RECON: TNO occultation with 341275

Event between (341275) 07RG283 and star GA1140:03047347 with event index number of 1484022

Geocentric closest approach at 2026/02/13 09:15:49 UTC

J2000 position of star is 08:21:19.6 +24:35:00
Equinox of date position of star is 08:22:28.3 +24:31:16
Stellar brightness G=15.9, use SENSEUP=128
Star is 155 degrees from the moon. Moon is 17% illuminated.
TNO apparent brightness V=20.5

[RECON map]
TNO is 15.5 AU from the Sun and 14.6 AU from the Earth.
The TNO is moving 21.2 km/sec on the sky relative to the star, or, 7.2 arcsec/hr.
The 1-sigma error in the time of the event is 319 seconds.
The 1-sigma cross-track error in the shadow position is 5931 km.
The sky-plane scale is 10560.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 5.4 sec chord
Diameter=46.9 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 341275, (2026/02/13 09:16UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:55.0 +27:57:40  1.1  8.77 164
19Lam Cnc      08:22:05.1 +23:56:17  5.9  0.59 155
PPM 098584     08:20:42.3 +24:05:29  8.1  0.64 155
PPM 098623     08:22:50.6 +24:47:57  9.6  0.30 155
PPM 098620     08:22:46.1 +24:39:41 10.5  0.16 155
341275         08:22:52.9 +24:29:55 15.9       155
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 2.8 sigma about the mid-time.
The median site spacing is 22.0 km RECON observability=1.0 and success probability=7.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:13:53 -51.3 Dark Down 51.7 242.5 Up 08:58:53 - 09:28:53 3124
Summerland 09:13:52 -51.6 Dark Down 52.0 242.5 Up 08:58:52 - 09:28:52 3091
Penticton 09:13:52 -51.6 Dark Down 52.0 242.7 Up 08:58:52 - 09:28:52 3086
Okanagan Falls 09:13:52 -51.8 Dark Down 52.1 242.9 Up 08:58:52 - 09:28:52 3068
Oliver 09:13:51 -52.0 Dark Down 52.1 243.1 Up 08:58:51 - 09:28:51 3053
Anarchist Mountain Observatory 09:13:50 -52.1 Dark Down 52.1 243.5 Up 08:58:50 - 09:28:50 3040
Oroville 09:13:50 -52.1 Dark Down 52.2 243.5 Up 08:58:50 - 09:28:50 3032
Tonasket 09:13:50 -52.4 Dark Down 52.3 243.8 Up 08:58:50 - 09:28:50 3010
Okanogan 09:13:49 -52.7 Dark Down 52.5 244.0 Up 08:58:49 - 09:28:49 2975
Brewster 09:13:49 -53.0 Dark Down 52.8 244.1 Up 08:58:49 - 09:28:49 2946
Manson/Chelan 09:13:50 -53.3 Dark Down 53.1 243.9 Up 08:58:50 - 09:28:50 2919
Entiat 09:13:50 -53.5 Dark Down 53.2 244.1 Up 08:58:50 - 09:28:50 2897
Wenatchee 09:13:49 -53.8 Dark Down 53.4 244.3 Up 08:58:49 - 09:28:49 2871
Ellensburg 09:13:49 -54.2 Dark Down 53.7 244.6 Up 08:58:49 - 09:28:49 2827
Yakima 09:13:48 -54.6 Dark Down 53.9 245.0 Up 08:58:48 - 09:28:48 2787
Pasco 09:13:43 -54.5 Dark Down 53.1 247.0 Up 08:58:43 - 09:28:43 2782
Toppenish/White Swan 09:13:47 -54.7 Dark Down 53.9 245.5 Up 08:58:47 - 09:28:47 2769
PNWRO 09:13:42 -54.6 Dark Down 53.1 247.6 Up 08:58:42 - 09:28:42 2762
George/Umatilla 09:13:43 -54.8 Dark Down 53.4 247.2 Up 08:58:43 - 09:28:43 2745
Goldendale 09:13:47 -55.4 Dark Down 54.4 245.7 Up 08:58:47 - 09:28:47 2708
The Dalles 09:13:48 -55.7 Dark Down 54.7 245.6 Up 08:58:48 - 09:28:48 2679
Maupin 09:13:47 -56.0 Dark Down 54.8 246.2 Up 08:58:47 - 09:28:47 2640
Madras/Culver 09:13:46 -56.5 Dark Down 55.1 246.9 Up 08:58:46 - 09:28:46 2585
Redmond 09:13:45 -56.9 Dark Down 55.2 247.3 Up 08:58:45 - 09:28:45 2549
Sisters 09:13:46 -57.0 Dark Down 55.5 246.9 Up 08:58:46 - 09:28:46 2544
Bend 09:13:45 -57.1 Dark Down 55.4 247.5 Up 08:58:45 - 09:28:45 2525
Niwot 09:12:50 -52.7 Dark Down 44.8 266.0 Up 08:57:50 - 09:27:50 2510
Oregon Observatory 09:13:45 -57.3 Dark Down 55.6 247.5 Up 08:58:45 - 09:28:45 2505
