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1、THE TIME FOR INTERNATIONAL SPACE TRAFFIC MANAGEMENT IS NOW C O R P O R AT I O NRESEARCH BRIEFAs of December 2022,space traffic included approximately 6,900 active satellites more than 36,500 pieces of trackable debris that are 10 cm or larger approximately one million objects that range in size from
2、 1 cm to 10 cm.THE NEED TO MANAGE SPACE TRAFFIC IS BECOMING MORE URGENTSince approximately 2000,the boom in space accessibility and interest has fueled tremendous growth in the volume and variety of satellites orbiting Earth,as well as the data and services those satellites provide.Governments and c
3、ompanies rely on space for critical services and benefits,including defense and national security activities related to positioning,navigation,and timing;satellite communications;internet service;television and cable broadcasting;international financial transactions;remote Earth sensing;weather moni
4、toring and prediction;and scientific exploration and experimentation.Unfortunately,the growing number of objects in orbit has significantly increased the potential for overcrowding,debris creation,and,ultimately,collisions as the most-useful orbital altitudes steadily approach their carrying capacit
5、ies.Space operators must maneuver their satellites to avoid potential collisions,which imposes additional fuel costs and shortens the life span of the satellites.These shortened life spans not only increase costs but also result in added debris if the defunct satellites cannot be disposed of sustain
6、ably.Moreover,studies estimate that tens of thousands of additional satellites will likely be launched into low earth orbit by 2030,which would further increase the risk of collisions and threaten the sustainable use of Earths orbits.The New Space Era has brought significant advancements in security
7、,connectivity,prosperity,and collective action.But this growth comes with substantial and increasingly urgent challenges.Along with the expanding number of space objects and activities,new types of near-Earth operations,such as megaconstellations of satellites,space tourism,on-orbit servicing and ma
8、nufacturing,space tugs,active debris removal,and just-in-time and artificial intelligencedriven collision avoidance maneuvers,have complicated the space domain,resulting in an orbital environment that is substantially more congested and risky.2To provide clarity to the ongoing space traffic solution
9、 debates,RAND researchers reviewed the literature and conducted workshops with international experts from government,academia,research organizations,and industry to better understand the leading conceptions of the space traffic problem and identify possible solutions.The findings from the literature
10、 review and workshops helped the research team determine the most-advantageous features of a potential international space traffic management(STM)system and the optimal and most-feasible pathways to implement that system going forward.STM IS A GOVERNANCE CHALLENGE MORE THAN A TECHNICAL ONEResearch a
11、nd analysis show that STM is primarily a governance challenge rather than a technical one.To operate safely and sustainably in space,operators must coordinate and communicate;exchange data and information;enable situational awareness;avoid,mitigate,and resolve conflict;and define processes and proce
12、dures to determine and adjudicate who will maneuver,when that maneuver will occur,and how the maneuver will be executed to ensure safety.Management of space objects is an informal,ad hoc,and often ill-coordinated process.But as orbital danger and complexity have increased in the New Space Era,so hav
13、e calls from academics,members of civil society,policymakers,and industry leaders for improved governance of space trafficparticularly on an international levelto ensure the continued safety and sustainability of the final frontier.Heightened awareness of STM needs and the urgency of worsening orbit
14、al conditions have escalated global space traffic debates from purely academic circles to the highest levels of government.STM is now an annual topic at United Nations Committee on the Peaceful Uses of Outer Space(UNCOPUOS)Legal Subcommittee proceedings.However,little agreement exists on what struct
15、ure international STM should eventually take or even what new steps,if any,should be taken in the short term in pursuit of reliable,global STM.A global system of space traffic management was defined by the International Academy of Astronautics in its 2006 study as a“set of technical and regulatory p
16、rovisions for promoting safe access into outer space,operations in outer space,and return from outer space to Earth free from physical or radiofrequency interference.”3FINDINGSThe World Is Approaching a Space Traffic Management Tipping Point It appears that the world is approaching a tipping point f
17、or STM.Chronologically,one could argue that space is already overdue for the creation of an international governance system.The rapid growth of the space domain,especially since the early 2000s,is reflective of the accelerating trends in technology and domain usage that catalyzed the development of
