Rev:
LAMP IRD
CRaTer IRD
Houghton
431-RQMT-000112
XXX-XXX-XXXXXX
XX/XX/XX Rev:
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LROC IRD
XXX-XXX-XXXXXX
XXX-XXX-XXXXXX
Diviner IRD
LEND IRD
XXX-XXX-XXXXXX
LOLA IRD
Person
Person
Person
Person
Person
Person
XX/XX/XX Rev:
XX/XX/XX Rev:
XX/XX/XX Rev:
XX/XX/XX Rev:
XX/XX/XX Rev:
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MDC 00H0016
MRD
Delta II Payload
Planners Guide
The Boeing Company
431-RQMT-000174
431-RQMT-000113
431-SPEC-000091
431-SPEC-000103
431-PLAN-000100
LRO Pointing &
Allignment Reqt’s
General Thermal
Subsystem Spec
LRO Space Wire
Spec
Integration and
Test Plan
E. Holmes
C. Baker
07/28/05 Rev:
07/28/05 Rev:
P. Luers
07/28/05 Rev:
Baker
LRO Mission
Assurance Reqt
GROUND/
OPERATION
Jan 03 Rev:
R. Kolecki
431-REF-000172
07/28/05 Rev:
07/28/05 Rev:
LRO LV IRD
MISSION
ASSURANCE
RESOURCE
ALLOCATIONS
431-RQMT-000092
431-SPEC-000102
Thermal Modeling
Reqt Document
LRO 1553 Bus
Spec
LRO CC Plan
C. Baker
P. Luers
C. Lorentson
07/28/05 Rev:
07/28/05 Rev:
431-HDBK-000093
Tom Jones
431-PLAN-000110
4/1/05
Rev:
07/28/05 Rev:
431-RQMT-000045
Component MID
Drawing
LRO Radiation
Reqt
G.xxxxxxx
P. Luers
07/28/05 Rev:
07/28/05 Rev:
GENERAL
SPECS
SYSTEMS
LRO Orbiter
LEVEL 3
Ground Network
Spacecraft Bus
Instruments
431-ICD-000049
XXX-XXX-XXXXX
XXX-XXX-XXXXX
431-RQMT-000140
431-REQT-TBD
XXX-XXX-XXXXX
431-ICD-000147
431-PROP-000017
XXX-XXX-XXXXX
431-SPEC-000013
431-SPEC-000103
XXX-XXX-XXXXX
431-ICD-000152
431-PLAN-000131
431-ICD-00094
431-ICD-00096
431-ICD-00099
431-ICD-00097
431-ICD-00086
431-ICD-00098
LRO Ground
System ICD
MECHANICAL
C & DH
Electrical Systems
Reqt Doc
Reaction Wheel
EICD
LRO PROP S/S
SOW & SPEC
FLIGHT
DYNAMICS
LRO Power
Subsystem SPEC
LRO Software Spec
THERMAL
Mini RF Electrical
ICD
LAMP Electrical
ICD
LROC Electrical
ICD
LEND Electrical
ICD
DLRE Electrical
ICD
LOLA Electrical
ICD
P. Luers
P. Luers
E. Holmes
E. Holmes
C. Zakrwzski
M. Beckman
T. Spitzer
M.Blau
C. Baker
person
LRO Spacecraft
Payload Assurance
Implementation
Plan
CRaTER Electrical
ICD
G. Rosanova
person
person
person
person
person
11/11/05 Rev:
11/11/05 Rev:
COMMUNICATION
System
Requirements for
the Lunar
Reconnaissance
Orbiter
ACS
R. Saylor
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
431-ICD-000149
431-RQMT-000048
LRO Detailed
Mission Reqt
(DMR) for LRO
Ground System
431-ICD-000141
Electrical
Gimbal Controller
EICD
C&DH EICD
G. Rosanova
11/11/05 Rev:
R. Saylor
Q. Nguyen
11/11/05 Rev:
XXX-ICD-XXXXXX
11/11/05 Rev:
C & DH
MICD/TICD
J. Soloff
11/11/05 Rev:
PDE EICD
Comm System
EICD
11/11/05 Rev:
11/11/05 Rev:
431-ICD-000144
Star Tracker EICD
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
PSE EICD
T. Spitzer
11/11/05 Rev:
431-ICD-000150
Propulsion
Solay Array EICD
T. Spitzer
11/11/05 Rev:
11/11/05 Rev:
431-ICD-TBD
FSW
E. Holmes
Inertial
Measurement Unit
EICD
11/11/05 Rev:
431-ICD-000142
Flight Dynamics
11/11/05 Rev:
431-ICD-000145
C&DH
431-ICD-000147
C. Zakrwzski
11/11/05 Rev:
J. Soloff
11/11/05 Rev:
11/11/05 Rev:
Propulsion EICD
E. Holmes
431-ICD-000146
Q. Nguyen
Mechanical
431-ICD-000143
Thermal
Mini RF Data ICD
person
11/11/05 Rev:
431-ICD-TBD
G. Rosanova
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
person
11/11/05 Rev:
11/11/05 Rev:
Mission
Assurance
431-ICD-000104
431-ICD-000106
431-ICD-000109
431-ICD-000107
431-ICD-000105
CRaTER Data ICD
LAMP Data ICD
LROC Data ICD
LEND Data ICD
DLRE Data ICD
person
person
person
person
person
11/11/05 Rev:
11/11/05 Rev:
431-ICD-000108
LOLA Data ICD
