RECON: TNO occultation with 575713

Event between (575713) 11UT410 and star GA1160:00443826 with event index number of 2520660

Geocentric closest approach at 2028/01/07 06:19:40 UTC

J2000 position of star is 03:14:52.7 +26:15:33
Equinox of date position of star is 03:16:18.8 +26:20:51
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 12 degrees from the moon. Moon is 72% illuminated.
Apparent brightness V=21.4

[RECON map]
Object is 36.4 AU from the Sun and 35.8 AU from the Earth.
Apparent velocity is 13.6 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 126 seconds.
The 1-sigma cross-track error in the shadow position is 1647 km.
The sky-plane scale is 25979.4 km/arcsec.

The object has an absolute magnitude Hv=5.7
Diameter=413.1 km assuming a 5% albedo -- 31.5 sec chord
Diameter=168.6 km assuming a 30% albedo -- 12.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 575713, (2028/01/07 06:22UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:31.9 +16:33:49  0.8 21.20  30
44Zet Per      03:55:54.0 +31:57:52  2.8 10.25  22
56 Ari         03:13:54.8 +27:21:38  5.6  1.16  12
PPM 092321     03:16:56.3 +26:35:12  8.1  0.24  12
PPM 092316     03:16:26.1 +26:30:10  9.8  0.14  12
575713         03:16:32.8 +26:21:42 16.8        12
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 37.5 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)
Sleaford 06:14:55 -58.5 Dark Up 47.4 250.6 Up 06:03:56 - 06:25:53 8429
Kamloops 06:15:55 -54.4 Dark Up 55.9 236.1 Up 06:04:57 - 06:26:54 8365
Kelowna 06:15:51 -55.3 Dark Up 55.9 238.2 Up 06:04:53 - 06:26:50 8269
Peachland 06:15:53 -55.3 Dark Up 56.1 238.0 Up 06:04:55 - 06:26:52 8261
Summerland 06:15:53 -55.4 Dark Up 56.1 238.3 Up 06:04:54 - 06:26:51 8244
Penticton 06:15:52 -55.5 Dark Up 56.1 238.5 Up 06:04:53 - 06:26:50 8236
Oliver 06:15:52 -55.8 Dark Up 56.3 239.0 Up 06:04:53 - 06:26:50 8198
Anarchist Mountain Observatory 06:15:52 -56.0 Dark Up 56.3 239.4 Up 06:04:53 - 06:26:50 8178
Victoria 06:16:11 -54.2 Dark Up 58.7 234.9 Up 06:05:13 - 06:27:10 8175
Okanogan 06:15:53 -56.3 Dark Up 56.7 240.0 Up 06:04:54 - 06:26:51 8111
Brewster 06:15:53 -56.4 Dark Up 57.0 240.1 Up 06:04:55 - 06:26:52 8084
Manson/Chelan 06:15:55 -56.3 Dark Up 57.3 240.0 Up 06:04:57 - 06:26:54 8066
Wenatchee 06:15:55 -56.5 Dark Up 57.6 240.4 Up 06:04:57 - 06:26:54 8017
Ellensburg 06:15:57 -56.7 Dark Up 57.9 240.7 Up 06:04:58 - 06:26:55 7976
Yakima 06:15:56 -56.9 Dark Up 58.1 241.2 Up 06:04:58 - 06:26:55 7932
Toppenish/White Swan 06:15:57 -57.1 Dark Up 58.1 241.7 Up 06:04:59 - 06:26:56 7907
PNWRO 06:15:49 -58.1 Dark Up 57.4 244.1 Up 06:04:51 - 06:26:48 7850
The Dalles 06:16:01 -57.1 Dark Up 59.0 241.9 Up 06:05:03 - 06:27:00 7833
Maupin 06:16:01 -57.4 Dark Up 59.1 242.6 Up 06:05:02 - 06:26:59 7787