18、similar governance systems in the maritime and air domains,as shown in Figure 1.Furthermore,the research into the need for,process to implement,and options for STM organizations is already extensive.More than a dozen major conferences,reports,and papers published in the past 40 years have discussed
19、the necessity of an STM system and options for its implementation.At the same time,there remains a spectrum of views internationally regarding the feasibility and advisability of an actual international space traffic management organization(ISTMO),as shown in Figure 2.Some RAND workshop participants
20、 found the ISTMO concept more potentially feasible than did other participants.There was also a lack of consensus among participants on whether an ISTMO was an advisable solution.Overall,European experts SOURCE:Dan McCormick,Douglas C.Ligor,and Bruce McClintock,Cross-Domain Lessons for Space Traffic
21、 Management:An Analysis of Air and Maritime Treaty Governance Mechanisms,RAND Corporation,RR-A2208-2,2023,p.10.NOTES:IMO=International Maritime Organization;UNCLOS=United Nations Conference on the Law of the Sea;ICAO=International Civil Aviation Organization;UN=United Nations;ICAN=International Comm
22、ission for Air Navigation;UNCOPUOS=United Nations Committee on the Peaceful Uses of Outer Space;OST=Outer Space Treaty;GGE=Group of Governmental Experts;TCBM=transparency and confidence-building measure.FIGURE 1 Maritime,Air,and Space Governance Development Timelines1947ICAO becomesUN SpecializedAge
23、ncy1926U.S.Air Commerce Act1903Firstpoweredflight1919ParisConvention,ICAN1944ChicagoConventionICAO1948SecondICAOAssembly1958UNCLOS I1948Conventioncreating theIMO1930HagueConference1609GrotiussMareLiberium1702van Bynkers “cannon-shot rule”1945TrumanProclamations1952SantiagoDeclaration1960UNCLOS II198
24、2UNCLOS IIIadopted1973-1982UNCLOS IIIdebates1979MoonAgreement1972LiabilityConvention1961Firstcrewedspaceflight1957Firstsatellite inorbit1959UNCOPUOSestablished1967OSTadopted1975RegistrationConvention2013GGEreport onTCBMs4were the most optimistic about the feasibility and advisability of an ISTMO and
25、 U.S.experts were the most pessimistic.History in other domains and areas indicates that an international organization is likely to eventually emerge out of necessity and because the negative consequences of waitingsuch as a major collision or incidence of conflict in space resulting from an STM fai
26、lurewould be significant.A Future Space Traffic Management Governance System Needs Legitimacy to Endure and Be EffectiveFor an ISTMO to be successful,it must be chartered with a set of authorities to which the international community,particularly spacefaring nations,will defer.But those authorities
27、cannot be so broad or ill-defined that they create persistent opposition or lack of compliance.To effectively influence STM,member states must accept an ISTMOs exercise of authority related to space situational awareness(SSA)and STM measurement the institutionalization of STM expertise rules develop
28、ment and establishment via an accepted voting regime compliance and enforcement mechanisms building a strong bureaucratic organization that can deliver quality outputs conflict adjudication mechanisms.As shown in the cases of the International Maritime Organization(IMO)and the International Civil Av
29、iation Organization(ICAO),lasting intergovernmental organization(IGO)systems need data,information,and measurements that are reliable and trustworthy to ensure situational awareness,inform decisionmaking,and help resolve disputes.These characteristics can be achieved only if members of the IGO work
30、together on technical aspects.Moreover,successful IGOs have established and maintained domain expertise that informs rulemaking through sustained technical cooperation and collaboration.Finally,and perhaps most critically,ISTMO legitimacy will necessitate buy-in from key space powers,such as the Uni
31、ted States,China,and Russia;the inclusion of extant regional bodies,nonspacefaring nations,and low-and middle-income countries;and the eventual connection of all groups via an IGO structure.The air and maritime domains have shown how international norms and customs preceded the 0246810PositiveNeutra
32、lNegativeAdvisabilityNumber of participantsAsia PacificEuropeanUnited StatesPositiveNeutralNegativeFeasibilityFIGURE 2 Feasibility and Advisability Ratings from Workshop 5hard codification of actual regulations,a process that has been underway in the space domain since the 1950s.An ISTMO with strong
33、 legitimacy must be able to convert current norms of behavior and activities that support STM into a coherent body of rules and regulations by which space actors will abide.It is important to note that other international governance systems,such as the Internet Corporation for Assigned Names and Num
34、bers(ICANN)and the Society for Worldwide Interbank Financial Telecommunication(SWIFT)offer examples of IGOs that grew in new but legitimate ways.The space community should explore and consider such examples in its establishment of an ISTMO.Existing Activities Show That a Bottom-Up Approach Is Alread