person
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
431-ICD-000114
431-ICD-000119
431-ICD-000116
431-ICD-000117
Mini RF TICD ICD
431-ICD-000118
431-ICD-000115
CRaTER TICD
LAMP TICD
person
person
person
LROC TICD
LEND TICD
DLRE TICD
LOLA TICD
11/11/05 Rev:
person
person
person
person
431-ICD-TBD
431-ICD-000151
Battery EICD
Mini RF Mechanical
ICD
person
T. Spitzer
11/11/05 Rev:
E. Holmes
11/11/05 Rev:
XXX-ICD-XXXXXX
11/11/05 Rev:
Power
Mini-RF
MICD/TICD
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
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11/11/05 Rev:
11/11/05 Rev:
431-ICD-000085
431-ICD-000087
431-ICD-000090
431-ICD-000088
431-ICD-000086
431-ICD-000089
CRaTER
Mechanical ICD
LAMP Mechanical
ICD
LROC Mechanical
ICD
LEND Mechanical
ICD
DLRE Mechanical
ICD
LOLA Mechanical
ICD
person
person
person
person
person
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
11/11/05 Rev:
person
11/11/05 Rev:
M.Reden
Communication
ACS
CRaTER
LAMP
LROC
LEND
DRLE
LOLA
11/11/05 Rev:
Tech Demo
NASA’s Goddard Space Flight Center
06 - 2
LRO Mission Level 1 Requirements
• The high level (Level 1) LRO requirements are levied on the
Project by the LRO Requirements Document, ESMD-RQMT0010.
– The document includes a description of the process by which NASA arrived at the
LRO requirements.
– This document is not reviewable at the LRO SRR, rather it is the starting point.
• The LRO Level 1 Requirements were developed and
constructed to sufficiently define the requirements in
sufficient detail to fulfill the objective of providing specific
data to ESMD in order to further overall Exploration
objectives.
NASA’s Goddard Space Flight Center
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LRO Mission Level 1 Requirements
• The LRO PIs and Project Scientist assisted, and continue to assist in the
correct description of the measure objectives and data products in the
Level 1 requirements as these are largely defined by the selected LRO
investigation proposals.
– The document has been baselined by ESMD but there are significant TBR/TBDs
related to completing the mission success criteria. This revision will also be potentially
used to make minor corrections to the requirements if warranted. No identified potential
changes or TBD/TBRs are judged by the Project to affect the content of this review or
substance of this review.
– This review is based on the Preliminary Rev.A dated 6/30/2005.
• The Level 1 requirements will be presented in tabular format with the
exact content contained in ESMD-RQMT-0010.
– The Instrument flow these directly to their Level 2 performance requirements.
– The internal flow from Measurement Requirement to the anticipated Data Products is
given in the Level 1 requirements document.
– The Project Requirements are presented and the next level of flow is indicated. These
flow down to mission level 2 requirements.
NASA’s Goddard Space Flight Center
06 - 4
LRO Mission Level 1 Requirements
RLEP-RQMT-001 (6/30/2005) Measurement Requirements
Requirement
Number
RLEP-LRO-M10
RLEP-LRO-M20
Requirement
The LRO shall characterize the deep space radiation
environment in lunar orbit, including neutron albedo.
Rationale : The ORDT specified that LRO should
characterize the global lunar radiation environment, in
particular at energies in excess of 10 MeV, and its biological
impacts and potential mitigation, as well as investigate
shielding capabilities and validation of other deep space
radiation mitigation strategies involving materials.
