Archive observatory · engine release v6.1.0

Small-BodyEphemerides

Find an asteroid or periodic comet by identity. Moira maps each body to the exact multi-body shard that carries its trajectory, with direct downloads, coverage boundaries, and full integrity receipts beside it.

Asteroids

9,974 bodies · 399 shards · 10-day sampling

2026.07.27.1

Periodic Comets

497 bodies · 20 shards · 30-day sampling

2026.07.28.1

6.1release index

Horizons vectorsType 13 · 419 shards

The evidence chain

Source, transformation, release

Each layer remains independently named

JPL Horizons vectors
Geometric Cartesian state vectors are the upstream trajectory authority.
Moira Type-13 materialization
Moira owns the sampling policy, interpolation materialization, sharding, and catalog metadata.
Immutable hosted release
Every filename is bound to a catalog version, direct URL, metadata receipt, and SHA-256 identity.

Catalog selector

Choose an orbit class.

Search the complete active catalog, then download the one physical shard containing your body. Catalog scope keeps colliding names and compatibility aliases explicit.

Active immutable release

Asteroids 2026.07.27.1

Published Jul 27, 2026

Released bodies: 9,974
Physical shards: 399
Sampling policy: 10-day step · 7-node window
Global requested span: 1600-01-01–2500-01-01
Declared release bytes: 17.1 GiB
Manifest identity: moira-asteroids
Catalog source revision: 464555b3-builder3b1434b1-targetec31e287

Manifest SHA-2560560302f877a46cebc550376ae70665fefab84801078181cf3c4199ce86d49d0

Sovereign manifestmanifest.jsonChecksum ledgerSHA256SUMSProvenance noticeNOTICE.mdRelease licenseLICENSE

The global span has 2 body-specific coverage exceptions. Each affected search result and shard is marked.

Body-first discovery

Find the body. We locate the shard.

Search canonical names and designations, asteroid or comet numbers, NAIF IDs, comet aliases, or any admitted asteroid family. A shard contains multiple bodies; the result names that physical download unit exactly.

Search Asteroids

Searches 9,974 generated release identities locally. No query is sent to JPL.

Release index ready

Try “Ceres,” “4,” “2000004,” “Vesta,” “Halley,” or “67P.”

Shard ledger · immutable release

Physical delivery units

399 complete shard receipts

Filter shard ledger

Page 1 of 34 · showing 1–12 of 399 shards

Published shard ledger for Asteroids
Shard	Representative contents	Bodies / size	Coverage	SHA-256	Artifacts
AST-000`asteroid_shard_000.bsp`	(1) Ceres – (25) Phocaea(1) Ceres · (2) Pallas · (25) Phocaea	2544.0 MiB	1600-01-01–2500-01-01	`8fd8fc5fe91815dea4dcd290206cdb0233637e5f9156c8bf40700c1b5266bbc2`	BSP Metadata
AST-001`asteroid_shard_001.bsp`	(26) Proserpina – (50) Virginia(26) Proserpina · (27) Euterpe · (50) Virginia	2544.0 MiB	1600-01-01–2500-01-01	`a2f556053639ef0f54ee8b4aa2a287cf016b024c89bd4fb4a85693d5c0c3022e`	BSP Metadata
AST-002`asteroid_shard_002.bsp`	(51) Nemausa – (75) Eurydike(51) Nemausa · (52) Europa · (75) Eurydike	2544.0 MiB	1600-01-01–2500-01-01	`82ba05ede57febf28c2b79f594f5db8455a65b9edd1f877edafddd8b4d248570`	BSP Metadata
AST-003`asteroid_shard_003.bsp`	(76) Freia – (100) Hekate(76) Freia · (77) Frigga · (100) Hekate	2544.0 MiB	1600-01-01–2500-01-01	`8d711cfa0366cac5efef0f745afd7fb4423790a7b98a8dadd6457fc78d2843cd`	BSP Metadata
AST-004`asteroid_shard_004.bsp`	(101) Helena – (125) Liberatrix(101) Helena · (102) Miriam · (125) Liberatrix	2544.0 MiB	1600-01-01–2500-01-01	`545cd293eaeba545416dc1a52d6e430104927739a16165bf94bf1d8571e1ebe3`	BSP Metadata
AST-005`asteroid_shard_005.bsp`	(126) Velleda – (150) Nuwa(126) Velleda · (127) Johanna · (150) Nuwa	2544.0 MiB	1600-01-01–2500-01-01	`6bdc4ec285c0d8a142b46fe902fc819c1ba17a47304575d8ab184f656978c75b`	BSP Metadata
AST-006`asteroid_shard_006.bsp`	(151) Abundantia – (175) Andromache(151) Abundantia · (152) Atala · (175) Andromache	2544.0 MiB	1600-01-01–2500-01-01	`b43284ae3081085a55946dc0b24f9faf05bb1cc34a1e8b88de7726e907bd5cb0`	BSP Metadata
AST-007`asteroid_shard_007.bsp`	(176) Iduna – (200) Dynamene(176) Iduna · (177) Irma · (200) Dynamene	2544.0 MiB	1600-01-01–2500-01-01	`90befebf45a67124cd9692443b9eebd7871bcd63c209d6b4cd40c49f43bb0fe3`	BSP Metadata
AST-008`asteroid_shard_008.bsp`	(201) Penelope – (225) Henrietta(201) Penelope · (202) Chryseis · (225) Henrietta	2544.0 MiB	1600-01-01–2500-01-01	`063a3992fa79b96b1136f06ba7edb31778e7bbd73752769bf062d0b149f3b263`	BSP Metadata
AST-009`asteroid_shard_009.bsp`	(226) Weringia – (250) Bettina(226) Weringia · (227) Philosophia · (250) Bettina	2544.0 MiB	1600-01-01–2500-01-01	`cf6d2f7bad0dbd8756463a9f95377318b188a75a27065631adb1845cffb1312c`	BSP Metadata
AST-010`asteroid_shard_010.bsp`	(251) Sophia – (275) Sapientia(251) Sophia · (252) Clementina · (275) Sapientia	2544.0 MiB	1600-01-01–2500-01-01	`d7ba14b9220e634e076a62ae3ea78e6328cfa44b03695d44fcdfe7a976955ed4`	BSP Metadata
AST-011`asteroid_shard_011.bsp`	(276) Adelheid – (300) Geraldina(276) Adelheid · (277) Elvira · (300) Geraldina	2544.0 MiB	1600-01-01–2500-01-01	`f0bfe0ae278d0f6ba7c26ae8d6f612a0f3e0a9f3b5c72153d6b6d309d6b89999`	BSP Metadata

