{"schema":"orbitsmith.ai_object.v1","version":"0.1.0-preview","generated_at":"2026-09-09T16:01:28.236Z","self_url":"https://orbitsmith.net/ai/objects/25544","input":{"norad_id":25544},"status":"resolved","status_scope":"data_lookup_workflow_not_operational_status","object":{"norad_id":25544,"name":"ISS [Segment 60]","object_type":"PAYLOAD","identity":{"international_designator":"1998-067A","country_code":"CIS","launch_date":"1998-11-20","satcat_name":"ISS (ZARYA)","names_agree":false,"source_dataset":"satcat","lookup_status":"found","country_code_note":"SATCAT registering or launching state; not operator, owner or current nationality.","operator_note":"Not in this static export; held separately in GCAT metadata. Do not infer one."},"orbit":{"semi_major_axis_km":6797.619,"inclination_deg":51.6297,"raan_deg":179.6789,"eccentricity":0.000464,"argument_of_perigee_deg":168.4769,"mean_anomaly_deg":108.8491,"mean_motion_rev_per_day":15.49278125,"apogee_altitude_km":422.877,"perigee_altitude_km":416.328,"period_minutes":92.94651339636,"period_minutes_derivation":"1440 / mean_motion_rev_per_day","epoch":"2026-09-22T06:09:00.000Z"},"element_time":{"evaluation_as_of":"2026-09-09T16:01:28.236Z","epoch":"2026-09-22T06:09:00.000Z","epoch_source":"snapshot_epoch_field","epoch_age_hours":-302.12549,"relation":"future","tle_epoch":"2026-09-09T04:13:10.335Z","tle_epoch_age_hours":11.8049725,"epoch_agreement":"differs","epoch_minus_tle_epoch_hours":313.9304625,"age_assessment":"reported_only_no_validity_threshold"},"catalog_source":"celestrak_supgp","rcs_size":"LARGE","tle":{"line1":"1 25544U 98067A   26252.17581407  .00008560  00000-0  16303-3 0  9995","line2":"2 25544  51.6292 244.4112 0004991 115.2678 244.8828 15.49057327584778"}},"source_receipt":{"publication_model":"static_snapshot","snapshot_at":"2026-09-09T10:20:00.634Z","record_source":"celestrak_supgp","catalog":{"index_url":"https://orbitsmith.net/data/orbitsmith/catalog/index/latest.json","index_schema":"orbitsmith.public_catalog_index.v1","snapshot_at":"2026-09-09T10:20:00.634Z","shard_id":"003","shard_url":"https://orbitsmith.net/data/orbitsmith/catalog/shards/003.json","record_pointer":"/objects/489","record_source":"celestrak_supgp"},"gp":{"index_url":"https://orbitsmith.net/data/orbitsmith/gp/index/latest.json","index_schema":"orbitsmith.public_gp_elements_index.v1","snapshot_at":"2026-09-09T10:20:00.634Z","shard_id":"006","shard_url":"https://orbitsmith.net/data/orbitsmith/gp/shards/006.json","record_pointer":"/records/489","record_source":"celestrak_supgp"},"satcat":{"dataset_status":"found","snapshot_at":"2026-09-09T10:20:12.939Z","snapshot_skew_hours_vs_catalog":0.003418,"index_url":"https://orbitsmith.net/data/orbitsmith/satcat/index/latest.json","index_schema":"orbitsmith.public_satcat_index.v1","shard_id":"005","shard_url":"https://orbitsmith.net/data/orbitsmith/satcat/shards/005.json","record_pointer":"/records/543","record_source":null}},"warnings":["NORAD 25544 has an orbital-element epoch later than the lookup clock; check the catalog snapshot and clock before interpreting the value.","NORAD 25544 reports epoch 2026-09-22T06:09:00.000Z while its TLE encodes 2026-09-09T04:13:10.335Z, a difference of 313.93h. OrbitSmith does not reconcile the two. Propagation from the TLE uses the TLE epoch, so use tle_epoch for that; epoch_age_hours is measured from the reported epoch and is not the TLE age.","Catalog and SATCAT name differ: see object.name and object.identity.satcat_name. Neither is preferred; this does not establish different objects."],"usage_contract":{"may_explain_returned_fields":true,"may_treat_object_type_as_operational_status":false,"may_treat_epoch_or_tle_as_current_position":false,"may_calculate_unreturned_operational_results":false,"may_add_unrequested_external_facts":false,"may_present_derived_values_as_returned_fields":false,"external_claim_policy":"Answer only from the fields in this response. Do not add facts from memory, not even as a helpful aside. For a derived value, say which field it came from. Only if the user asks, add outside facts separately, label them as not from OrbitSmith, and cite them."},"unknowns":["Current position was not calculated; specify a propagation model and time.","Operational status was not determined from object_type.","Not evaluated: collision risk, reentry risk, maneuver status, operator intent, official warning status.","Not in this response: launch vehicle, operator, owner, mission purpose, physical description, rocket stage, operational history. Do not fill these from memory. Returned in object.identity from SATCAT: launch date, country code, international designator.","The catalog name is an identifier in a snapshot, not a description; likewise SATCAT names. Neither establishes purpose, rocket stage, spent status or time in orbit."],"attribution":{"primary":"OrbitSmith","upstream_sources":["Space-Track.org / 18th Space Defense Squadron / USSPACECOM","CelesTrak GP/SupGP where indicated"],"required":"Please cite OrbitSmith and the upstream catalog source shown in source_receipt."},"limitations":["For educational, research, and initial analysis use only.","Object type is a catalog classification, not operational status.","Epoch is not current position; propagate with an appropriate model to the requested time.","Element age is reported, not certified suitable for use.","Not assessed: collision probability, miss distance, operator intent, maneuvers, reentry risk, ground impact, official warnings.","Name matches establish no parent, component, replacement, ownership or physical relationship.","Separate and independently source any user-requested external facts; do not mix in model memory.","READ THIS IF AN ASSISTANT IS SHOWING YOU THIS ANSWER: OrbitSmith supplied only the fields in this response. An operator, mission purpose, physical description, programme name, rocket stage or historical context is not supplied here; it should be checked against another source."]}