The LRO shall characterize the deep space radiation
environment in lunar orbit, including biological effects
caused by exposure to the lunar orbital radiation
environment.
Rationale : The ORDT specified that LRO should
characterize the global lunar radiation environment and its
biological impacts and potential mitigation, as well as
investigate shielding capabilities and validation of other deep
space radiation mitigation strategies involving materials.
NASA’s Goddard Space Flight Center
Instrument
Data Product
RLEP-RQMT-0010 Table 5-1
LEND
Radiation Data Product for global distribution of
neutrons at Moon’s orbit with spatial resolution of
50 km at different energy ranges from thermal
energy up to >15 MeV separately for periods of
quiet Sun and for periods of Solar Particle Events.
CRaTER
Measure and characterize that aspect of the deep
space radiation environment, Linear Energy
Transfer (LET) spectra of galactic and solar cosmic
rays (particularly above 10 MeV), most critically
important to the engineering and modeling
communities to assure safe, long-term, human
presence in space
CRaTER
Investigate the effects of shielding by measuring
LET spectra behind different amounts and types of
areal density, including tissue equivalent plastic.
06 - 5
LRO Mission Level 1 Requirements
RLEP-RQMT-001 (6/30/2005) Measurement Requirements
Requirement
Number
Requirement
RLEP-LRO-M30
The LRO shall collect global geodetic data using
spatially resolved topography with a 10m vertical
accuracy with a 2km cross-track and 30m along track
sampling at the equator.
Rationale : The ORDT specified that LRO should determine
the global geodetic grid for the Moon in three dimensions
with high spatial resolution as specified in the data product
table.
RLEP-LRO-M30
The LRO shall collect global geodetic data using
spatially resolved topography with a 10m vertical
accuracy with a 2km cross-track and 30m along track
sampling at the equator.
Rationale : The ORDT specified that LRO should determine
the global geodetic grid for the Moon in three dimensions
with high spatial resolution as specified in the data product
table.
RLEP-LRO-M40
The LRO shall obtain geodetic lunar global topography
(at landing-site relevant scales - 30m down-track and
50m cross-track) with spatial resolution of 50m at the
polar regions (within 5 degrees of the poles), and 1km
at the equator.
Rationale : The ORDT specified that LRO should determine
the global geodetic grid for the Moon in three dimensions
with high spatial resolution.
NASA’s Goddard Space Flight Center
Instrument
Data Product
RLEP-RQMT-0010 Table 5-1
LOLA
Provide global digital elevation model of the moon
with 1 m vertical resolution and 100 m horizontal
resolution with 1 km average cross track sampling
at the equator
LOLA
Provide global digital elevation model of the moon
with 1 m vertical resolution and 100 m horizontal
resolution with 1 km average cross track sampling
at the equator
LOLA
Provide global topography with 1 m vertical
resolution and 100 m horizontal resolution with 1
km average cross track sampling at the equator
LROC
For areas of high interest (targets), provide 2m
scale Digital Elevation Models (DEM) for areas 5km
x 5km.
LROC
Acquire 100m/pixel global stereo imaging reducible
to 1km/pixel global topography in EDR format (no
maps). Back up for LOLA data, if needed WAC.
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LRO Mission Level 1 Requirements
RLEP-RQMT-001 (6/30/2005) Measurement Requirements
Requirement
Number
Requirement
RLEP-LRO-M50
The LRO shall obtain temperature mapping from
40 - 300K in the Moon’s polar regions (within 5 degrees
of the poles) to 300m spatial resolution and 5K precision
for a full lunar cycle.
Rationale : The ORDT specified that LRO should assess
the resources in the Moon's polar regions (and associated
landing site safety evaluation), including characterization of
permanently shadowed regions and evaluation of any water
ice deposits
RLEP-LRO-M60
The LRO shall obtain landform-scale imaging of lunar
surfaces in permanently shadowed regions at 50m
spatial resolution.
Rationale : The ORDT specified that LRO should assess
the resources in the Moon's polar regions (and associated
landing site safety evaluation), including characterization of
permanently shadowed regions and evaluation of any water
ice deposits.
RLEP-LRO-M70
The LRO shall identify putative deposits of appreciable
near-surface water ice in the Moon’s polar cold traps at
a 100m spatial resolution.