35、y Underway for Space Traffic ManagementThe space community should learn from the past and find a way to make progress on the very likely future that includes an STM governance system.The recent emphasis of STM in various regions,such as the European Unions approach to STM,demonstrates that there mig
36、ht already be some movement toward broader STM governance structures.Leveraging the existing approach could be the optimal entry point for kick-starting an STM governance effort.It is important to note that bottom-up approaches require state-led governance efforts,such as the creation of bilateral o
37、r multilateral agreements and organizations.Evidence from the commercial spaceflight industry indicates that commercial or industry-led standard development efforts alone are unlikely to produce agreement on and implementation of regulatory standards.A Viable International System Requires Adequate E
38、xpertise and FundingManagement organizations in other domains have adequate member state participation and appropriate staffs and resources for the tasks assigned to them.ICAOs budget for 2020 to 2022 was 322 million(Canadian dollars),with a total staff of 908 individuals in 2021.IMOs budget for 202
39、1 was 44.29 million British pounds with a total staff of 320.The necessary budget and staffing level to effectively operate an ISTMO would need to be determined through further study.IMO and ICAO,which are primarily funded by member nations,could be starting points for this research.The goal should
40、be an international STM convention within the next five years that sets specific milestones for implementation within the next ten years.6Another potential starting point is the International Telecommunication Union,which has a total budget of$165 million and relies on fees paid by participating com
41、panies,nongovernmental organizations(NGOs),academic institutions,and member governments.As state buy-in grows,so will the level and amount of expertise required to run any new organization and to develop technical rules that will allow the eventual adjudication of conflicts and establishment of comp
42、liance mechanisms.RECOMMENDATIONSFour recommendations to jump-start the establishment of an ISTMO are described in the following sections.Key Space Powers Should Formally Start the Discussion to Establish an ISTMOThe time has passed to just study the problem of STM,and it is now time to convene the
43、appropriate organizations to decide on the path forward.The goal should be an international STM convention within the next five years that sets specific milestones for implementation within the next ten years.The time to actively develop STM is now,rather than waiting for the loss of key orbital she
44、lls because of collision-generated debris that limits the use of valuable orbits for decades or longer.Past studies and recommendations have been helpful but have not generated the necessary momentum for more-significant progress.Key space players could use the example of the UN Resolution 75/36 pro
45、cess to kick-start the international discussion and move from lower-level discussions to international discussions that avoid claims of lack of coordination or regional bias.Early discussions should include not only major space powers but also key regional stakeholders and representatives from nonsp
46、acefaring nations,industry,academia,and NGOs.Regional circles of trust(i.e.,groupings of allies or like-minded nations)can be the key input node for developing an ISTMO while maintaining participation and buy-in from nations that might not participate autonomously because of lack of resources or fea
47、r of marginalization from other multinational blocs.This start-in-the-middle approach could be employed to build SSA and STM capacity at the regional level before feeding into the ISTMO.The role of industry and NGOs is important because of the extensive contributions of both to the development of SS
48、A and STM technology,frameworks,and proposals.This approach would gain the full benefit of representation from diverse stakeholders,nations,and regions while mitigating potential capture of the ISTMO by elite,powerful,and well-resourced spacefaring nations and entities.The STM Convention Should Lear
49、n from Past SuccessesAlthough there is not one perfect model for an ISTMO,there are some clear best-practice considerations that should be incorporated.First,the organizational design should be cooperative,collaborative,and inclusive,and its creation and design should be based on consensus to ensure
50、 legitimacy.IMO and ICAO have participation from most states across the globe.Each has an assembly of all members and a council that draws membership from three categories to ensure diversity of representation.In both cases,the structures of the councils incorporate both geographic and financial int
