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Early warning for newly discovered comets and unconfirmed objects.

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P/2001 R6

P/2001 R6 (LINEAR-Skiff)

CometClass Ecatalogued
Southern hemisphere

Difficult — CCD / large telescope. Around mag 15.1. A large amateur CCD or a professional telescope is required. Historic peak was mag 12.9.

Active comet in COBS

JSONCSV

Right ascension

19h 15m 43s

J2000

Declination

−40° 55′ 14″

J2000

Estimated magnitude

15.1

CCD / citizen telescope · COBS consensus

Confidence

33

Class E · priority 66

Observations

42

80.00 d arc

Last observation

8d ago

Tue, 08 Sep 2026 19:57:21 GMT · COBS consensus

Perihelion

2018-10-04

2.190 au

Peak window

2018-10-01 → 2018-10-16

COBS peak mag 12.9 on 2018-10-13 · perihelion 2018-10-04. Window is those dates ±3 days — not a light-curve fit.

Historic peak

12.9

COBS / analyzed peak 2018-10-13

Catalog ingest

14m ago

Venator last wrote this row 2026-09-16 22:00:03 UTC

Light curve

Brightness over time (V mag)

Gold = reported observations. Steel dashed family = ensemble (nominal / outburst / fade / disruption).

Tail length

Converted to degrees from COBS (d / arcmin / arcsec). Empty until analysis has pulled the archive.

No tail measures stored yet for this object.

Ensemble is a first-pass H0/n photometric model plus observed samples — not a trained ML forecast yet. The background analyzer walks the catalog one object at a time so COBS is not flooded. Disruption track rises after perihelion to stand in for solar-wind stripping.

Orbital elements

q

2.190 au

e

0.4760

i

17.40°

Ω

67.30°

ω

308.00°

a

4.180 au

MOID

—

H

—

H0 / n

9.0 / 4

NEO score

—

PHA score

—

RMS

—

Elongation

110°

Reporting sources

  • COBS comet list

    ok

    Comet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).

  • COBS orbits

    ok

    Osculating elements and photometric parameters (H0, n) for active comets.

Name history

  • P/2001 R6 (LINEAR-Skiff)

    Informal: LINEAR-Skiff

    P/2001 R6 · 2026-09-08 02:09:56 UTC → current

Discoverers

  • LINEAR

    Discoverer · parsed-name · 2026-09-15 02:51:49 UTC → current

  • LINEAR-Skiff

    Discoverer · parsed-name · 2026-09-15 02:51:49 UTC → current

  • Skiff

    Discoverer · parsed-name · 2026-09-15 02:51:49 UTC → current

  • LINEAR-Skiff

    Discoverer · parsed-name · 2026-09-08 17:27:23 UTC → 2026-09-15 02:51:49 UTC

Contributors

  • No recent COBS visual or CCD reports linked yet.

Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.