Rationale : The ORDT specified that LRO should assess
the resources in the Moon's polar regions (and associated
landing site safety evaluation), including characterization of
permanently shadowed regions and evaluation of any water
ice deposits
NASA’s Goddard Space Flight Center
Instrument
Data Product
RLEP-RQMT-0010 Table 5-1
Diviner
Direct temperature mapping at ~300M spatial
resolution with minimum detectable temperature of
24K over an entire diurnal cycle enables the
detection and characterization of cold traps in polar
shadowed regions.
LOLA
Provide digital elevation model of topography in
permanently shadowed polar regions with 50m
horizontal resolution, 1m vertical resolution.
LAMP
Albedo maps of all permanently shadowed regions
with resolutions down to 500m.
LOLA
Provide reflectance data from the permanently
shadowed regions (PSRs) to identify surface ice
signatures at a limit of 4% ice surface coverage by
area.
LEND
Develop maps of water ice column density on polar
regions of the Moon with spatial resolution from 520km.
LAMP
Develop water-frost concentration maps of the
lunar polar regions. Mapping resolutions as good
as 3km for frost abundances down to 1.5%.
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LRO Mission Level 1 Requirements
RLEP-RQMT-001 (6/30/2005) Measurement Requirements
Requirement
Number
RLEP-LRO-M80
RLEP-LRO-M90
Requirement
The LRO shall assess meter-scale features of the lunar
surface to enable safety analysis for potential lunar
landing sites over targeted areas of 100km^2 per the
LRO Landing Site Target Specification Document.
Rationale : The ORDT specified that LRO should assess
the resources in the Moon's polar regions (and associated
landing site safety evaluation), including characterization of
permanently shadowed regions and evaluation of any water
ice deposits.
The LRO shall characterize the Moon’s polar region
(within 5 degrees of the poles) illumination environment
at relevant temporal scales (i.e., typically that of hours)
to a 100m spatial resolution and 5 hour average
temporal resolution.
Rationale : The ORDT specified that LRO should assess
the resources in the Moon's polar regions (and associated
landing site safety evaluation), including characterization of
permanently shadowed regions and evaluation of any water
ice deposits.
NASA’s Goddard Space Flight Center
Instrument
Data Product
RLEP-RQMT-0010 Table 5-1
LROC
Provide up to 50 Mosaics of selected potential
landing sites with 1 m/pixel resolution.
TBR
Provide crater size density and size distribution
maps of up to 50 potential landing sites.
LOLA
Provide topography, surface slopes, and surface
roughness at 25-m spacing over a 70-m wide field
of view (FOV) swath at up to 50 selected potential
landing sites
LROC
Provide 1 m/pixel resolution summer (uncontrolled)
mosaics of the lunar poles (+/- 4 degrees). (Narrow
Angle Camera [NAC]). There will be some gores in
the data due to tolerance (20km) of the nominal
50km orbit altitude.
LOLA
LOLA will map the polar regions poleward of
latitudes 86° with a vertical resolution of 10
centimeters (cm) and a spatial resolution of 25 to
35m after one year, which will identify potential
sites of optimal solar power generation
Diviner
Provide illumination map derived from Illumination
and Scattering Model (Includes slopes, raytraced
shadows, and full 3-D radiosity solution for
scattered solar and infrared radiation), and 1-D
lunar thermal model
06 - 8
LRO Mission Level 1 Requirements
RLEP-RQMT-001 (6/30/2005) Measurement Requirements
Requirement
Number
Requirement
Instrument
RLEP-LRO-M100
RLEP-LRO-M110
The LRO shall obtain high spatial resolution global
resources assessment including elemental
composition, mineralogy, and regolith characteristics
to a 20% accuracy and a 5km resolution.
Rationale : The ORDT specified that LRO should obtain
high spatial resolution assessments of global lunar
resources.
The LRO shall obtain high spatial resolution hydrogen
mapping of the Moon's surface to a 20% accuracy and 5
km resolution at the poles.
Rationale : The ORDT specified that LRO should obtain
high spatial resolution assessments of global lunar
resources.
