LRO CRaTER Preliminary Temperature Predictions Design A Concept  Old Concept April 12, 2005 Cynthia Simmons/ESS.

Slides:



Advertisements
Similar presentations
Earth-Moon-Sun System
Advertisements

Yuwawanit , surussawadee peralta , fatima
CHAPTER NEW CHAPTER Earth, Moon, and Sun the BIG idea
More Satellite Orbits Introduction to Space Systems and Spacecraft Design Space Systems Design.
Bare rock model Assumptions
1 MITSUBISHI ELECTRIC CORPORATION PROPRIETARY INFORMATION ANY AND ALL UNAUTHORIZED REPRODUCTION OR DISCLOSURE STRICTLY PROHIBITED IGARSS2011 Development.
Morehead State University Morehead, KY Prof. Bob Twiggs Understanding Orbits Assessment Questions
Solar Orbiter EUV Spectrometer
Solar constant The solar constant is the amount of incoming solar radiation per unit area, measured on the outer surface of Earth's atmosphere, in a plane.
Observing the Moon and Eclipses Astronomy 311 Professor Lee Carkner Lecture 4.
Observing the Moon and Eclipses Astronomy 311 Professor Lee Carkner Lecture 4.
Thermal Modeling of the CX Satellite Jacob Boettcher Thermal Team Lead 4/5/02.
Lunar CRater Observation and Sensing Satellite Project LCROSS Site Selection Workshop Oct , 2006 NASA/ARC, Mountain View, California LCROSS Orbital.
Solar and Lunar Eclipse Terms
FASTRAC Thermal Model Analysis By Millan Diaz-Aguado.
Final Version Wes Ousley Dan Nguyen May 13-17, 2002 Micro-Arcsecond Imaging Mission, Pathfinder (MAXIM-PF) Thermal.
3.3 Theory of Climate Change
STEREO IMPACT SEP Critical Design Review 2002-Nov-20 TvR IMPACT/SEP Thermal Design John Hawk, GSFC (301)
ASIM Thermal Mathematical Model Part of WP – ASIM Structural and Thermal Analysis. MTR-meeting
The Moon Lore Landscape Phases Eclipses Formation.
THE MOON SIZE THE MOON IS 2160 MILES ACROSS IT WOULD FIT BETWEEN THE EAST AND WEST COAST.
Earth and Space Your name.
THEMIS Instrument PDR 1 UCB, October 15-16, 2003 IDPU Mechanical / Thermal Preliminary Design Review Heath Bersch University of California - Berkeley.
Eclipses 5/19/ c pgs IN: Which two planets do not have moons? Why not?
Sun, Moon, Earth, How do they work together to help life survive? Eclipses.
Eclipses. Two Types – Solar Eclipse – Lunar Eclipse Solar Eclipse – The moon blocks the earth’s view of the sun. Lunar Eclipse – The earth blocks the.
CE 401 Climate Change Science and Engineering solar input, mean energy budget, orbital variations, radiative forcing January 2012.
The Earth and Moon System. The Effects of Gravity Gravity: a force of attraction between two objects, caused by those objects pulling on each other. The.
also known as “Luna” in Latin it orbits around the Earth at an angle of inclination of 5.14° from the ecliptic plane.
Moon Phases. From any location on the Earth, the Moon appears to be a circular disk which, at any specific time, is illuminated to some degree by direct.
Eclipses. What is an eclipse? The partial or total blocking of one object in space by another When the moon or Earth casts a shadow on the other It can.
Annular Solar Eclipse LG note #41 By Carter Hollings.
Thermal Control Subsystem
SSE-120 Understanding Orbits Questions 1. Why are the suns rays shown as parallel when reaching the earth? 2. Does the earth have the axis tilted all year.
Wes Ousley June 28, 2001 SuperNova/ Acceleration Probe (SNAP) Thermal.
Solar and Lunar Eclipses Which is lunar or solar? Why do we not have an eclipse every month? Why is the moon orange/ red? When will they happen next?
Eclipses Solar & Lunar. Big Ideas 1.Describe the position of the Earth, sun, and moon during solar and lunar eclipses. 2.Identify where total solar and.
C osmic R Ay T elescope for the E ffects of R adiation CRaTER Thermal Analysis Huade Tan 6/27/05.
Introduction to On-Orbit Thermal Environments
The Moon. Moon’s shape and size The moon is 3476 km in diameter, just more than ¼ earth’s diameter The moon is egg shaped, with the round end facing the.
Introduction to On-Orbit Thermal Environments
Total Solar Eclipse 14 November 2012 The Moon and Lunar Eclipses Astronomical Association of Queensland Science Teachers Association of.
Rose Navarro HMI Lead Thermal Engineer
Earth and Moon.
Solar and Lunar Eclipses
Technical Resource Allocations
simple analysis detailed analysis control methods
CHAPTER 20 NEW CHAPTER Earth, Moon, and Sun the BIG idea
PRELIMINARY MAP - Sun On Secondary Reflector Analysis #4
Preliminary MAP - Sun On Secondary Reflector Analysis #3
University of California, Berkeley
LRO Mission Baseline Ephemeris v10.0
The Moon.
Solar and Lunar Eclipses
Spacecraft Thermal System
LRO Mission Operations Concept
Sun – Earth System Questions
3/16 - 8th Grade Agenda Learning Objective: Learn about Phases of the Moon Collect HW: Reading & Notetaking p.211 – 213 Textbook Reading p HW:
Earth’s closest neighbor in space
Sun – Earth System Understanding Orbits Earth’s rotation axis Equator
Moon Notes Chapter 12.
CRATER MODEL ASSUMPTIONS
The Moon. The Moon 1)When did the MOON form? When the moon formed, it was about 14,000 miles away from us. Now it is 250,000 miles away from us. The.
Tides Time and tide wait for no man.
JOSH STAMPS ROBIN HEGEDUS
Solar and Lunar Eclipses
Earth’s closest neighbor in space
LAT Thermal Systems Analysis
THERMAL CONTROL SYSTEM
4/6- 8th Grade Agenda Learning Objective: Learn about Phases of the Moon Textbook Reading: p Chap 11 & 12 Study Guide Text Book Reading: 489 -
Presentation transcript:

