P22pWJw

L01 · TIČAN STATION
Status
GO
 
← sequence

Discovery

digest2 score100
V magnitude21.2
H magnitude23.7
Observations13
Arc1.920 d
Not seen0.87 d
NEOCP noteUpdated Sept. 13.27 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 H21 Astronomical Research Observatory, Westfield ×4
807 Cerro Tololo Observatory, La Serena ×3
F51 Pan-STARRS 1, Haleakala ×2
I41 Palomar Mountain--ZTF ×1

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 q1.0867 AU
Eccentricity e0.3850
Inclination27.6°
NEO-like yes
Scatteredness 6″ × 9″
Observed from L01 no

Tonight

Best altitude 51.0° at 23:00 UT
Exposure26.0 min
Window0 min
Alt / Az now 34.0° / 242.0°
Sky motion5.92″/min
Moon separation152°
Sun altitude-23°
Ephemeris rows16 of 18 usable
belowMask×1, nearSun×1

Sky-plane uncertainty

-4-4-2-22244+0″, +0″ — 582 of 2000 variants+0″, +1″ — 124 of 2000 variants-1″, +1″ — 307 of 2000 variants+0″, -1″ — 110 of 2000 variants+1″, -1″ — 331 of 2000 variants-1″, +2″ — 114 of 2000 variants-1″, +0″ — 36 of 2000 variants+1″, -2″ — 112 of 2000 variants+1″, +0″ — 55 of 2000 variants-2″, +2″ — 67 of 2000 variants+2″, -2″ — 75 of 2000 variants-2″, +3″ — 39 of 2000 variants+2″, -3″ — 27 of 2000 variants-2″, +1″ — 5 of 2000 variants-3″, +4″ — 3 of 2000 variants-3″, +3″ — 4 of 2000 variants+2″, -1″ — 3 of 2000 variants+3″, -3″ — 2 of 2000 variants-1″, +3″ — 1 of 2000 variants-2″, +4″ — 1 of 2000 variants+3″, -4″ — 1 of 2000 variants+3″, -5″ — 1 of 2000 variantsR.A. offset ″ → east leftDecl. offset ″
Variant orbits2000
Distinct positions 22
MPC rounds offsets to whole arcseconds — this cloud is small enough that the rounding dominates
Cloud extent ±3″ RA · ±5″ Dec
Scatteredness 6″ × 9″
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

* P22pWJw         score=100, obs=13, arc=1.92, notSeen=0.866days, obsExposure=26.0min, scatteredness=(6,9), q=1.086705, e=0.385
   mapLink=http://cgi.minorplanetcenter.net/cgi-bin/uncertaintymap.cgi?Obj=P22pWJw&JD=2461297.29167&Ext=VAR2&OC=L01&META=apm11
// 2026 09 13 2300   23 47 59.0 +06 30 44 168.5  21.2    6.00  321.3  352  +51   -41    0.09  154  -50
// 2026 09 14 0230   23 47 06.5 +06 47 02 168.4  21.2    5.92  321.5  062  +34   -23    0.10  152  -55
2026 09 14 0230   23 47 06.5 +06 47 02 168.4  21.2    5.92  321.5  062  +34   -23    0.10  152  -55