51、erest diversity while having processes and procedures to bring about convergence and agreement on rules.Second,the actual creation of rules and enforcement should be driven by a process that is less restrictive to ensure representation but that also incorporates voting rules(e.g.,majority or weighte
52、d rules)to prevent gridlock.These voting rules will allow enforcement equality and ensure incorporation of diverse views.Both IMO and ICAO allow bottom-up development of rules and participation by nonstate actors,including private companies.An ISTMO should have similar structures and mechanisms buil
53、t into its committee,subcommittee,and working group processes to ensure that nonstate actors are effectively integrated.This integration is a critical element because nonstate actors,particularly in industry,are primary operators in space and will be able to provide the most-accurate data,informatio
54、n,analysis,and insights for governance decisionmaking.Civil society groups and academic experts also have important perspectives to offer.Moreover,these structures and mechanisms should allow not only for nonstate actor inputs but also industry feedback on current and proposed regulations or other 2
55、17used by IMO,ICAO,and International Telecommunication Union(ITU),apportion contribution amounts between their member states,and IMO specifically accounts for overall use of or access to the domain in determining contributions.An ISTMO could also consider nontraditional funding mechanisms,such as or
56、bital-use fees(OUFs)or tradeable satellite performance bonds(TSPBs).OUFs are effectively a tax on satellites,although the additional costs associated with the tax are smaller than the averted costs of continued debris accumulation,and they could provide a user-based funding mechanism for a future IS
57、TMO.Similarly,TSPBs are a market-based instrument for limiting the growth of space debris and incentivizing more-sustainable and more-efficient uses of orbital space.Like OUFs,TSPBs price the sustainability of orbital-use behaviors;more-sustainable behaviors incur lower costs.Although these are nasc
58、ent ideas,they are worthy of further study as the ISTMO concept is developed.CONCLUSIONIf space leaders do not begin the hard work of establishing an ISTMO soon,there is a significant chance that the world will lose key portions of its orbital resourcesreducing spaces overall value to humanity.Addit
59、ionally,beginning the work of establishing an ISTMO now might help reduce the possibility of future conflict in space.Rather than wait for a crisis to catalyze action,the space community should seize the moment and begin the work of building the governance structures needed to ensure the safety and
60、sustainability of critical space assets,services,and activities.Acting now will enable the international community to develop solutions for protecting and preserving space now and in the future.www.rand.orgRB-A1949-1aspects of governance to ensure relevance and encourage buy-in and long-term accepta
61、nce.Although the STM convention should be responsible for the STM organizational design,it should model that design around these characteristics to build on past successes and garner buy-in from both spacefaring and nonspacefaring nations.The Global Space Community Needs to Gather and Grow the Cadre
62、 of Experts to Staff an International Space Traffic Management OrganizationThe demonstrated value of technology as a tool to make interactions in a domain safer indicates that the ISTMO community will need to gather and grow a cadre of technical space experts.Institutionalized expertise is a key fac
63、tor in technology uptake and in the legitimacy,efficacy,and longevity of IGOs.Without sufficient expertise,ISTMO members are likely to ignore or be apathetic to ISTMO processes,decisions,and rulemaking.To create a centralized pool of expertise,any new international organization will need to have ade
64、quate staff size and be appropriately resourced to compensate experts.The STM convention should consider the organizational construct,size,and technical expertise needed for any future ISTMO.Future Research Should Consider Alternative Funding Mechanisms for an International Space Traffic Management
65、OrganizationConsidering the challenges that other international organizations have faced with state funding,there should be more research to identify potential alternative funding mechanisms for an ISTMO.Traditional models of funding,such as those 34This brief describes work done in the RAND Nationa
66、l Defense Research Institute and documented in International Space Traffic Management:Charting a Course for Long-Term Sustainability,by Bruce McClintock,Douglas C.Ligor,Dan McCormick,Marissa Herron,Kotryna Jukneviciute,Thomas Van Bibber,Katie Feistel,Akhil Rao,Adi Rao,Taylor Grosso,Michael Fenner,Ha
67、njun Lee,Abdullah Ar Rafee,and Toms Urbina,RAND Corporation,RR-A1949-1,2023(available at www.rand.org/t/RRA1949-1).To view this brief online,visit www.rand.org/t/RBA1949-1.The RAND Corporation is a research organization that develops solutions to public policy challenges to help make communities thr
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