RECON: TNO occultation with 469442

Event between (469442) 02GG166 and star GA0600:13464805 with event index number of 1103783

Geocentric closest approach at 2022/05/02 07:57:04 UTC

J2000 position of star is 17:01:38.6 -28:14:50
Equinox of date position of star is 17:03:02.3 -28:16:41
Stellar brightness G=15.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 161 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=20.5

[RECON map]
TNO is 16.6 AU from the Sun and 15.7 AU from the Earth.
The TNO is moving 15.4 km/sec on the sky relative to the star, or, 4.9 arcsec/hr.
The 1-sigma error in the time of the event is 74 seconds.
The 1-sigma cross-track error in the shadow position is 626 km.
The sky-plane scale is 11408.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=136.1 km assuming a 5% albedo -- 8.8 sec chord
Diameter=55.6 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 469442, (2022/05/02 07:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:46.8 -26:28:47  0.9  7.38 168
23Tau Sco      16:37:16.6 -28:15:38  2.8  5.67 166
PPM 266416     17:08:16.4 -26:32:29  6.3  2.09 160
PPM 266297     17:03:20.3 -27:58:11  7.6  0.32 161
PPM 266278     17:02:40.2 -28:10:17  9.4  0.14 161
469442         17:03:02.8 -28:16:41 15.5       161
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 13.7 km RECON observability=0.2 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 07:58:11 -21.4 Dark Down 7.5 160.9 Really Low 07:51:34 - 08:04:49 8483
Kamloops 07:58:58 -23.9 Dark Down 5.0 148.8 Really Low 07:52:21 - 08:05:36 8283
Kelowna 07:58:58 -24.7 Dark Down 6.0 149.5 Really Low 07:52:21 - 08:05:36 8275
Peachland 07:58:58 -24.8 Dark Down 6.0 149.3 Really Low 07:52:21 - 08:05:36 8268
Summerland 07:58:58 -25.0 Dark Down 6.1 149.4 Really Low 07:52:21 - 08:05:36 8266
Penticton 07:58:58 -25.1 Dark Down 6.2 149.4 Really Low 07:52:21 - 08:05:36 8266
Oliver 07:58:58 -25.4 Dark Down 6.5 149.4 Really Low 07:52:21 - 08:05:36 8256
Anarchist Mountain Observatory 07:58:58 -25.6 Dark Down 6.7 149.6 Really Low 07:52:21 - 08:05:36 8255
Tonasket 07:58:58 -25.9 Dark Down 7.0 149.5 Really Low 07:52:21 - 08:05:36 8245
Okanogan 07:58:58 -26.2 Dark Down 7.2 149.4 Really Low 07:52:21 - 08:05:36 8234
Brewster 07:58:58 -26.5 Dark Down 7.4 149.2 Really Low 07:52:21 - 08:05:36 8223
Manson/Chelan 07:58:58 -26.7 Dark Down 7.4 148.9 Really Low 07:52:21 - 08:05:36 8212
Wenatchee 07:58:58 -27.2 Dark Down 7.8 148.7 Really Low 07:52:21 - 08:05:36 8196
Ellensburg 07:58:58 -27.6 Dark Down 8.0 148.5 Really Low 07:52:21 - 08:05:36 8181
PNWRO 07:58:58 -28.6 Dark Down 9.5 149.7 Really Low 07:52:21 - 08:05:36 8173
Victoria 07:59:30 -26.0 Dark Down 5.8 146.4 Really Low 07:52:52 - 08:06:07 8168
Yakima 07:59:26 -28.0 Dark Down 8.4 148.5 Really Low 07:52:48 - 08:06:03 8157
Toppenish/White Swan 07:59:26 -28.2 Dark Down 8.7 148.6 Really Low 07:52:48 - 08:06:03 8153
Dunrhomin 07:58:32 -32.6 Dark Down 18.8 160.8 Really Low 07:51:54 - 08:05:09 8131
Goldendale 07:59:30 -28.8 Dark Down 9.0 148.3 Really Low 07:52:52 - 08:06:07 8127
CU-SBO 07:58:33 -32.8 Dark Down 19.1 160.7 Really Low 07:51:56 - 08:05:11 8120
The Dalles 07:59:31 -29.0 Dark Down 9.1 148.0 Really Low 07:52:53 - 08:06:08 8112
Maupin 07:59:33 -29.4 Dark Down 9.5 148.0 Really Low 07:52:55 - 08:06:10 8100
Sisters 07:59:37 -30.3 Dark Down 10.0 147.5 Really Low 07:53:00 - 08:06:15 8059
