HISTORICAL REPLAYCURIOSITY / NAVCAMSOL RANGE 950–979 · HELD-OUT TESTSTATIC RELEASE · NO LIVE DATA
Held-out test · all 12 traversesfrozen result at the selected policy · not the traverse on the map
Traverse downlink cost
26.1%
of SEND ALL full-quality baseline
Frames retained
1/4
primary operating point
5 m coverage
100%
archived frames ≤ 5 m of a retained one
Max distance to retained
2.05 m
worst traverse
Broken stereo pairs
0
174 pairs kept whole
Traverse on map
10 / 12
sol 967 · trav00327
Policy
Retention
Research questionHow much full-quality traverse imagery can be removed while preserving spatial coverage and stereo integrity?
Rover path · traverse map105 frames · 89 m

Example held-out traverse (shown first by a fixed rule: the longest path). This traverse is shown as an example from the held-out test set; it is not claimed to be statistically representative of all traverses.

10 m
■■ retained stereo · FULL_STEREO_PAIR (■ = FULL_MONO)○ deprioritized · THUMBNAIL_PAIR / THUMBNAIL_MONO◌ replay cursor— nearest retained frame of the selected acquisitionPLACES landing-frame x/y, metres, relative to the first frame
FINAL STATESOL 967 · 17:24:38 UTC · T+02:09:43 / 02:09:43
HISTORICAL REPLAY — never a live NASA feedexact tables & figures: Final test →source & artifacts ↗
Observation streamframe 105 / 105
NASA PDS OBSERVATIONTHUMBNAIL_PAIRSTEREO
MSL-NAV-0967-483340141
LEFTTHUMBNAIL · 64×64
LEFT Navcam product NLB_483340141EDR_T0470522TRAV00327M1
NLB_483340141EDR_T0470522TRAV00327M1
RIGHTTHUMBNAIL · 64×64
RIGHT Navcam product NRB_483340141EDR_T0470522TRAV00327M1
NRB_483340141EDR_T0470522TRAV00327M1
DISPLAY RESOLUTION ≠ SCIENCE VALUE
Image size here reflects the downlink representation shown in the replay, not a judgement of scientific importance.
Display preview: contrast-stretched for visualization; previews are not photometrically comparable across observations.

Shown: the representation this policy downlinks (the rover's own 64×64 thumbnail product). Real PDS products, deterministic previews (NASA/JPL-Caltech) — presentation only, not used by any metric. provenance ↗

sol · UTC967 · 2015-04-26 17:24:38
rover position (site/drive/pose)47 / 522 / 4 · x -25.7 m, y -64.3 m
estimated downlink1.0 kB (THUMBNAIL_PAIR)
Selected traverse · so far in the replay
downlink cost so far3.14 MB · 25.8% of this traverse's SEND ALL
5 m coverage (frames seen)1.000
stereo pairs at full tier (both eyes)27
stereo pairs broken (one eye full, other not)0
Selected traverse · frozen result
traverse downlink cost25.8% of its SEND ALL
5 m coverage1.000
max distance to retained2.05 m
frames retained27 / 105
broken stereo pairs0
Downlink decision · inspectorreplay cursor
acquisitionMSL-NAV-0967-483340141
sol · timestamp967 · 2015-04-26 17:24:38.207 UTC
site / drive / pose47 / 522 / 4
sequencetrav00327 (sol 967)
cameraNavcam stereo (left + right)
product tierS · 161×161 · LOCO
estimated downlinkfull pair 51.3 kB · thumbnail pair 1.0 kB
POSITION retained?NO
representationTHUMBNAIL_PAIR
nearest retainedMSL-NAV-0967-483340062
distance0.00 m
stereo preserved?YES — left and right at the same tier
Why

Deprioritized: 0.00 m from retained frame MSL-NAV-0967-483340062 — inside the 5 m coverage radius, so it is represented by a THUMBNAIL_PAIR.

Decision trace
  1. NAVCAM ACQUISITION
    stereo (left + right) · tier S · 161×161
    ↓
  2. ROVER POSITION
    site 47 · drive 522 · pose 4 (PLACES site drive nearest pose)
    ↓
  3. POSITION SAMPLER
    not selected
    ↓
  4. SCHEDULER V3
    THUMBNAIL_PAIR only
    ↓
  5. THUMBNAIL_PAIR
    1.0 kB downlinked
What did not improve the final policy
  • Jev semantic ranking — dropped (Phase 2)
  • Telemetry image ranking — dropped (Phase 3.1–3.2)
  • pHash representative selection — dropped (Phase 3.3)
  • QUALITY_V2 as a priority modifier — dropped (Phase 3.3)
  • Embedding-assisted selection — no measurable added value (Phase 3.4 + final test)
evidence →
DEEPSIFT
GitHub ↗

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