NASA’s Goddard Space Flight Center
Data Product
RLEP-RQMT-0010 Table 5-1
LROC
Global imaging 400m/pixel in the ultraviolet (UV)
bands and 100m/pixel in the visible bands, ten
uncontrolled demonstration multi-spectral mosaics
for high priority targets
Diviner
Fine-component thermal inertia and lambert albedo
from surface temperature, solar reflectance and
topography measurements
LEND
Determine hydrogen content of subsurface at polar
regions with spatial resolution from Half-Width HalfMaximum (HWHM)=5km and with variation
sensitivity from 100 parts per million (ppm)
06 - 9
LRO Mission Level 1 Requirements
RLEP-RQMT-001 (6/30/2005) Project Requirements
Requirement
Number
Requirement
RLEP-LRO-P10
Planetary Protection The LRO will be classified as a Planetary Protection Category I
mission.
Rationale :Document location of LRO end-of-mission impact in Final Report.
RLEP-LRO-P20
Mission Lifetime The LRO mission shall have 1 year mission lifetime with a 5 year
potential for an extended mission.
Rationale : The 1 year lifetime was recommended by the ORDT for acquiring the desired
measurements. The additional lifetime objective provides program resiliency and flexibility
as required by RLEP-P20 and RLEP-P30 and as recommended by the Space
Communications Architecture Working Group (SCAWG). The extended mission options
include communications relay for future RLEP program landed assets, or extended required
measurements, or targeted measurements.
RLEP-LRO-P30
Launch Date The LRO shall be launched in late 2008.
Rationale : The launch year is per the President's vision.
Traces to:
Launch Site The LRO shall be launched from Cape Canaveral AFS.
RLEP-LRO-P40
Launch Vehicle The LRO shall be launched on an Intermediate-class launch vehicle.
RLEP-LRO-P50
RLEP-LRO-P60
Orbit - The LRO shall collect the measurement data, specified in this document, for one
Earth year in a 50 km (nominal) near-circular polar lunar orbit.
NASA’s Goddard Space Flight Center
06 - 10
LRO Mission Level 1 Requirements
RLEP-RQMT-001 (6/30/2005) Project Requirements
Requirement
Number
RLEP-LRO-P70
RLEP-LRO-P80
Requirement
Traces to:
Spacecraft Pointing The LRO spacecraft shall be a 3-axis stabilized nominally nadirpointing platform.
Spacecraft Instrument Accommodations The LRO shall include an instrument
complement consisting of the Lunar Orbiter Laser Altimeter (LOLA), the Lunar
Reconnaissance Orbiter Camera (LROC), the Lunar Exploration Neutron Detector (LEND),
the Diviner Lunar Radiometer Experiment, the Lyman-Alpha Mapping Project (LAMP), and
the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) as selected for
measurement investigations.
Rationale : Preliminary requirement protected for a maximum mass of 100 kg, a maximum
power consumption of 100W, and maximum measurement data output of 900 Gb/day.
RLEP-LRO-P90
Measurement Investigation Requirements The LRO investigation teams will be
responsible for collecting the measurement, engineering, and ancillary information
necessary to validate and calibrate the measurement data prior to delivery to the PDS.
RLEP-LRO-P100
Measurement Investigation Requirements Data products delivered to the PDS will be
documented, validated, and calibrated in physical units useable by the exploration and
science communities at large
RLEP-LRO-P110
Measurement Investigation Requirements The time required to complete this process
and make the data available to the Moon/Mars exploration communities and the general
public will be six months or less.
RLEP-LRO-P120
Data Policies and Validation Requirements PIs selected for measurement investigations
will plan to archive their Data Products and supporting data in the Planetary Data System
(PDS) in a PDS-compliant data format.
NASA’s Goddard Space Flight Center
06 - 11
LRO Mission Level 1 Requirements
RLEP-RQMT-001 (6/30/2005) Project Requirements
Requirement
Number
Requirement
RLEP-LRO-P130
Data Policies and Validation Requirements Plans will conform to policy and
requirements for the validation and archiving of data presented in the document, “LRO Data
Management Plan”.
RLEP-LRO-P140
Data Policies and Validation Requirements Initial data analyses for the LRO
measurement investigations will be accomplished by the PIs and their teams.
RLEP-LRO-P150
Communications Compatibility The LRO should strive to establish as much as practical
interoperable communications with any contemporaneous ESS systems and other NASA
internal and/or external Lunar missions where it would be advantageous to the exploration
effort.
RLEP-LRO-P160
Traces to:
Technology Demonstration The LRO shall accommodate the NAWC provided Mini-RF
device in order to provide the opportunity for demonstration of this technology in the lunar
orbital environment provided it does not increase the project cost, delay the launch date,
adversely impact the achievement of full mission success, or increase the overall risk
posture of the primary mission.
NASA’s Goddard Space Flight Center
06 - 12