Bend 07:59:36 -30.5 Dark Down 10.3 147.7 Really Low 07:52:59 - 08:06:14 8055
Oregon Observatory 07:59:38 -30.7 Dark Down 10.4 147.6 Really Low 07:53:00 - 08:06:15 8046
North Lake 07:59:37 -31.3 Dark Down 11.2 148.0 Really Low 07:53:00 - 08:06:15 8031
Lakeview 07:59:39 -32.4 Dark Down 12.3 148.3 Really Low 07:53:01 - 08:06:16 7999
Chiloquin 07:59:44 -32.0 Dark Down 11.4 147.2 Really Low 07:53:06 - 08:06:21 7986
Cedarville 07:59:39 -33.1 Dark Down 12.9 148.4 Really Low 07:53:02 - 08:06:17 7976
Klamath Falls 07:59:43 -32.4 Dark Down 11.7 147.2 Really Low 07:53:06 - 08:06:21 7974
Fall River/Burney 07:59:46 -33.5 Dark Down 12.8 147.4 Really Low 07:53:09 - 08:06:24 7932
Susanville 07:59:45 -34.2 Dark Down 13.7 147.9 Really Low 07:53:07 - 08:06:22 7919
Gimple 07:59:46 -34.5 Dark Down 13.8 147.7 Really Low 07:53:09 - 08:06:24 7902
Greenville 07:59:46 -34.5 Dark Down 13.8 147.6 Really Low 07:53:08 - 08:06:23 7901
Reno 07:59:44 -35.0 Dark Down 14.8 148.4 Really Low 07:53:06 - 08:06:21 7896
Portola 07:59:45 -34.8 Dark Down 14.3 148.0 Really Low 07:53:08 - 08:06:23 7896
Quincy 07:59:47 -34.7 Dark Down 14.0 147.6 Really Low 07:53:09 - 08:06:24 7892
Yerington 07:59:42 -35.6 Dark Down 15.5 148.9 Really Low 07:53:04 - 08:06:19 7883
Carson City 07:59:45 -35.4 Dark Down 15.1 148.4 Really Low 07:53:07 - 08:06:22 7880
Tonopah 07:59:35 -36.4 Dark Down 17.0 150.3 Really Low 07:52:58 - 08:06:13 7875
Hawthorne 07:59:41 -36.0 Dark Down 16.1 149.2 Really Low 07:53:03 - 08:06:18 7871
Gardnerville 07:59:45 -35.6 Dark Down 15.3 148.4 Really Low 07:53:07 - 08:06:22 7870
Lee Vining 07:59:45 -36.6 Dark Down 16.4 148.8 Really Low 07:53:07 - 08:06:22 7836
Indian Springs 07:59:31 -37.8 Dark Down 18.9 151.3 Really Low 07:52:53 - 08:06:08 7829
Beatty 07:59:36 -37.6 Dark Down 18.2 150.5 Really Low 07:52:59 - 08:06:14 7826
Bishop 07:59:43 -37.2 Dark Down 17.2 149.3 Really Low 07:53:06 - 08:06:21 7820
Henderson 07:59:29 -38.3 Dark Down 19.7 151.8 Really Low 07:52:52 - 08:06:07 7813
Patrick 07:59:25 -38.8 Dark Down 20.6 152.7 Low 07:52:48 - 08:06:03 7800
Kingman/Dolan Springs 07:59:27 -39.0 Dark Down 20.8 152.5 Low 07:52:49 - 08:06:04 7786
Laughlin/Bullhead City 07:59:29 -39.1 Dark Down 20.6 152.0 Low 07:52:52 - 08:06:07 7775
Mohave Valley 07:59:30 -39.4 Dark Down 20.8 152.0 Low 07:52:53 - 08:06:08 7761
George/Scottsdale 07:58:58 -40.2 Dark Down 22.9 154.0 Low 07:52:21 - 08:05:36 7749
Lake Havasu City 07:59:30 -39.7 Dark Down 21.3 152.1 Low 07:52:52 - 08:06:07 7745
Parker 07:59:31 -40.1 Dark Down 21.6 152.1 Low 07:52:53 - 08:06:08 7727
Idyllwild 07:59:44 -40.7 Dark Down 21.0 150.0 Low 07:53:06 - 08:06:21 7664
Calipatria 07:59:39 -41.2 Dark Down 22.0 150.9 Low 07:53:01 - 08:06:16 7651
Wildwood 07:59:52 -40.5 Dark Down 19.9 148.6 Really Low 07:53:14 - 08:06:29 7648
Yuma 07:59:35 -41.6 Dark Down 22.8 151.5 Low 07:52:58 - 08:06:13 7642

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 469442, (2022/05/02 07:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  7.38 168
23Tau Sco      16:35:52.9 -28:12:58  2.8  5.67 166
PPM 266416     17:06:53.2 -26:30:47  6.3  2.09 160
PPM 266297     17:01:56.3 -27:56:20  7.6  0.32 161
PPM 266278     17:01:16.1 -28:08:25  9.4  0.14 161
469442         17:01:38.6 -28:14:50 15.5       161
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:01:29 UT

Marc W. Buie, Southwest Research Institute

RECON