P22pRlF

L01 · TIČAN STATION

Status

Discovery

digest2 score	100
V magnitude	21.4
H magnitude	22.9
Observations	6
Arc	0.150 d
Not seen	2.56 d
NEOCP note	Updated Sept. 13.22 UT
MPC markers	none

Who observed it

Discovered by	F52 Pan-STARRS 2, Haleakala
Telescope	1.8-m Ritchey-Chretien + CCD
Usual observers	J. Herman, T. Lowe, P. Minguez, A. Schultz, I. Smith
Usual measurers	K. Chambers, T. de Boer, J. Fairlamb, H. Gao, M. Huber, C.-C. Lin E. Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk
Follow-up from	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 q	1.2441 AU
Eccentricity e	0.2030
Inclination	25.7°
NEO-like	yes
Scatteredness	1795″ × 1917″ wide
Observed from L01	no

Tonight

Best altitude	34.0° at 22:30 UT
Exposure	27.0 min
Window	0 min
Alt / Az now	30.0° / 205.0°
Sky motion	3.61″/min
Moon separation	135°
Sun altitude	-39°
Ephemeris rows	9 of 12 usable belowMask×3

Sky-plane uncertainty

Variant orbits	2000
Distinct positions	1907
Cloud extent	±1049″ RA · ±1061″ Dec
Scatteredness	1795″ × 1917″
L01 field	2600″ × 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

* P22pRlF         score=100, obs=6, arc=0.15, notSeen=2.562days, obsExposure=27.0min, scatteredness=(1795,1917), q=1.244117, e=0.203
   mapLink=http://cgi.minorplanetcenter.net/cgi-bin/uncertaintymap.cgi?Obj=P22pRlF&JD=2461297.333333&Ext=VAR&OC=L01&META=apm11
// 2026 09 13 2230   23 00 04.2 -11 11 09 170.1  21.4    3.60  315.5  359  +34   -41    0.09  136  -45
// 2026 09 14 0000   22 59 48.8 -11 07 18 170.0  21.4    3.61  315.7  025  +30   -39    0.09  135  -56
2026 09 14 0000   22 59 48.8 -11 07 18 170.0  21.4    3.61  315.7  025  +30   -39    0.09  135  -56