LRO CRaTER Preliminary Temperature Predictions Design A Concept  Old Concept April 12, 2005 Cynthia Simmons/ESS

Latest LRO Geometry Model Design A Concept CRaTER located on its own bench in old spacecraft concept Instrument Deck +X -Y Propulsion Module CRaTER Thermal Preliminary Results

LRO Thermal Environment Orbit Parameters type lunar circular altitude 50 +/-20 Km inclination 90° orbit period 113. minutes full sun orbits beta 90.0° to 76.4° (55 days/yr) eclipsed orbits beta 76.4° to 0.0° (310 days/yr) max. eclipse 48. minutes (beta 0°) lunar orbit plane angle to earth 5.15° Beta 0° Lunar Thermal Environment solar constant 1420 - 1280 W/m2 (Hot to Cold) albedo factor 0.13 – 0.06 (0.073 average) Lunar emittance 1 – albedo factor infrared emission sunlit side varies (cosine from sub solar point) sub solar point 400 K (1335 W/m2) dark side 100 K (5.22 W/m2) Beta 90° CRaTER Thermal Preliminary Results

Thermal Model Assumptions For CRaTER Instrument   I/F Conductance Value Model Linear Coupling Instrument Thermal Dissipation (W) Operational Temperature Limit (oC) Instrument (W/m2-C) (J/C) Hot Case Cold Case Mininum Maximum CRATER 20 1.0798 6.6 5.4 -30 35 CRaTER Thermal Preliminary Results

Preliminary Results (Steady-state)   Predicted Temperature (oC) Heater Power (W) Operational Temperature Limit (oC) CRaTER Node Number Hot Case Cold Case (Cold Case) Mininum Maximum CRATER.1 20.9 -26.0 -30 35 CRATER.2 23.2 -23.9 CRATER.3 24.0 -23.1 CRATER.4 23.7 -23.4 CRATER.5 23.8 -23.5 CRATER.6 CRATER.7 27.6 -19.9 CRATER.8 24.4 -22.9 CRATER.9 24.1 -23.2 CRATER.10 CRATER.3001 (MLI) 0.4 -16.1 CRATER.3002 (MLI) 5.5 -62.5 CRATER.3003 (MLI) -30.9 -57.8 CRATER.3004 (MLI) -22.1 -90.3 CRATER.3005 (MLI) -7.4 -157.4 CRATER.3006 (MLI) -152.7 CRATER.3007 (MLI) -42.9 -154.8 CRATER.3008 (MLI) -41.9 -156.8 CRATER.3009 (MLI) 3.4 -146.2 CRATER.3010 (MLI) -7.1 -70.8 Spacecraft Instrument Deck +21 4.1 N/A CRaTER Thermal Preliminary Results

Latest LRO Geometry Model Design E Concept CRaTER location in latest spacecraft concept Instrument Deck Avionics Module Propulsion Module PAF Solar Array +X -Y NOTE: Star Trackers and solar array will be moved to new location. CRaTER Thermal Preliminary Results

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com. Inc. All rights reserved.