RECON: TNO occultation with 229762

Event between (229762) G!kun||'homdima and star GA0960:00959473 with event index number of 2299613

Geocentric closest approach at 2027/11/22 09:10:08 UTC

J2000 position of star is 05:48:16.3 +06:04:24
Equinox of date position of star is 05:49:34.5 +06:04:48
Stellar brightness G=13.6, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 80 degrees from the moon. Moon is 35% illuminated.
Apparent brightness V=19.5

[RECON map]
Object is 39.8 AU from the Sun and 38.9 AU from the Earth.
Apparent velocity is 21.6 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 92 seconds.
The 1-sigma cross-track error in the shadow position is 1496 km.
The sky-plane scale is 28224.2 km/arcsec.

The object has an absolute magnitude Hv=3.5
Diameter=1202.3 km assuming a 5% albedo -- 56.6 sec chord
Diameter=490.8 km assuming a 30% albedo -- 23.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 229762, (2027/11/22 09:10UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:41.0 +07:24:35  0.4  2.17  78
Bellatrix      05:26:37.7 +06:22:21  1.6  5.76  86
52 Ori         05:49:30.1 +06:27:42  5.5  0.39  80
PPM 149408     05:46:55.3 +06:18:26  7.0  0.74  81
PPM 149472     05:49:11.4 +05:53:30  8.8  0.24  80
PPM 149494     05:50:06.1 +06:06:09 10.6  0.09  80
229762         05:49:46.1 +06:04:51 13.6        79
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 5.0 sigma about the mid-time.
The median site spacing is 27.9 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 09:10:11 -55.4 Dark Up 44.8 167.7 Up 09:02:00 - 09:18:23 4760
Sleaford 09:09:25 -48.1 Dark Up 43.8 187.6 Up 09:01:14 - 09:17:37 4734
Kelowna 09:10:09 -55.7 Dark Up 45.7 168.8 Up 09:01:58 - 09:18:21 4688
Peachland 09:10:10 -55.9 Dark Up 45.8 168.3 Up 09:01:58 - 09:18:21 4683
Summerland 09:10:10 -56.0 Dark Up 45.9 168.4 Up 09:01:58 - 09:18:21 4670
Penticton 09:10:09 -56.0 Dark Up 46.0 168.6 Up 09:01:58 - 09:18:21 4664
Oliver 09:10:10 -56.2 Dark Up 46.4 168.5 Up 09:01:58 - 09:18:21 4636
Victoria 09:10:24 -58.2 Dark Up 46.4 162.9 Up 09:02:12 - 09:18:35 4625
Anarchist Mountain Observatory 09:10:10 -56.3 Dark Up 46.6 168.7 Up 09:01:58 - 09:18:21 4621
Okanogan 09:10:11 -56.9 Dark Up 47.2 168.3 Up 09:01:59 - 09:18:22 4571
Brewster 09:10:12 -57.2 Dark Up 47.4 167.9 Up 09:02:00 - 09:18:23 4552
Manson/Chelan 09:10:14 -57.5 Dark Up 47.6 167.4 Up 09:02:02 - 09:18:25 4539
Wenatchee 09:10:14 -57.9 Dark Up 48.0 167.0 Up 09:02:02 - 09:18:25 4503
Ellensburg 09:10:16 -58.4 Dark Up 48.4 166.6 Up 09:02:04 - 09:18:27 4472
Yakima 09:10:16 -58.7 Dark Up 48.8 166.5 Up 09:02:05 - 09:18:28 4438
Toppenish/White Swan 09:10:16 -58.8 Dark Up 49.0 166.7 Up 09:02:04 - 09:18:27 4419
PNWRO 09:10:11 -58.4 Dark Up 49.6 168.8 Up 09:01:59 - 09:18:22 4372
The Dalles 09:10:19 -59.7 Dark Up 49.6 165.3 Up 09:02:08 - 09:18:31 4363