Complete-catalog installation

The manifest is sovereign—but not sufficient alone.

A catalog is position-capable only when every BSP and every per-shard metadata file referenced by its sovereign manifest is present and verified against SHA256SUMS. Partial manifests are not admitted as complete catalogs.

manifestall BSP + metadataverify every receiptposition-capable

01 / manifest.json

Declares the immutable release identity, complete shard inventory, coverage, and body partition.

02 / BSP + metadata pairs

Every referenced binary and its matching per-shard metadata receipt must be installed.

03 / SHA256SUMS

Verifies each artifact before the local catalog can be treated as complete.

Method and provenance

Three evidence layers. No blurred ownership.

The release receipts preserve the boundary between upstream scientific authority, Moira-authored computation, and hosted artifact identity.

Layer 01 · source authority

JPL Horizons

Geometric Cartesian state vectors provide the upstream trajectory samples under explicitly named epochs, frames, and target identities.

Layer 02 · authored materialization

Moira Type-13 BSP

Moira owns the sampling schedule, Type-13 serialization, sharding, metadata, and interpolation policy. These files are Moira-generated BSPs, not official JPL or NAIF kernels.

Layer 03 · release identity

Immutable hosting

Published catalog versions bind filenames, coverage, metadata, direct URLs, and SHA-256 receipts into one release identity.

Software licensing

Moira’s authored code and included release materials are governed by the release’s MIT license and notice.

Scientific provenance

Upstream trajectory authority remains separately attributed; MIT licensing does not transfer authorship of JPL data to Moira.

Limits and responsible use

Receipts are not certainty.

01Orbit solutions can be superseded as new observations change a body’s fitted trajectory.
02Periodic-comet positions are apparition-sensitive because nongravitational outgassing forces can change the fitted path.
03An internal serialization round-trip proves file consistency, not external trajectory accuracy.
04These ephemerides are not for spacecraft navigation or any safety-critical use.

Release archive

Active identity above. Superseded history below.

Asteroids 2026.07.27.1

Active · 9,974 bodies · manifest 0560302f877a…

Open manifest

Periodic Comets 2026.07.28.1

Active · 497 bodies · manifest 31fbbedbb3ea…

Open manifest

Legacy · superseded

Kept for immutable history. Do not mistake these archives for the active catalogs above.

Asteroid archive 4.0.0Superseded release Periodic-comet archive 4.0.0Superseded release

Current release links are versioned and immutable; catalog installation truth is defined only by the sovereign manifest and its complete verified artifact set.