Perseverance

Measured quantities

Each row carries its own uncertainty and its own source. Where a row says no uncertainty is published, that is what the catalogue says — it is not a claim that the value is exact.

Trajectory, leg by leg

This object's parent frame changes over its life. Each leg names the frame it is expressed in and the source arc it came from. A leg with no geometry is a declared gap — the registry holds no path across it and draws none. This object has 202 legs; the table shows the first and last 12 and counts the rest.

Classification

The catalogue's own note

S45983 #45983 2020-052A · JPL/US · mfr LMSSD · bus Mars · op EEO · tot 3965 kg · category PLAN · class C · program Mars Program · a/e/i GCAT; Ω,ω,M₀ not in GCAT → placeholder spread (ω = 0; display only) [GCAT] · position from horizons (rank 3); hcocat also covers this period and is not retained, because it is the lower class (rank 1) — the not-retained set is hcocat epoch 2020-08-03, a=1.3275 au e=0.2369 i=2.10°, covering 2020-08-03..2021-02-14 [JPL Horizons] · carries an on-board nuclear power source [nuclear: rtg unspecified]: nuclear power source (device not named by the source) + 1 × MMRTG — declared by UN Online Index of Objects Launched into Outer Space (UNOOSA) + NASA Radioisotope Power Systems Program (NASA/DOE) (A/AC.105/1233) · decides on board [autonomy: terrain-relative-navigation hazard-detection-avoidance]: locates itself by matching the terrain it sees · picks its own safe landing point — Lander Vision System — Matched its own descent images against an onboard orthomap to fix its position, then chose a reachable landing target from that fix during the descent itself. [Nelessen et al. 2019] Terrain-Relative Navigation / Safe Target Selection — Ranked candidate landing targets by hazard from its own position fix and diverted to a safe one, a decision no ground loop could have made in time. [Nelessen et al. 2019]

Reproduced as the source wrote it. Author-year citations link to their DOI where one is registered.

What this registry does not know about it

These are absences in the catalogues aggregated here, not measurements of zero, and not statements that the quantity is unknown to science:

• no temperature
• no published uncertainty on any value

Where this record comes from

This database remains the property of its owners and is reused under its own licence. If you quote a value from this page, name that database alongside SolarSystemRegistry.org.