RECON: TNO occultation with 16SG58

Event between 16SG58 and star GA0960:00300911 with event index number of 2663958

Geocentric closest approach at 2024/01/05 05:05:13 UTC

J2000 position of star is 03:30:33.3 +06:19:39
Equinox of date position of star is 03:31:49.4 +06:24:28
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon. Moon is 40% illuminated.
Apparent brightness V=22.9

[RECON map]
Object is 35.1 AU from the Sun and 34.5 AU from the Earth.
Apparent velocity is 13.1 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 194 seconds.
The 1-sigma cross-track error in the shadow position is 1580 km.
The sky-plane scale is 25045.4 km/arcsec.

The object has an absolute magnitude Hv=7.3
Diameter=207.0 km assuming a 5% albedo -- 15.9 sec chord
Diameter=84.5 km assuming a 30% albedo -- 6.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 16SG58, (2024/01/05 04:54UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.1 +16:33:21  0.8 18.96 136
Menkar         03:03:32.3 +04:10:57  2.5  7.39 158
1Omi Tau       03:26:06.5 +09:06:43  3.6  3.05 153
PPM 146629     03:32:02.1 +06:16:10  6.7  0.15 151
16SG58         03:31:50.0 +06:24:30 14.7       151
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 4.6 sigma about the mid-time.
The median site spacing is 24.6 km RECON observability=1.0 and success probability=0.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 05:04:34 -52.2 Dark Down 40.8 209.3 Up 04:49:34 - 05:19:34 5302
Kamloops 05:05:41 -45.2 Dark Down 45.2 190.9 Up 04:50:41 - 05:20:41 4981
Kelowna 05:05:35 -46.1 Dark Down 45.9 192.3 Up 04:50:35 - 05:20:35 4932
Peachland 05:05:36 -45.9 Dark Down 46.0 191.9 Up 04:50:36 - 05:20:36 4919
Summerland 05:05:36 -46.0 Dark Down 46.2 192.1 Up 04:50:36 - 05:20:36 4909
Penticton 05:05:35 -46.1 Dark Down 46.2 192.3 Up 04:50:35 - 05:20:35 4906
Oliver 05:05:34 -46.3 Dark Down 46.5 192.3 Up 04:50:34 - 05:20:34 4879
Anarchist Mountain Observatory 05:05:32 -46.4 Dark Down 46.7 192.6 Up 04:50:32 - 05:20:32 4869
Okanogan 05:05:32 -46.5 Dark Down 47.4 192.5 Up 04:50:32 - 05:20:32 4814
Brewster 05:05:32 -46.5 Dark Down 47.6 192.2 Up 04:50:32 - 05:20:32 4790
Victoria 05:05:52 -44.1 Dark Down 47.6 187.0 Up 04:50:52 - 05:20:52 4768
Manson/Chelan 05:05:34 -46.3 Dark Down 47.9 191.8 Up 04:50:34 - 05:20:34 4767
Wenatchee 05:05:34 -46.4 Dark Down 48.4 191.6 Up 04:50:34 - 05:20:34 4727
Ellensburg 05:05:34 -46.4 Dark Down 48.8 191.4 Up 04:50:34 - 05:20:34 4690
Yakima 05:05:34 -46.5 Dark Down 49.2 191.4 Up 04:50:34 - 05:20:34 4657
Toppenish/White Swan 05:05:32 -46.6 Dark Down 49.4 191.7 Up 04:50:32 - 05:20:32 4642
PNWRO 05:05:23 -47.7 Dark Down 49.5 194.1 Up 04:50:23 - 05:20:23 4636
The Dalles 05:05:36 -46.3 Dark Down 50.3 190.7 Up 04:50:36 - 05:20:36 4565
