RECON: TNO occultation with 599752

Event between (599752) 10VQ11 and star GA1000:01528222 with event index number of 2728363

Geocentric closest approach at 2027/10/28 10:36:16 UTC

J2000 position of star is 06:10:58.5 +10:01:55
Equinox of date position of star is 06:12:17.9 +10:01:31
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 106 degrees from the moon. Moon is 2% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 41.6 AU from the Sun and 41.1 AU from the Earth.
Apparent velocity is 12.7 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 606 seconds.
The 1-sigma cross-track error in the shadow position is 1604 km.
The sky-plane scale is 29775.9 km/arcsec.

The object has an absolute magnitude Hv=5.6
Diameter=448.8 km assuming a 5% albedo -- 35.8 sec chord
Diameter=183.2 km assuming a 30% albedo -- 14.6 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 599752, (2027/10/28 10:31UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:40.7 +07:24:35  0.4  4.70 109
Alhena         06:39:19.1 +16:22:23  1.9  9.10 100
75 Ori         06:18:38.7 +09:55:48  5.4  1.51 104
PPM 122086     06:13:48.3 +10:19:29  7.5  0.44 105
PPM 150019     06:12:07.3 +09:58:44  9.2  0.11 106
599752         06:12:30.6 +10:01:27 16.8       105
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 1.5 sigma about the mid-time.
The median site spacing is 27.0 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 10:35:23 -39.1 Dark Down 46.8 154.0 Up 10:20:23 - 10:50:23 -4512
Victoria 10:35:48 -41.8 Dark Down 47.8 148.9 Up 10:20:48 - 10:50:48 -4553
Peachland 10:35:24 -39.2 Dark Down 47.8 154.4 Up 10:20:24 - 10:50:24 -4591
Kelowna 10:35:22 -39.0 Dark Down 47.8 154.9 Up 10:20:22 - 10:50:22 -4594
Summerland 10:35:24 -39.2 Dark Down 48.0 154.5 Up 10:20:24 - 10:50:24 -4605
Penticton 10:35:24 -39.2 Dark Down 48.1 154.6 Up 10:20:24 - 10:50:24 -4613
Oliver 10:35:24 -39.4 Dark Down 48.4 154.5 Up 10:20:24 - 10:50:24 -4636
Anarchist Mountain Observatory 10:35:26 -39.4 Dark Down 48.6 154.7 Up 10:20:26 - 10:50:26 -4654
Okanogan 10:35:26 -39.8 Dark Down 49.1 154.0 Up 10:20:26 - 10:50:26 -4691
Brewster 10:35:33 -40.0 Dark Down 49.3 153.6 Up 10:20:33 - 10:50:33 -4703
Manson/Chelan 10:35:34 -40.4 Dark Down 49.4 153.0 Up 10:20:34 - 10:50:34 -4704
Wenatchee 10:35:37 -40.7 Dark Down 49.8 152.5 Up 10:20:37 - 10:50:37 -4731
Ellensburg 10:35:39 -41.0 Dark Down 50.1 152.0 Up 10:20:39 - 10:50:39 -4752
Yakima 10:35:43 -41.2 Dark Down 50.4 151.8 Up 10:20:43 - 10:50:43 -4780
Toppenish/White Swan 10:35:40 -41.2 Dark Down 50.7 151.9 Up 10:20:40 - 10:50:40 -4801
The Dalles 10:35:51 -42.1 Dark Down 51.1 150.3 Up 10:20:51 - 10:50:51 -4829
Sleaford 10:34:10 -30.5 Dark Down 47.8 174.8 Up 10:19:10 - 10:49:10 -4858
Maupin 10:35:50 -42.2 Dark Down 51.5 150.2 Up 10:20:50 - 10:50:50 -4862
PNWRO 10:35:35 -40.5 Dark Down 51.5 153.9 Up 10:20:35 - 10:50:35 -4879