SwRI 09:12:50 -52.9 Dark Down 44.9 266.0 Up 08:57:50 - 09:27:50 2498
La Pine/Gilchrist 09:13:45 -57.5 Dark Down 55.7 247.8 Up 08:58:45 - 09:28:45 2484
North Lake 09:13:42 -57.7 Dark Down 55.4 249.0 Up 08:58:42 - 09:28:42 2452
Paisley 09:13:40 -58.1 Dark Down 55.4 250.1 Up 08:58:40 - 09:28:40 2404
Chiloquin 09:13:44 -58.6 Dark Down 56.3 248.9 Up 08:58:44 - 09:28:44 2366
Lakeview 09:13:38 -58.5 Dark Down 55.4 251.0 Up 08:58:38 - 09:28:38 2357
Klamath Falls 09:13:43 -58.9 Dark Down 56.4 249.5 Up 08:58:43 - 09:28:43 2333
Tulelake 09:13:41 -59.1 Dark Down 56.3 250.2 Up 08:58:41 - 09:28:41 2312
Cedarville 09:13:36 -59.0 Dark Down 55.5 252.1 Up 08:58:36 - 09:28:36 2295
Fall River/Burney 09:13:39 -59.9 Dark Down 56.5 251.5 Up 08:58:39 - 09:28:39 2222
Susanville 09:13:36 -60.2 Dark Down 56.2 253.2 Up 08:58:36 - 09:28:36 2173
Gimple 09:13:36 -60.5 Dark Down 56.4 253.3 Up 08:58:36 - 09:28:36 2140
Greenville 09:13:36 -60.5 Dark Down 56.5 253.3 Up 08:58:36 - 09:28:36 2139
Quincy 09:13:36 -60.7 Dark Down 56.6 253.6 Up 08:58:36 - 09:28:36 2118
Portola 09:13:34 -60.6 Dark Down 56.2 254.2 Up 08:58:34 - 09:28:34 2115
Reno 09:13:31 -60.6 Dark Down 55.8 255.2 Up 08:58:31 - 09:28:31 2101
Carson City 09:13:31 -60.9 Dark Down 55.9 255.7 Up 08:58:31 - 09:28:31 2065
Yerington 09:13:28 -60.8 Dark Down 55.5 256.5 Up 08:58:28 - 09:28:28 2059
Gardnerville 09:13:30 -61.1 Dark Down 55.9 256.1 Up 08:58:30 - 09:28:30 2041
Hawthorne 09:13:25 -61.0 Dark Down 55.2 257.7 Up 08:58:25 - 09:28:25 2023
Tonopah 09:13:20 -60.7 Dark Down 54.2 259.5 Up 08:58:20 - 09:28:20 2007
Lee Vining 09:13:26 -61.7 Dark Down 55.7 258.0 Up 08:58:26 - 09:28:26 1955
Bishop 09:13:23 -61.8 Dark Down 55.3 259.5 Up 08:58:23 - 09:28:23 1909
Beatty 09:13:16 -61.4 Dark Down 54.1 261.4 Up 08:58:16 - 09:28:16 1899
Indian Springs 09:13:12 -61.1 Dark Down 53.3 262.6 Up 08:58:12 - 09:28:12 1891
Henderson 09:13:09 -61.2 Dark Down 52.8 263.8 Up 08:58:09 - 09:28:09 1853
Lone Pine 09:13:20 -62.3 Dark Down 55.1 260.8 Up 08:58:20 - 09:28:20 1839
Patrick 09:13:04 -61.0 Dark Down 52.0 265.4 Up 08:58:04 - 09:28:04 1816
DCO 09:13:01 -60.8 Dark Down 51.4 266.2 Up 08:58:01 - 09:28:01 1803
Searchlight/Boulder City 09:13:08 -61.5 Dark Down 52.8 264.6 Up 08:58:08 - 09:28:08 1795
Kingman/Dolan Springs 09:13:04 -61.2 Dark Down 52.1 265.6 Up 08:58:04 - 09:28:04 1789
Laughlin/Bullhead City 09:13:06 -61.6 Dark Down 52.5 265.2 Up 08:58:06 - 09:28:06 1773
Mohave Valley 09:13:05 -61.7 Dark Down 52.6 265.6 Up 08:58:05 - 09:28:05 1746
Lake Havasu City 09:13:04 -61.9 Dark Down 52.4 266.3 Up 08:58:04 - 09:28:04 1711
Parker 09:13:03 -62.1 Dark Down 52.4 266.8 Up 08:58:03 - 09:28:03 1675
CPSLO 09:13:27 -64.6 Dark Down 57.4 260.7 Up 08:58:27 - 09:28:27 1647
Blythe 09:13:03 -62.7 Dark Down 52.7 267.3 Up 08:58:03 - 09:28:03 1614
Idyllwild 09:13:10 -63.8 Dark Down 54.4 265.8 Up 08:58:10 - 09:28:10 1573
Wildwood 09:13:17 -64.5 Dark Down 55.9 264.0 Up 08:58:17 - 09:28:17 1566
Calipatria 09:13:05 -63.6 Dark Down 53.5 267.3 Up 08:58:05 - 09:28:05 1539
Yuma 09:13:01 -63.3 Dark Down 52.7 268.4 Up 08:58:01 - 09:28:01 1517

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 341275, (2026/02/13 09:16UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1  8.77 164
19Lam Cnc      08:20:32.1 +24:01:20  5.9  0.59 155
PPM 098584     08:19:09.2 +24:10:29  8.1  0.64 155
PPM 098623     08:21:17.1 +24:53:01  9.6  0.30 155
PPM 098620     08:21:12.8 +24:44:45 10.5  0.16 155
341275         08:21:19.6 +24:35:00 15.9       155
Positions are for J2000

Event circumstances last updated at 2019/03/25 01:27:56 UT

Marc W. Buie, Southwest Research Institute

RECON