Sisters 06:16:03 -57.6 Dark Up 59.8 243.4 Up 06:05:05 - 06:27:02 7698
Bend 06:16:03 -57.9 Dark Up 59.8 244.1 Up 06:05:04 - 06:27:01 7669
Oregon Observatory 06:16:03 -57.9 Dark Up 59.9 244.2 Up 06:05:04 - 06:27:01 7652
Chiloquin 06:16:07 -58.4 Dark Up 60.7 245.8 Up 06:05:08 - 06:27:05 7515
Klamath Falls 06:16:06 -58.6 Dark Up 60.8 246.4 Up 06:05:07 - 06:27:04 7477
Cedarville 06:15:57 -60.0 Dark Up 60.0 249.4 Up 06:04:59 - 06:26:56 7380
Fall River/Burney 06:16:05 -59.4 Dark Up 61.0 248.8 Up 06:05:07 - 06:27:04 7343
Greenville 06:16:03 -60.2 Dark Up 61.0 250.9 Up 06:05:05 - 06:27:02 7238
Gimple 06:16:03 -60.2 Dark Up 61.0 251.0 Up 06:05:05 - 06:27:02 7237
Quincy 06:16:03 -60.2 Dark Up 61.1 251.2 Up 06:05:05 - 06:27:02 7216
Portola 06:16:00 -60.6 Dark Up 60.8 251.9 Up 06:05:01 - 06:26:58 7196
Reno 06:15:58 -61.2 Dark Up 60.4 253.0 Up 06:04:59 - 06:26:56 7158
Dunrhomin 06:14:41 -69.1 Dark Up 49.5 264.4 Up 06:03:43 - 06:25:40 7137
Carson City 06:15:58 -61.4 Dark Up 60.5 253.7 Up 06:05:00 - 06:26:57 7119
Nikitin 06:14:41 -69.2 Dark Up 49.5 264.6 Up 06:03:42 - 06:25:39 7117
CU-SBO 06:14:41 -69.2 Dark Up 49.6 264.6 Up 06:03:43 - 06:25:40 7109
Gardnerville 06:15:57 -61.5 Dark Up 60.5 254.1 Up 06:04:59 - 06:26:56 7091
Yerington 06:15:54 -61.9 Dark Up 60.1 254.6 Up 06:04:55 - 06:26:52 7089
Hawthorne 06:15:51 -62.5 Dark Up 59.8 255.9 Up 06:04:53 - 06:26:50 7032
Lee Vining 06:15:55 -62.4 Dark Up 60.3 256.4 Up 06:04:57 - 06:26:54 6976
Bishop 06:15:51 -63.2 Dark Up 59.9 258.1 Up 06:04:53 - 06:26:50 6901
Beatty 06:15:41 -64.5 Dark Up 58.7 260.2 Up 06:04:43 - 06:26:40 6832
Patrick 06:15:28 -67.2 Dark Up 56.6 264.7 Up 06:04:30 - 06:26:27 6640
Laughlin/Bullhead City 06:15:31 -66.8 Dark Up 57.2 264.6 Up 06:04:33 - 06:26:30 6619
Wildwood 06:15:56 -64.3 Dark Up 60.5 263.6 Up 06:04:58 - 06:26:55 6545
Lake Havasu City 06:15:31 -67.3 Dark Up 57.1 265.8 Up 06:04:33 - 06:26:30 6542
Idyllwild 06:15:44 -65.9 Dark Up 59.1 265.5 Up 06:04:46 - 06:26:43 6483
George/Scottsdale 06:15:18 -69.5 Dark Up 55.1 268.4 Up 06:04:19 - 06:26:16 6437
Calipatria 06:15:38 -67.0 Dark Up 58.1 267.2 Up 06:04:39 - 06:26:36 6403
Yuma 06:15:34 -67.8 Dark Up 57.4 268.4 Up 06:04:36 - 06:26:33 6347

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 575713, (2028/01/07 06:22UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 21.20  30
44Zet Per      03:54:07.9 +31:53:01  2.8 10.25  22
56 Ari         03:12:14.2 +27:15:25  5.6  1.16  12
PPM 092321     03:15:16.1 +26:29:04  8.1  0.24  12
PPM 092316     03:14:45.9 +26:24:00  9.8  0.14  12
575713         03:14:52.7 +26:15:33 16.8        12
Positions are for J2000

Event circumstances last updated at 2024/01/31 02:57:02 UT

Marc W. Buie, Southwest Research Institute

RECON