Maupin 09:10:20 -60.0 Dark Up 50.0 165.3 Up 09:02:08 - 09:18:31 4327
Sisters 09:10:22 -60.9 Dark Up 50.8 164.3 Up 09:02:11 - 09:18:34 4259
Bend 09:10:22 -60.9 Dark Up 51.1 164.6 Up 09:02:10 - 09:18:33 4236
Oregon Observatory 09:10:22 -61.1 Dark Up 51.2 164.3 Up 09:02:10 - 09:18:33 4223
Chiloquin 09:10:25 -62.3 Dark Up 52.4 163.2 Up 09:02:14 - 09:18:37 4115
Klamath Falls 09:10:26 -62.5 Dark Up 52.8 163.2 Up 09:02:15 - 09:18:38 4084
Cedarville 09:10:20 -62.2 Dark Up 53.7 165.6 Up 09:02:08 - 09:18:31 4004
Fall River/Burney 09:10:25 -63.2 Dark Up 54.0 163.4 Up 09:02:14 - 09:18:37 3976
Greenville 09:10:24 -63.6 Dark Up 54.9 163.8 Up 09:02:13 - 09:18:36 3890
Gimple 09:10:24 -63.5 Dark Up 54.9 163.9 Up 09:02:12 - 09:18:35 3888
Quincy 09:10:25 -63.7 Dark Up 55.1 163.7 Up 09:02:13 - 09:18:36 3871
Portola 09:10:23 -63.5 Dark Up 55.3 164.5 Up 09:02:12 - 09:18:35 3854
Reno 09:10:21 -63.3 Dark Up 55.7 165.5 Up 09:02:10 - 09:18:33 3822
Carson City 09:10:21 -63.6 Dark Up 56.1 165.4 Up 09:02:10 - 09:18:33 3789
Gardnerville 09:10:21 -63.7 Dark Up 56.3 165.4 Up 09:02:10 - 09:18:33 3767
Yerington 09:10:19 -63.3 Dark Up 56.4 166.4 Up 09:02:07 - 09:18:30 3764
Dunrhomin 09:09:24 -53.5 Dark Up 55.4 191.0 Up 09:01:13 - 09:17:36 3720
Hawthorne 09:10:18 -63.3 Dark Up 56.9 167.2 Up 09:02:07 - 09:18:30 3715
Nikitin 09:09:24 -53.6 Dark Up 55.5 191.0 Up 09:01:12 - 09:17:35 3704
CU-SBO 09:09:25 -53.7 Dark Up 55.6 190.9 Up 09:01:13 - 09:17:36 3699
Lee Vining 09:10:19 -63.9 Dark Up 57.4 166.1 Up 09:02:08 - 09:18:31 3669
Bishop 09:10:18 -63.8 Dark Up 58.1 167.2 Up 09:02:06 - 09:18:29 3604
Beatty 09:10:11 -63.0 Dark Up 58.8 170.1 Up 09:02:00 - 09:18:23 3541
Patrick 09:10:01 -61.7 Dark Up 60.6 175.4 Up 09:01:49 - 09:18:12 3364
Laughlin/Bullhead City 09:10:04 -62.3 Dark Up 60.8 173.9 Up 09:01:52 - 09:18:15 3349
Wildwood 09:10:21 -65.7 Dark Up 61.3 165.5 Up 09:02:10 - 09:18:33 3298
Lake Havasu City 09:10:04 -62.4 Dark Up 61.5 174.3 Up 09:01:53 - 09:18:16 3281
Idyllwild 09:10:14 -64.5 Dark Up 61.9 169.2 Up 09:02:02 - 09:18:25 3239
George/Scottsdale 09:09:54 -60.8 Dark Up 62.4 179.3 Up 09:01:42 - 09:18:05 3175
Calipatria 09:10:10 -63.8 Dark Up 62.7 171.5 Up 09:01:58 - 09:18:21 3164
Yuma 09:10:06 -63.3 Dark Up 63.2 173.3 Up 09:01:55 - 09:18:18 3110

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 229762, (2027/11/22 09:10UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  2.17  78
Bellatrix      05:25:07.8 +06:20:58  1.6  5.76  86
52 Ori         05:48:00.2 +06:27:15  5.5  0.39  80
PPM 149408     05:45:25.5 +06:17:52  7.0  0.74  81
PPM 149472     05:47:41.8 +05:53:01  8.8  0.24  80
PPM 149494     05:48:36.3 +06:05:43 10.6  0.09  80
229762         05:48:16.3 +06:04:24 13.6        80
Positions are for J2000

Event circumstances last updated at 2024/04/18 03:49:47 UT

Marc W. Buie, Southwest Research Institute

RECON