Sisters 10:35:58 -42.9 Dark Down 52.1 148.9 Up 10:20:58 - 10:50:58 -4907
Bend 10:35:58 -42.9 Dark Down 52.4 149.2 Up 10:20:58 - 10:50:58 -4934
Oregon Observatory 10:36:00 -43.0 Dark Down 52.5 148.9 Up 10:21:00 - 10:51:00 -4941
Chiloquin 10:36:07 -43.9 Dark Down 53.5 147.4 Up 10:21:07 - 10:51:07 -5023
Klamath Falls 10:36:09 -44.0 Dark Down 53.8 147.3 Up 10:21:09 - 10:51:09 -5051
Fall River/Burney 10:36:12 -44.2 Dark Down 54.9 147.0 Up 10:21:12 - 10:51:12 -5154
Cedarville 10:36:04 -43.2 Dark Down 55.0 149.2 Up 10:21:04 - 10:51:04 -5163
Greenville 10:36:14 -44.3 Dark Down 55.9 147.0 Up 10:21:14 - 10:51:14 -5241
Gimple 10:36:12 -44.2 Dark Down 55.9 147.1 Up 10:21:12 - 10:51:12 -5244
Quincy 10:36:14 -44.4 Dark Down 56.1 146.8 Up 10:21:14 - 10:51:14 -5257
Portola 10:36:13 -44.1 Dark Down 56.4 147.5 Up 10:21:13 - 10:51:13 -5284
Reno 10:36:11 -43.7 Dark Down 56.8 148.3 Up 10:21:11 - 10:51:11 -5330
Carson City 10:36:09 -43.9 Dark Down 57.2 148.0 Up 10:21:09 - 10:51:09 -5359
Gardnerville 10:36:13 -43.9 Dark Down 57.4 147.9 Up 10:21:13 - 10:51:13 -5380
Yerington 10:36:10 -43.5 Dark Down 57.6 148.9 Up 10:21:10 - 10:51:10 -5399
Hawthorne 10:36:09 -43.3 Dark Down 58.2 149.5 Up 10:21:09 - 10:51:09 -5457
Lee Vining 10:36:12 -43.8 Dark Down 58.5 148.2 Up 10:21:12 - 10:51:12 -5483
Bishop 10:36:12 -43.5 Dark Down 59.3 148.9 Up 10:21:12 - 10:51:12 -5560
Beatty 10:36:03 -42.4 Dark Down 60.3 151.4 Up 10:21:03 - 10:51:03 -5663
Dunrhomin 10:34:43 -33.0 Dark Down 59.7 174.8 Up 10:19:43 - 10:49:43 -5821
Wildwood 10:36:27 -44.6 Dark Down 62.0 145.5 Up 10:21:27 - 10:51:27 -5824
Nikitin 10:34:41 -33.1 Dark Down 59.9 174.7 Up 10:19:41 - 10:49:41 -5836
CU-SBO 10:34:43 -33.2 Dark Down 59.9 174.5 Up 10:19:43 - 10:49:43 -5839
Laughlin/Bullhead City 10:35:59 -41.2 Dark Down 62.7 154.1 Up 10:20:59 - 10:50:59 -5896
Patrick 10:35:55 -40.6 Dark Down 62.7 155.6 Up 10:20:55 - 10:50:55 -5903
Idyllwild 10:36:17 -43.2 Dark Down 63.1 148.6 Up 10:21:17 - 10:51:17 -5931
Lake Havasu City 10:36:00 -41.1 Dark Down 63.4 154.0 Up 10:21:00 - 10:51:00 -5964
Calipatria 10:36:12 -42.4 Dark Down 64.1 150.3 Up 10:21:12 - 10:51:12 -6033
Yuma 10:36:11 -41.8 Dark Down 64.9 151.8 Up 10:21:11 - 10:51:11 -6108
George/Scottsdale 10:35:47 -39.4 Dark Down 64.9 158.5 Up 10:20:47 - 10:50:47 -6132

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 599752, (2027/10/28 10:31UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  4.70 109
Alhena         06:37:42.8 +16:23:56  1.9  9.10 100
75 Ori         06:17:06.6 +09:56:31  5.4  1.51 104
PPM 122086     06:12:16.0 +10:20:00  7.5  0.44 105
PPM 150019     06:10:35.2 +09:59:11  9.2  0.11 106
599752         06:10:58.5 +10:01:55 16.8       106
Positions are for J2000

Event circumstances last updated at 2023/12/23 04:35:38 UT

Marc W. Buie, Southwest Research Institute

RECON