P22pRlI

L01 · TIČAN STATION
Status
GO
 
← sequence

Discovery

digest2 score86
V magnitude20.8
H magnitude26.1
Observations13
Arc2.970 d
Not seen0.80 d
NEOCP noteUpdated Sept. 13.35 UT
MPC markers none

Who observed it

Discovered by F52
Pan-STARRS 2, Haleakala
Telescope1.8-m Ritchey-Chretien + CCD
Usual observersJ. Herman, T. Lowe, P. Minguez, A. Schultz, I. Smith
Usual measurersK. Chambers, T. de Boer, J. Fairlamb, H. Gao, M. Huber, C.-C. Lin E. Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk
Follow-up from 807 Cerro Tololo Observatory, La Serena ×4
I41 Palomar Mountain--ZTF ×2
F51 Pan-STARRS 1, Haleakala ×2
H36 Sandlot Observatory, Scranton ×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 q0.9154 AU
Eccentricity e0.2700
Inclination1.2°
NEO-like yes
Scatteredness 2″ × 4″
Observed from L01 no

Tonight

Best altitude 34.0° at 23:30 UT
Exposure24.0 min
Window0 min
Alt / Az now 30.0° / 207.0°
Sky motion3.35″/min
Moon separation150°
Sun altitude-31°
Ephemeris rows10 of 13 usable
belowMask×3

Sky-plane uncertainty

-2-2-1-11122+0″, +0″ — 1206 of 2000 variants+1″, -1″ — 108 of 2000 variants+0″, -1″ — 122 of 2000 variants-1″, +0″ — 153 of 2000 variants+1″, +0″ — 81 of 2000 variants+0″, +1″ — 138 of 2000 variants-1″, +1″ — 189 of 2000 variants+1″, -2″ — 2 of 2000 variants-1″, +2″ — 1 of 2000 variantsR.A. offset ″ → east leftDecl. offset ″
Variant orbits2000
Distinct positions 9
MPC rounds offsets to whole arcseconds — this cloud is small enough that the rounding dominates
Cloud extent ±1″ RA · ±2″ Dec
Scatteredness 2″ × 4″
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

* P22pRlI         score=86, obs=13, arc=2.97, notSeen=0.8days, obsExposure=24.0min, scatteredness=(2,4), q=0.91542, e=0.27
   mapLink=http://cgi.minorplanetcenter.net/cgi-bin/uncertaintymap.cgi?Obj=P22pRlI&JD=2461297.37500&Ext=VAR2&OC=L01&META=apm11
// 2026 09 13 2330   00 23 54.9 -10 37 31 164.1  20.8    3.31  115.0  352  +34   -41    0.09  151  -53
// 2026 09 14 0130   00 24 19.4 -10 40 17 164.0  20.8    3.35  114.0  027  +30   -31    0.10  150  -59
2026 09 14 0130   00 24 19.4 -10 40 17 164.0  20.8    3.35  114.0  027  +30   -31    0.10  150  -59