Maupin 05:05:33 -46.5 Dark Down 50.7 191.0 Up 04:50:33 - 05:20:33 4532
Sisters 05:05:35 -46.4 Dark Down 51.6 190.4 Up 04:50:35 - 05:20:35 4451
Bend 05:05:33 -46.6 Dark Down 51.8 190.9 Up 04:50:33 - 05:20:33 4435
Oregon Observatory 05:05:33 -46.6 Dark Down 52.0 190.7 Up 04:50:33 - 05:20:33 4419
Dunrhomin 05:03:49 -58.9 Dark Down 50.6 216.7 Up 04:48:49 - 05:18:49 4402
Nikitin 05:03:48 -58.9 Dark Down 50.7 216.8 Up 04:48:48 - 05:18:48 4386
CU-SBO 05:03:49 -58.9 Dark Down 50.8 216.7 Up 04:48:49 - 05:18:49 4379
Chiloquin 05:05:34 -46.6 Dark Down 53.3 190.4 Up 04:50:34 - 05:20:34 4299
Klamath Falls 05:05:32 -46.7 Dark Down 53.7 190.6 Up 04:50:32 - 05:20:32 4270
Cedarville 05:05:22 -48.0 Dark Down 54.1 193.4 Up 04:50:22 - 05:20:22 4238
Fall River/Burney 05:05:28 -47.2 Dark Down 54.8 191.5 Up 04:50:28 - 05:20:28 4174
Gimple 05:05:23 -47.8 Dark Down 55.6 192.6 Up 04:50:23 - 05:20:23 4103
Greenville 05:05:24 -47.7 Dark Down 55.6 192.5 Up 04:50:24 - 05:20:24 4102
Quincy 05:05:24 -47.7 Dark Down 55.8 192.6 Up 04:50:24 - 05:20:24 4084
Portola 05:05:20 -48.1 Dark Down 55.8 193.4 Up 04:50:20 - 05:20:20 4081
Reno 05:05:15 -48.6 Dark Down 56.0 194.6 Up 04:50:15 - 05:20:15 4069
Carson City 05:05:14 -48.7 Dark Down 56.3 194.8 Up 04:50:14 - 05:20:14 4037
Yerington 05:05:10 -49.2 Dark Down 56.4 195.9 Up 04:50:10 - 05:20:10 4031
Gardnerville 05:05:13 -48.8 Dark Down 56.6 194.9 Up 04:50:13 - 05:20:13 4016
Hawthorne 05:05:05 -49.7 Dark Down 56.7 197.0 Up 04:50:05 - 05:20:05 3999
Lee Vining 05:05:08 -49.4 Dark Down 57.4 196.4 Up 04:50:08 - 05:20:08 3939
Bishop 05:05:02 -50.1 Dark Down 57.8 198.0 Up 04:50:02 - 05:20:02 3898
Beatty 05:04:50 -51.4 Dark Down 57.8 201.1 Up 04:49:50 - 05:19:50 3887
Patrick 05:04:28 -53.9 Dark Down 58.2 207.0 Up 04:49:28 - 05:19:28 3806
Laughlin/Bullhead City 05:04:33 -53.4 Dark Down 58.7 206.0 Up 04:49:33 - 05:19:33 3769
Lake Havasu City 05:04:29 -53.7 Dark Down 59.2 206.9 Up 04:49:29 - 05:19:29 3712
George/Scottsdale 05:04:10 -55.7 Dark Down 58.9 211.7 Up 04:49:10 - 05:19:10 3688
Idyllwild 05:04:43 -51.8 Dark Down 60.7 203.1 Up 04:49:43 - 05:19:43 3594
Wildwood 05:04:55 -50.3 Dark Down 60.9 199.3 Up 04:49:55 - 05:19:55 3590
Calipatria 05:04:33 -52.8 Dark Down 60.9 205.7 Up 04:49:33 - 05:19:33 3559
Yuma 05:04:26 -53.6 Dark Down 60.9 207.7 Up 04:49:26 - 05:19:26 3536

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 16SG58, (2024/01/05 04:54UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 18.96 136
Menkar         03:02:16.8 +04:05:21  2.5  7.39 158
1Omi Tau       03:24:48.7 +09:01:42  3.6  3.05 153
PPM 146629     03:30:45.4 +06:11:19  6.7  0.15 151
16SG58         03:30:33.3 +06:19:39 14.7       151
Positions are for J2000

Event circumstances last updated at 2023/11/05 04:14:18 UT

Marc W. Buie, Southwest Research Institute

RECON