Survey data & QC → SDSS
SDSS DR18
Legacy/superseded pipeline record retained for methodology and archive context. Historical candidate counts and classifications are unreconciled, are not current discovery results, and do not provide evidence for a bounce.
Key findings
01 Historical, unreconciled pipeline output — 77,905 cross-transfer anomalies (domain-shift inflation vs DESI)
02 Historical, unreconciled pipeline output — Path-C native retrain: only 12 sources at S>5 (~6500x reduction)
03 Historical, unreconciled pipeline output — Native top-1% (19,253 at S>=0.2051) is SIMBAD novelty pool
04 Historical, unreconciled pipeline output — Ultra-cool dwarfs (M7, T2, L3) dominate cross-transfer catalog
05 Historical, unreconciled pipeline output — 3 SDSS × DESI 5-arcsec positional coincidences
Pipeline
| Field | Value |
|---|---|
| Model | DESI BigAE transfer (cross-transfer baseline) + native BigAE retrain (val_loss=0.0311) |
| Wavelength | Optical spectroscopy (3800-9200 Å) |
| Cost | ~$10 |
| Runtime | ~2.8h |
Follow-up queue
No current follow-up is implied by this legacy/superseded record.