CERW3K2

L01 · TIČAN STATION
Status
GO

Discovery

digest2 score98
V magnitude21.3
H magnitude26.3
Observations16
Arc0.260 d
Not seen0.62 d
NEOCP noteUpdated Sept. 13.72 UT
MPC markers none

Who observed it

Discovered by G96
University of Arizona Mt. Lemmon Survey
Telescope1.5-m reflector + 4K CCD
Usual measurersT. Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls A. R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C. Shelly K. W. Wierzchos
Follow-up from F52 Pan-STARRS 2, Haleakala ×4
673 Table Mountain Observatory, Wrightwood ×2
F51 Pan-STARRS 1, Haleakala ×2

Names are the people who usually observe at that site, from Project Pluto's tables. MPC's astrometry records only the observatory code, never the individual, so these are not the observer of this particular object. Automated surveys list a telescope and no people.

Orbit

Perihelion q0.9281 AU
Eccentricity e0.2430
Inclination7.0°
NEO-like yes
Scatteredness 10″ × 6″
Observed from L01 no

Tonight

Best altitude 57.0° at 21:00 UT
Exposure26.0 min
Window0 min
Alt / Az now 40.0° / 244.0°
Sky motion3.25″/min
Moon separation128°
Sun altitude-37°
Ephemeris rows12 of 19 usable
nearSun×4, belowMask×3

Sky-plane uncertainty

-6-6-4-4-2-2224466+0″, +0″ — 257 of 2000 variants-1″, -1″ — 119 of 2000 variants-1″, +0″ — 219 of 2000 variants+0″, -1″ — 118 of 2000 variants+1″, +0″ — 136 of 2000 variants-2″, +0″ — 126 of 2000 variants-1″, +1″ — 94 of 2000 variants+0″, +1″ — 132 of 2000 variants-2″, -1″ — 131 of 2000 variants+1″, +1″ — 112 of 2000 variants-1″, -2″ — 26 of 2000 variants+0″, -2″ — 23 of 2000 variants-2″, -2″ — 24 of 2000 variants+1″, -1″ — 37 of 2000 variants+0″, +2″ — 17 of 2000 variants+1″, +2″ — 23 of 2000 variants-2″, +1″ — 43 of 2000 variants-1″, +2″ — 14 of 2000 variants-3″, +0″ — 52 of 2000 variants+1″, -2″ — 6 of 2000 variants+2″, +0″ — 61 of 2000 variants+2″, +1″ — 39 of 2000 variants-3″, -1″ — 59 of 2000 variants+2″, -1″ — 14 of 2000 variants+2″, +2″ — 8 of 2000 variants-3″, +1″ — 13 of 2000 variants+0″, -3″ — 2 of 2000 variants-3″, -2″ — 15 of 2000 variants-2″, +2″ — 2 of 2000 variants+2″, -2″ — 1 of 2000 variants-3″, -3″ — 2 of 2000 variants+3″, +1″ — 17 of 2000 variants+3″, +0″ — 7 of 2000 variants-1″, -3″ — 2 of 2000 variants-4″, -1″ — 18 of 2000 variants+3″, +2″ — 1 of 2000 variants+1″, +3″ — 2 of 2000 variants-4″, +0″ — 8 of 2000 variants+3″, -1″ — 3 of 2000 variants-3″, +2″ — 1 of 2000 variants-4″, -2″ — 3 of 2000 variants-5″, -1″ — 4 of 2000 variants+3″, -2″ — 1 of 2000 variants-2″, +3″ — 1 of 2000 variants+4″, +0″ — 1 of 2000 variants-5″, -2″ — 1 of 2000 variants-5″, +0″ — 2 of 2000 variants+4″, +1″ — 1 of 2000 variants-6″, -1″ — 1 of 2000 variants-4″, +1″ — 1 of 2000 variantsR.A. offset ″ → east leftDecl. offset ″
Variant orbits2000
Distinct positions 50
MPC rounds offsets to whole arcseconds — this cloud is small enough that the rounding dominates
Cloud extent ±6″ RA · ±3″ Dec
Scatteredness 10″ × 6″
L01 field2600″ × 2600″
One pointing covers 100.0%

Drawn from MPC's own variant-orbit offsets, at the same epoch as their plot. Each orbit is one solution consistent with the observations so far; the ring marks the nominal position, and the field box appears only when it is comparable in size to the cloud.

Dot size shows how many variants share a position. MPC publishes these offsets rounded to whole arcseconds, so a tightly constrained object has thousands of orbits landing on a handful of grid points — their own picture is drawn from unrounded values and looks smoother. Sizing by count puts that density back rather than stacking invisible dots. Hover any dot for its share.

Plan entry

* CERW3K2         score=98, obs=16, arc=0.26, notSeen=0.62days, obsExposure=26.0min, scatteredness=(10,6), q=0.928082, e=0.243
   mapLink=http://cgi.minorplanetcenter.net/cgi-bin/uncertaintymap.cgi?Obj=CERW3K2&JD=2461297.208333&Ext=VAR&OC=L01&META=apm11
// 2026 09 13 2100   21 58 06.1 +12 21 47 152.9  21.2    3.31  039.6  346  +57   -34    0.08  130  -31
// 2026 09 14 0030   21 58 36.6 +12 30 26 152.9  21.2    3.25  042.6  064  +40   -37    0.09  128  -58
2026 09 14 0030   21 58 36.6 +12 30 26 152.9  21.2    3.25  042.6  064  +40   -37    0.09  128  -58